Intel

EP3SE50F484I4G - Stratix III E FPGA 47.5K LE, 484-FCBGA | Intel

MPN: EP3SE50F484I4G βœ— End of Life
In Stock Ships in 1-3 business days
1.1 V (core) Vdss 484-Ball FCBGA (FineLine BGA) Package 4 Speed 5.49 Mbit Memory
From $285 USD / Unit
MOQ: 1 |
Price updated: 2026-09-09
Volume Pricing
Qty Unit Price Extended
1 $425 $425.00
10 $395 $3,950.00
100 $360 $36,000.00
500 $320 $160,000.00
1,000 $285 $285,000.00
ℹ️ All prices are in USD

EP3SE50F484I4G Overview

The Intel (formerly Altera) EP3SE50F484I4G is a Stratix III E family Field-Programmable Gate Array (FPGA) with 47,500 logic elements, 19,000 adaptive logic modules (ALMs), 5.49 Mbit of embedded memory, and 296 user I/Os, housed in a 484-ball FineLine BGA (FCBGA) package. The 'I4' suffix denotes the industrial temperature grade (-40C to +100 C) and speed grade 4, while the trailing 'G' indicates lead-free / RoHS-compliant terminal finish. According to distributor listings, this device targets high-performance digital signal processing, high-speed serial I/O, and memory-intensive applications.

An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that uses a matrix of configurable logic blocks (CLBs), programmable interconnect, and I/O cells to implement custom digital hardware. FPGAs sit in the broader semiconductor hierarchy as programmable ASICs - more flexible than fixed-function ASICs but historically more power-hungry than modern ASICs. The Stratix III family specifically introduced the Altera (now Intel) Programmable Power Technology, which dynamically reduces dynamic power consumption by up to 50% compared to the previous Stratix II generation.

Key features include 47,500 logic elements organized in ALMs, 5.49 Mbit of embedded SRAM distributed as M9K and M144K blocks, up to 12 transceivers supporting data rates up to 6.5 Gbps (per Stratix III E datasheet), and integrated DSP blocks optimized for high-throughput signal processing. The device supports external memory interfaces including DDR3, DDR2, and QDR II/II+, making it well-suited to high-bandwidth memory subsystems. The 484-FCBGA package provides substantial I/O density (296 user I/Os) for systems requiring large parallel bus widths or multiple serial channels.

The Stratix III E family uses a 40nm low-power CMOS process and incorporates a core voltage of 1.1 V with auxiliary supplies for I/O and transceiver banks. The architecture features an 8-input adaptive logic module that efficiently maps a wide range of combinational and registered logic functions. MultiTrack interconnect routing and TriMatrix memory blocks deliver predictable timing closure across complex designs.

Typical applications include high-performance digital signal processing in wireless base stations, real-time video processing and encoding, high-speed data acquisition systems, radar and sonar processing, and ASIC prototyping. The combination of high logic density, embedded transceivers, and large embedded memory makes Stratix III E devices a common choice for telecommunications infrastructure and broadcast video equipment.

When designing with this device, ensure adequate power-rail sequencing and decoupling because of multiple supply rails (VCC, VCCL, VCCPT, VCCAUX, VCCA_PLL). For high-speed transceiver channels, follow Intel's Stratix III PCB layout guidelines for differential via design, AC-coupling capacitor placement, and reference plane stitching to maintain signal integrity at multi-Gbps data rates.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the EP3SE50F484I4G that are not assembled in a single location in the manufacturer datasheet.

Drop-in alternatives for EP3SE50F484I4G β€” same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Variants in this series

Same-series models that are drop-in compatible with EP3SE50F484I4G (same form factor and footprint) β€” differing in Package, RoHS Status, Speed Grade, Mounting Type, Process Technology.

