Intel

EP3SL340H1152C3 - Stratix III L FPGA, 337.5K Cells, 1152-BGA | Intel

MPN: EP3SL340H1152C3 βœ— End of Life
In Stock Ships in 1-3 business days
1.1 V Vdss 1152-ball FCBGA (HBGA) Package 717 MHz Speed 18,822,144 Memory
From $2550 USD / Unit
MOQ: 1 |
Price updated: 2026-09-09
Volume Pricing
Qty Unit Price Extended
1 $3200 $3,200.00
10 $3050 $30,500.00
50 $2880 $144,000.00
100 $2750 $275,000.00
500 $2550 $1,275,000.00
ℹ️ All prices are in USD

EP3SL340H1152C3 Overview

The Intel EP3SL340H1152C3 is a high-density Stratix III L FPGA from Intel's Stratix III family, featuring 337,500 logic elements in a 1152-ball FCBGA (HBGA) package. Built on a 65 nm CMOS process node with a 1.1 V core supply and a 717 MHz core fabric frequency, the EP3SL340H1152C3 delivers high-performance parallel processing for digital signal processing, high-speed serial I/O bridging, and ASIC prototyping.

What is an FPGA? An FPGA (Field Programmable Gate Array) is a semiconductor device whose digital logic is defined after manufacturing by loading a configuration bitstream into on-chip SRAM memory. FPGAs sit in the broader category of programmable logic devices (PLDs), which also includes CPLDs; FPGAs extend this concept to very high logic densities, embedded block RAM, DSP blocks, and multi-gigabit transceivers. Designers choose FPGAs to accelerate parallel algorithms, implement custom interfaces, and reduce PCB area by integrating glue logic and protocol bridges that previously required multiple ASICs.

The Stratix III L sub-series is engineered for logic-intensive workloads where routing flexibility and DSP throughput matter more than maximum transceiver count. The EP3SL340H1152C3 supports 744 user I/O pins via the 1152-pin FCBGA package, which exposes the device's full I/O bank count. Embedded block RAM, DSP blocks, and high-speed serial transceivers operate from dedicated power rails and are programmable through Intel's Quartus II design suite.

Typical applications include high-speed digital signal processing cards, telecommunications line cards, ASIC prototyping, image processing pipelines, and high-performance computing coprocessors. The 1.1 V core Vcc and separate VccPD, VccPT power domains are supplied through dedicated pins; PCB designers must follow Intel's power decoupling and ground-bonding guidelines.

When designing with the EP3SL340H1152C3, ensure the PCB has at least 6 dedicated ground bond-out pins per quadrant to support the package's thermal and signal-integrity requirements. Configuration can be loaded via JTAG, fast passive parallel, or a configuration flash, all of which are documented in the Stratix III handbook. Pricing is on the order of thousands of dollars per unit at low quantities.

This page synthesizes distributor pricing, drop-in same-family alternatives, and Stratix III L design notes not consolidated in the manufacturer datasheet. Engineers selecting the EP3SL340H1152C3 should also consult Intel's Stratix III Device Handbook for full pinout, timing, and power-supply sequencing guidance.

Drop-in alternatives for EP3SL340H1152C3 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 EP3SL340H1152C3 (same form factor and footprint) β€” differing in Speed Grade, Package, Operating Temperature, Operating Temperature Grade, Configuration Memory.

Intel
Speed Grade: C2 (moderate)
Package: 1152-Ball FC-HFBGA (flip-chip)
Operating Temperature Grade: Commercial
Compare with EP3SL340H1152C3 β†’
Intel
Speed Grade: 3
Package: 1152-BBGA, FCBGA
Operating Temperature: 0C to +85C (Commercial)
Compare with EP3SL340H1152C3 β†’
Intel
Speed Grade: C4 (commercial, speed grade 4)
Package: 1152-pin FCBGA (Flip-Chip BGA)
Operating Temperature: 0C to 85C (commercial)
Compare with EP3SL340H1152C3 β†’
Altera
Speed Grade: C4L (L-suffix low power)
Package: 1152-BBGA, FCBGA (HBGA)
Operating Temperature: 0 C to +85 C (commercial)
Compare with EP3SL340H1152C3 β†’
Intel
Speed Grade: C4
Package: 1152-BBGA, FCBGA (flip-chip)
Operating Temperature: 0C to +85C (commercial)
Compare with EP3SL340H1152C3 β†’
Intel
Speed Grade: 4
Package: 1152-ball FCBGA (FineLine BGA)
Operating Temperature: 0C to +85C (commercial)
Compare with EP3SL340H1152C3 β†’
Intel
Speed Grade: I3 (industrial, speed grade 3)
Package: 1152-BBGA, FCBGA
Operating Temperature: Industrial grade
Compare with EP3SL340H1152C3 β†’
Intel
Package: 1152-ball FCBGA / HBGA
Operating Temperature Grade: Industrial (I4: -40C to +100C junction)
Compare with EP3SL340H1152C3 β†’