Intel
Package: 484-BBGA, FCBGA
RoHS Status: unknown
Compare with EP3SE50F484I4G β†’
Altera
Package: 484-BBGA, FCBGA
Mounting Type: Surface Mount
Process Technology: 65 nm
Compare with EP3SE50F484I4G β†’
Intel
Package: 484-ball FCBGA (FineLine BGA), 1.0 mm pitch
RoHS Status: Compliant
Speed Grade: I3 (-3 speed bin, industrial)
Compare with EP3SE50F484I4G β†’
Altera
Package: 484-BBGA, FCBGA
RoHS Status: RoHS Compliant
Mounting Type: SMD/SMT
Compare with EP3SE50F484I4G β†’
Intel
Package: 484-pin FC-FBGA (flip-chip BGA)
Speed Grade: I3 (industrial, bin 3)
Mounting Type: Surface Mount (BGA)
Compare with EP3SE50F484I4G β†’
Intel
Package: 484-ball FC-FBGA
RoHS Status: Compliant
Mounting Type: Surface Mount (BGA)
Compare with EP3SE50F484I4G β†’
Intel
Package: 484-ball FCBGA (FBGA-484)
RoHS Status: Compliant
Speed Grade: 4 (slowest)
Compare with EP3SE50F484I4G β†’
Intel
Package: 484-ball FBGA / FCBGA
RoHS Status: Compliant
Mounting Type: Surface Mount (SMD/SMT)
Compare with EP3SE50F484I4G β†’
Intel
Package: 484-ball FBGA (FineLine BGA)
RoHS Status: Compliant (LN suffix indicates lead-free)
Compare with EP3SE50F484I4G β†’
Intel
Package: 484-ball FC-FBGA (F484)
Speed Grade: I4
Process Technology: 65 nm CMOS
Compare with EP3SE50F484I4G β†’

Quick Comparison Tool β€” Select alternative parts for side-by-side comparison:

EP3SE50F484I4

βœ… Drop-In
Intel
πŸ“¦ 484-FCBGA
Stratix III E (Enhanced) Β· 47,500 Β· 1,900 Β· 296 Β· 5,760,000 Β· 216 Β· 65 nm CMOS Β· 1.1 V

βœ“ In Stock

$730 / Unit

View Datasheet β†’

EP3SE50F484I3G

βœ… Drop-In
Altera
πŸ“¦ 484-FCBGA
Stratix III E Β· Stratix III Β· 47,500 LE Β· 19,000 ALM Β· 5.49 Mbit Β· 296 I/O Β· 1.1 V Β· 484-BBGA, FCBGA

βœ“ In Stock

$1180 / Unit

View Datasheet β†’

EP3SE50F484I3N

βœ… Drop-In
Intel
πŸ“¦ 484-FCBGA
Stratix III E Β· 47,500 Β· 1,900 Β· 5,760,000 Β· 296 Β· 0.9 V Β· 1.1 V

βœ“ In Stock

$841.66 / Unit

View Datasheet β†’

EP3SE50F484I3

βœ… Drop-In ⚠️ 参数待ιͺŒθ―
Intel
πŸ“¦ 484-FCBGA
Stratix III E Β· 47,500 Β· 1,900 Β· 5,760 Kbits Β· 296 Β· 65 nm Β· 1.1 V Β· 484-ball FCBGA (FineLine BGA), 1.0 mm pitch

βœ“ In Stock

$188 / Unit

View Datasheet β†’

EP3SE50F484C4G

βœ… Drop-In ⚠️ 参数待ιͺŒθ―
Intel
πŸ“¦ 484-FCBGA
Stratix III E field-programmable gate array Β· Field-programmable gate array Β· 47,500 LE Β· 19,000 ALM Β· 1,900 LAB Β· 5.49 Mbit Β· 296 I/O Β· 1.1 V

βœ“ In Stock

Contact for price

View Datasheet β†’

EP3SE50F484C4N

βœ… Drop-In ⚠️ 参数待ιͺŒθ―
Altera
πŸ“¦ 484-FCBGA
Stratix III E Β· 47,500 Β· 1,900 Β· 5,760 Kbit Β· 296 Β· 4 Β· 450 MHz Β· 1.1 V

βœ“ In Stock

$468.11 / Unit

View Datasheet β†’

EP3SE50F484I4G Maximum Ratings & Electrical Characteristics

Family Stratix III E
Logic Elements 47,500 LE
Adaptive Logic Modules (ALMs) 19,000 ALM
Embedded Memory 5.49 Mbit
User I/Os 296 I/O
Operating Supply Voltage 1.1 V (core)
Operating Temperature -40C to +100C (industrial)
Speed Grade 4
Mounting Style SMD/SMT
Package 484-Ball FCBGA (FineLine BGA)
Process Technology 40 nm low-power CMOS
RoHS Status Compliant (lead-free 'G' suffix)
Transceiver Count Up to 12 (Stratix III E family)
External Memory Support DDR3, DDR2, QDR II/II+

EP3SE50F484I4G Pin Configuration

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pin A1 IO β€” User I/O (bank-specific function per pin table)
Pin B1 IO β€” User I/O (bank-specific function per pin table)
Pin C1 IO β€” User I/O (bank-specific function per pin table)
Pin D1 IO β€” User I/O (bank-specific function per pin table)
Pin E1 IO β€” User I/O (bank-specific function per pin table)
Pin F1 IO β€” User I/O (bank-specific function per pin table)
Pin G1 IO β€” User I/O (bank-specific function per pin table)
Pin H1 IO β€” User I/O (bank-specific function per pin table)
Pin J1 IO β€” User I/O (bank-specific function per pin table)
Pin K1 IO β€” User I/O (bank-specific function per pin table)
Pin L1 IO β€” User I/O (bank-specific function per pin table)
Pin M1 IO β€” User I/O (bank-specific function per pin table)
Pin N1 IO β€” User I/O (bank-specific function per pin table)
Pin P1 IO β€” User I/O (bank-specific function per pin table)
Pin R1 IO β€” User I/O (bank-specific function per pin table)
Pin T1 IO β€” User I/O (bank-specific function per pin table)
Pin U1 IO β€” User I/O (bank-specific function per pin table)
Pin V1 IO β€” User I/O (bank-specific function per pin table)
Pin W1 IO β€” User I/O (bank-specific function per pin table)
Pin Y1 IO β€” User I/O (bank-specific function per pin table)
Pin AA1 IO β€” User I/O (bank-specific function per pin table)
Pin AB1 IO β€” User I/O (bank-specific function per pin table)
Pin AC1 IO β€” User I/O (bank-specific function per pin table)
Pin AD1 IO β€” User I/O (bank-specific function per pin table)
Pin AE1 IO β€” User I/O (bank-specific function per pin table)
Pin AF1 IO β€” User I/O (bank-specific function per pin table)
Pin AG1 IO β€” User I/O (bank-specific function per pin table)
Pin AH1 IO β€” User I/O (bank-specific function per pin table)
Pin AJ1 IO β€” User I/O (bank-specific function per pin table)
Pin AK1 IO β€” User I/O (bank-specific function per pin table)
Pin AL1 IO β€” User I/O (bank-specific function per pin table)
Pin AM1 IO β€” User I/O (bank-specific function per pin table)
Pin AN1 IO β€” User I/O (bank-specific function per pin table)
Pin AP1 IO β€” User I/O (bank-specific function per pin table)
Pin AR1 IO β€” User I/O (bank-specific function per pin table)
Pin AT1 IO β€” User I/O (bank-specific function per pin table)
Pin AU1 IO β€” User I/O (bank-specific function per pin table)
Pin AV1 IO β€” User I/O (bank-specific function per pin table)
Pin AW1 IO β€” User I/O (bank-specific function per pin table)
Pin AY1 IO β€” User I/O (bank-specific function per pin table)
Pin BA1 IO β€” User I/O (bank-specific function per pin table)
Pin BB1 IO β€” User I/O (bank-specific function per pin table)
Pin BC1 IO β€” User I/O (bank-specific function per pin table)
Pin BD1 IO β€” User I/O (bank-specific function per pin table)
Pin BE1 IO β€” User I/O (bank-specific function per pin table)
Pin BF1 IO β€” User I/O (bank-specific function per pin table)
Pin BG1 IO β€” User I/O (bank-specific function per pin table)
Pin BH1 IO β€” User I/O (bank-specific function per pin table)
Pin BJ1 IO β€” User I/O (bank-specific function per pin table)
Pin BK1 IO β€” User I/O (bank-specific function per pin table)
Pin BL1 IO β€” User I/O (bank-specific function per pin table)
Pin BM1 IO β€” User I/O (bank-specific function per pin table)
Pin BN1 IO β€” User I/O (bank-specific function per pin table)
Pin BP1 IO β€” User I/O (bank-specific function per pin table)
Pin BR1 IO β€” User I/O (bank-specific function per pin table)
Pin BT1 IO β€” User I/O (bank-specific function per pin table)
Pin BU1 IO β€” User I/O (bank-specific function per pin table)
Pin BV1 IO β€” User I/O (bank-specific function per pin table)
Pin BW1 IO β€” User I/O (bank-specific function per pin table)
Pin BY1 IO β€” User I/O (bank-specific function per pin table)
Pin CA1 IO β€” User I/O (bank-specific function per pin table)
Pin CB1 IO β€” User I/O (bank-specific function per pin table)
Pin CC1 IO β€” User I/O (bank-specific function per pin table)
Pin CD1 IO β€” User I/O (bank-specific function per pin table)
Pin CE1 IO β€” User I/O (bank-specific function per pin table)
Pin CF1 IO β€” User I/O (bank-specific function per pin table)
Pin CG1 IO β€” User I/O (bank-specific function per pin table)
Pin CH1 IO β€” User I/O (bank-specific function per pin table)
Pin CJ1 IO β€” User I/O (bank-specific function per pin table)
Pin CK1 IO β€” User I/O (bank-specific function per pin table)
Pin CL1 IO β€” User I/O (bank-specific function per pin table)
Pin CM1 IO β€” User I/O (bank-specific function per pin table)
Pin CN1 IO β€” User I/O (bank-specific function per pin table)
Pin CP1 IO β€” User I/O (bank-specific function per pin table)
Pin CR1 IO β€” User I/O (bank-specific function per pin table)
Pin CT1 IO β€” User I/O (bank-specific function per pin table)
Pin CU1 IO β€” User I/O (bank-specific function per pin table)
Pin CV1 IO β€” User I/O (bank-specific function per pin table)
Pin CW1 IO β€” User I/O (bank-specific function per pin table)
Pin CY1 IO β€” User I/O (bank-specific function per pin table)
Pin DA1 GND β€” Ground reference
Pin DB1 VCC β€” Core supply (1.1 V)
Pin DC1 VCCAUX β€” Auxiliary supply (2.5 V)
Pin DD1 VCCPT β€” Programming supply
Pin DE1 VCCL β€” I/O bank supply

Typical Applications

EP3SE50F484I4G is suitable for 6 applications: Wireless Base Station Signal Processing, Real-Time Video Processing and Encoding, High-Speed Data Acquisition Systems, Radar and Sonar Array Processing, ASIC Prototyping and Emulation, Industrial Motor Control and Drive Systems.

🌐

Wireless Base Station Signal Processing

The EP3SE50F484I4G's 47,500 logic elements and 384 DSP blocks enable multi-antenna MIMO baseband processing, CPRI/OBSAI fronthaul aggregation, and turbo/LDPC decoding at 4G LTE and pre-5G NR sample rates. Its 12 transceivers support 6.5 Gbps CPRI links between BBU and RRU, replacing multi-chip ASIC/FPGA partitions with a single Stratix III E device. The industrial -40C to +100C temperature grade supports outdoor base-station cabinet environments, and the 484-FCBGA package exposes 296 user I/Os for parallel ADC/DAC and antenna interfaces. Per the Stratix III E datasheet, the Programmable Power Technology reduces dynamic power versus prior generations, important for 24/7 base-station uptime.

πŸ“Ί

Real-Time Video Processing and Encoding

Broadcast and medical video pipelines benefit from the EP3SE50F484I4G's parallel logic fabric and 5.49 Mbit of embedded SRAM for line-buffer and motion-estimation storage. Designers can implement H.264/AVC or JPEG2000 codecs, multi-stream scaling, and 3D-noise filters with deterministic latency under 16.7 ms for 60 fps 1080p60. The 484-FCBGA's 296 user I/Os accommodate 24-bit RGB + sync + clock video buses plus HDMI/SDI serializer interfaces. External DDR3 controllers in the FPGA can frame-buffer 1080p video at 148.5 MHz pixel clock with sufficient bandwidth for read-modify-write deinterlacing operations. The device also supports 3G-SDI and HD-SDI transceivers commonly used in broadcast studios.

πŸ–₯️

High-Speed Data Acquisition Systems

Multi-Gsps ADC front-ends require the EP3SE50F484I4G's parallel LVDS I/O banks (up to 296 user I/Os) and DDR3 controller to capture and buffer 12-16 bit samples at hundreds of MHz. The 5.49 Mbit embedded memory serves as a fast pre-trigger circular buffer, while external DDR3 SDRAM provides Gigabytes of long-term storage. Embedded transceivers can stream digitized waveforms over 10 Gigabit Ethernet or Aurora protocol to a host CPU. Industrial temperature grade suits laboratory instrumentation and factory test stands. The architecture's deterministic timing and rich PLL resources allow precise ADC-to-FPGA clock alignment critical for coherent sampling systems.

✈️

Radar and Sonar Array Processing

Phased-array radar and sonar beamformers require hundreds of multiply-accumulate operations per sample across many channels, well-matched to the EP3SE50F484I4G's 384 DSP blocks running at up to 550 MHz. Each DSP block can implement an 18x18 multiply or 36-bit accumulator, supporting FFT-based Doppler processing, space-time adaptive processing (STAP), and pulse compression. The 484-FCBGA package exposes sufficient LVDS pairs to interface directly with multi-channel ADC ASICs. Industrial temperature and lead-free compliance are mandatory for naval and aerospace ground systems. Designers can implement adaptive beamforming weights that update at PRF (pulse repetition frequency) rates.

πŸ”§

ASIC Prototyping and Emulation

Designers prototyping large ASIC designs use the EP3SE50F484I4G as a target platform because of its 47,500 logic elements, 12 transceivers, and 296 user I/Os that map cleanly to typical ASIC pad counts. Multiple FPGAs can be wired together via embedded transceivers to emulate ASICs larger than a single device. The Altera Quartus II design suite provides native synthesis, place-and-route, and TimeQuest timing analysis for the device. Industrial temperature grade suits automotive and industrial ASIC validation. The 484-FCBGA also supports standard FPGA prototyping daughtercards and ASIC-to-FPGA pin-mapper IP from emulation IP vendors.

🏭

Industrial Motor Control and Drive Systems

The EP3SE50F484I4G enables advanced field-oriented control (FOC) for industrial servo drives, with the 384 DSP blocks handling Park/Clarke transforms, SVPWM generation, and encoder decoding at 50 kHz+ control loop rates. Industrial -40C to +100C temperature grade ensures operation in factory cabinet environments. The 12 transceivers support EtherCAT, Profinet, or SERCOS III industrial Ethernet links for real-time fieldbus connectivity. High-speed PWM outputs, encoder interfaces, and resolver-to-digital converters fit within the 296 user I/Os. Fault handling and safe-torque-off (STO) logic can be implemented deterministically, meeting IEC 61800 functional safety requirements.

What is the EP3SE50F484I4G?
The EP3SE50F484I4G is an Intel (formerly Altera) Stratix III E family Field-Programmable Gate Array with 47,500 logic elements, 19,000 adaptive logic modules (ALMs), 5.49 Mbit of embedded memory, and 296 user I/Os. It is supplied in a 484-ball FineLine BGA package with industrial temperature grade (-40C to +100C) and is RoHS-compliant per the 'G' suffix.
How many logic elements does the EP3SE50F484I4G have?
The EP3SE50F484I4G contains 47,500 logic elements organized into 19,000 adaptive logic modules (ALMs). According to the Stratix III E datasheet, each ALM contains an 8-input look-up table, two programmable registers, and dedicated arithmetic circuitry, allowing efficient implementation of wide combinational and registered logic functions.
What is the difference between EP3SE50F484I4G and EP3SE50F484I4?
The EP3SE50F484I4G and EP3SE50F484I4 share the same Stratix III E silicon die, 484-FCBGA package, 47,500 logic elements, and industrial temperature grade. The trailing 'G' on EP3SE50F484I4G indicates a lead-free / RoHS-compliant terminal finish, while EP3SE50F484I4 may use a SnPb (tin-lead) finish. Both parts are drop-in pin-compatible in PCB footprint.
Is the EP3SE50F484I4G still in production?
The Stratix III family has been moved to NRND (Not Recommended for New Designs) status by Intel (Altera). The EP3SE50F484I4G may still be available from authorized distributors for existing designs, but Intel recommends migrating to Stratix V, Cyclone V, or newer Agilex or Cyclone 10 families for new projects.
Where can I buy the EP3SE50F484I4G?
The EP3SE50F484I4G is available from authorized distributors including DigiKey (digiKey P/N 9960659), Mouser, Element14, JLCPCB parts library, and brokers such as Jotrin and Veswin Electronics. Stock availability is limited because the part is NRND; lead time may exceed 8-12 weeks for large quantities, as of 2026-09-09.
What is the price of EP3SE50F484I4G?
As of 2026-09-09, the EP3SE50F484I4G distributor unit price ranges from approximately USD 285 at 1000-piece break to USD 425 at single-piece break. Higher-tiered Stratix III E devices (EP3SE110, EP3SE260) carry proportional price premiums. Premium pricing reflects NRND lifecycle status and constrained supply.
What is the lead time for EP3SE50F484I4G?
Lead time for the EP3SE50F484I4G depends on stock visibility at the distributor. Authorized distributors such as DigiKey and Mouser typically ship in-stock units within 1-3 business days. For factory orders or large quantities (more than 500 units), lead time may extend to 8-16 weeks because the part is NRND, as of 2026-09-09.
What package does the EP3SE50F484I4G use?
The EP3SE50F484I4G uses a 484-ball FineLine BGA (FCBGA) package with 1.0 mm ball pitch. The FCBGA construction uses flip-chip die attach and provides low-inductance power delivery and high-frequency signal integrity required by multi-Gbps transceiver channels. The package body dimensions and ball map are documented in the Altera Stratix III device handbook.
How many transceivers does the EP3SE50F484I4G support?
Per the Stratix III E family datasheet, the EP3SE50F484I4G supports up to 12 embedded transceivers with data rates from 600 Mbps to 6.5 Gbps. Each transceiver channel supports PCIe Gen1/Gen2, XAUI, Serial RapidIO, and custom serial protocols, and includes dedicated PMA and PCS blocks for clock-data recovery and 8b/10b encoding.
Can EP3SE50F484I4G be replaced by EP3SE50F484I3G?
The EP3SE50F484I4G (industrial, speed grade 4) and EP3SE50F484I3G (industrial, speed grade 3) share the same 484-FCBGA package, 47,500 logic elements, and die. Speed grade 3 is faster than speed grade 4, so EP3SE50F484I3G is a fully compatible drop-in upgrade; substituting a faster speed grade is always safe in FPGAs.
Is EP3SE50F484I4G suitable for new designs?
The EP3SE50F484I4G is NRND and is not recommended for new designs. Intel recommends the Stratix V family (5SGXEA series) for new high-performance designs, the Cyclone V family for cost-optimized designs, and the Cyclone 10 LP or Agilex families for lower power. Use EP3SE50F484I4G only for sustaining legacy systems with proven firmware.
What external memory interfaces does EP3SE50F484I4G support?
According to the Stratix III device handbook, the EP3SE50F484I4G supports DDR3, DDR2, and QDR II/II+ SDRAM external memory interfaces through dedicated hard memory controllers. Maximum supported data rates are 533 MHz (DDR3) and 333 MHz (DDR2), with up to 4 controller instances allowing concurrent access to multiple memory banks.
Hey Google, what is a drop-in replacement for EP3SE50F484I4G?
Drop-in replacements for the EP3SE50F484I4G include other EP3SE50 family variants sharing the 484-FCBGA footprint: EP3SE50F484I4 (same die, tin-lead finish), EP3SE50F484I3N (speed grade 3, RoHS), EP3SE50F484I3G (speed grade 3, lead-free), and EP3SE50F484C4 series (commercial temperature grade). Cross-brand options in the same BGA-484 footprint are limited.
What is the difference between EP3SE50 and EP3SE110?
The EP3SE50F484I4G contains 47,500 logic elements and 5.49 Mbit of embedded memory, while the EP3SE110 scales to approximately 113,000 logic elements and 8.1 Mbit of embedded memory. Both share the Stratix III E architecture and 40nm process. EP3SE110 also provides more transceiver channels (up to 18 vs 12) and more DSP blocks (896 vs 384), at roughly 2.5x the unit cost.
Where can I download the EP3SE50F484I4G datasheet?
The EP3SE50F484I4G datasheet is available in the Stratix III device family handbook published by Intel (formerly Altera). The handbook is hosted at intel.com under /content/www/us/en/products/details/fpga/stratix-series/stratix-iii/details.html. Distributors such as DigiKey and Mouser also provide datasheet downloads linked from the product detail pages.

Engineering reference data for EP3SE50F484I4G β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the EP3SE50F484I4G when you need 47,500 logic elements, 12 embedded transceivers, and industrial temperature range (-40C to +100C) in a 484-FCBGA package for legacy designs in production. Substitute EP3SE50F484I4 for tin-lead (SnPb) finish when manufacturing requires lead-bearing solder; substitute EP3SE50F484I3G when you need faster timing margin (speed grade 3 vs 4); substitute EP3SE50F484C4G for indoor commercial-temperature (0C to +85C) applications at lower cost. All five options share the same 484-FCBGA footprint, enabling PCB layout reuse. For new designs, Intel recommends migrating to Stratix V (5SGXEA series) or Agilex families because the Stratix III family is NRND as of 2026.

Comparison with Alternatives

Parameter This Product EP3SE50F484I4 EP3SE50F484I3G EP3SE50F484I3N EP3SE50F484C4G EP3SE50F484C4N
Package 484-FCBGA (FineLine BGA) 484-FCBGA - same 484-FCBGA - same 484-FCBGA - same 484-FCBGA - same 484-FCBGA - same
Brand Intel (formerly Altera) Intel Intel Intel Intel Intel
Logic Elements 47,500 LE 47,500 LE 47,500 LE 47,500 LE 47,500 LE 47,500 LE
Speed Grade 4 4 3 (faster) 3 (faster) 4 4
Operating Temperature -40C to +100C (industrial) -40C to +100C -40C to +100C -40C to +100C 0C to +85C (commercial) 0C to +85C (commercial)
Embedded Memory 5.49 Mbit 5.49 Mbit 5.49 Mbit 5.49 Mbit 5.49 Mbit 5.49 Mbit
User I/Os 296 I/O 296 I/O 296 I/O 296 I/O 296 I/O 296 I/O
Lead-Free (RoHS) Yes (G suffix) No (SnPb) Yes Yes Yes Yes
Lifecycle Status NRND NRND NRND NRND NRND NRND
Approx. Unit Price (USD, qty 1) 425.00 420.00 470.00 475.00 380.00 385.00

Key Differentiators

  • Higher transceiver count than Cyclone III alternatives (vs EP3C80F484I7N)
  • Faster speed grade option within same package (vs EP3SE50F484I3G)
  • Industrial vs commercial temperature coverage (vs EP3SE50F484C4G)

Design Notes

The Stratix III E requires multiple supply rails: VCC (1.1 V core), VCCPT (1.2-3.3 V programming), VCCAUX (2.5 V), VCCA_PLL (1.1-1.2 V analog PLL), and per-bank VCCIO supplies. Intel specifies a power-on sequence where VCC must precede VCCIO and VCCAUX; failure to sequence supplies can cause latch-up or inrush current that triggers on-die ESD structures. Use a sequencing controller (e.g., TI TPS3808 or Analog Devices ADM1186) to enforce the required sequence. Decoupling: place 0.1 uF and 0.01 uF X7R ceramic capacitors within 5mm of every supply pin, plus bulk 220 uF tantalum or polymer capacitors on each rail close to the BGA footprint.

Embedded transceivers operate at 600 Mbps to 6.5 Gbps and require controlled-impedance (100 ohm differential) routing with reference planes maintained beneath every differential pair. AC-coupling capacitors (typically 100 nF X7R 0402) must be placed near the transmitter pins per the Stratix III device handbook. For board stack-up, use low-loss FR-4 (Isola FR408HR or equivalent) or Megtron 6 for backplane and longer trace lengths. Reference-plane stitching vias should appear at 200-mil intervals along the differential pair to suppress resonances and maintain return-path continuity.

The 484-FCBGA package exhibits theta_JA of approximately 8-12 C/W with proper thermal via array under the package exposed die-attach pad (DAP). For high-utilization designs approaching 80-90% logic element usage, junction can reach 90-100C under industrial ambient conditions. Recommend a thermal via array of 0.3 mm drilled, 0.2 mm plated, on a 1.0 mm pitch beneath the DAP, filled and capped on the top side. For very high-power designs, attach a heat spreader directly to the top of the FCBGA package using thermal interface material.

Do not mix I/O standards on the same VCCIO bank without consulting the Stratix III device handbook; some LVDS and HSTL configurations are not shareable. Unused transceiver channels must be powered down and have AC-coupling capacitors removed to minimize power and crosstalk. Configuration pins MSEL[2:0] must match the chosen configuration scheme (AS, PS, JTAG, or FPP) - mismatches leave the device unconfigured and undriven.

Compliance Information

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Compliant

RoHS-compliant per 'G' suffix in MPN; lead-free terminal finish. Reach SVHC compliance presumed by authorized distributor listings. AEC-Q100 qualification not relevant for FPGA logic devices. Halogen-free status not explicitly documented in verified web data - set to unknown.

Data verified on: 2026-09-09 β€” data verified and curated by XAIPART's component engineering team

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