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

EP3SL340H1152C2N

βœ… Drop-In ⚠️ 参数待ιͺŒθ―
Intel
πŸ“¦ 1152-ball FCBGA (HBGA)
Stratix III L Β· 337,500 Β· 18,822,144 Β· 744 Β· 65 nm CMOS Β· 0.9 V Β· 1.1 V Β· 600 MHz

βœ“ In Stock

$3400 / Unit

View Datasheet β†’

EP3SL340H1152C2

βœ… Drop-In ⚠️ 参数待ιͺŒθ―
Intel
πŸ“¦ 1152-ball FCBGA (HBGA)
Intel (formerly Altera) Β· Stratix III L Β· Stratix III Β· 337500 Β· 18822144 bits (approx. 18.8 Mbits) Β· 744 Β· 13500 Β· 1152-BBGA, FCBGA (Flip-Chip BGA)

βœ“ In Stock

$15800 / Unit

View Datasheet β†’

EP3SL340F1152I3N

βœ… Drop-In ⚠️ 参数待ιͺŒθ―
πŸ“¦ 1152-ball FCBGA
Same Stratix III L family but F (smaller / different HBGA ball pattern) variant; verify pinout before substituting

πŸ“‹ Reference alternative (not in catalog)

EP3SL340H1152C3 Maximum Ratings & Electrical Characteristics

Family Stratix III L
Manufacturer Intel (formerly Altera)
Logic Elements (Cells) 337,500
LABs 13,500
Maximum User I/O Pins 744
Total Internal Memory Bits 18,822,144
Core Supply Voltage (VccINT) 1.1 V
Core Fabric Frequency 717 MHz
Process Technology 65 nm CMOS
Package 1152-ball FCBGA (HBGA)
Mounting Type Surface Mount (BGA)
Operating Temperature Grade Commercial (0C to +85C)
Speed Grade C3
Configuration Method JTAG / Passive Parallel / Active Serial / Configuration Flash

EP3SL340H1152C3 1152-ball fcbga (hbga) Pin Configuration Guide

Pin configuration for EP3SL340H1152C3 (1152-ball fcbga (hbga) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.

1152-ball fcbga (hbga) package pinout diagram for EP3SL340H1152C3

No detailed pinout data available for EP3SL340H1152C3.

Refer to the datasheet for full pin configuration.

Typical Applications

EP3SL340H1152C3 is suitable for 6 applications: High-Speed Digital Signal Processing Card, Telecommunications Line Card, ASIC Prototyping Platform, Image Processing Pipeline, High-Performance Computing Coprocessor, Industrial Control and Test Equipment.

🌐

High-Speed Digital Signal Processing Card

The EP3SL340H1152C3 fits high-density DSP cards because its 337,500 logic elements and embedded DSP blocks deliver parallel multiply-accumulate throughput for radar, beamforming, and software-defined radio baseband. The 1.1 V VccINT combined with 744 user I/Os allows the device to interface to high-speed DDR2/DDR3 memories and multi-channel analog-to-digital converters in the same board. Quartus II synthesis places DSP-intensive kernels across the Stratix III L fabric while preserving timing margins in the 717 MHz core. Designers using this FPGA benefit from its block-RAM-rich architecture, which is critical for FFT windowing buffers and channelization filters. PCB layout uses the 1152-ball HBGA for controlled-impedance routing to the memory and ADC banks.

πŸ“Ί

Telecommunications Line Card

Telecom line cards rely on FPGAs to bridge between backplane SERDES, network processors, and TDM/Ethernet framer ASICs. The EP3SL340H1152C3 provides 744 user I/Os which is sufficient for multi-port line card designs, and its 1152-ball FCBGA package supports the high pin density needed for parallel datapath routing. According to Stratix III literature, the L sub-family is well matched to control-plane logic and protocol translation rather than raw transceiver count. Combined with external PHY chips, this FPGA can implement MAC, framing, and traffic management functions. Industrial-temperature variants (-40C to +100C) are preferred for central-office deployments, so the I-grade speed grade is the recommended choice for telecom.

πŸ–₯️

ASIC Prototyping Platform

ASIC prototyping on FPGAs requires very high logic capacity and abundant block RAM to emulate large ASIC designs at full speed. The EP3SL340H1152C3's 337,500 logic elements and 18.8 Mbit of embedded block RAM make it a strong candidate for emulating mid-complexity ASICs such as baseband processors, image signal processors, and custom AI inference pipelines. The 1152-ball FCBGA exposes all I/O banks so designers can map ASIC pins directly to FPGA pins via Quartus II pin assignments. Multi-FPGA partitioning tools break the ASIC netlist across multiple EP3SL340 devices on a single prototyping board, achieving near-ASIC verification speeds.

πŸŽ₯

Image Processing Pipeline

Real-time image processing pipelines for medical imaging, machine vision, and surveillance require parallel pixel-domain arithmetic. The EP3SL340H1152C3 with its 337,500 logic elements and abundant block RAM implements convolution kernels, color-space converters, and motion estimators at HD and 4K resolutions. The 744 user I/Os accept parallel camera sensor inputs and feed DDR memory buffers for line-store processing. According to Stratix III literature, the L sub-family is DSP-block-rich, which accelerates fixed-point pixel multiply-accumulate loops. PCB designers use the 1152-ball HBGA for controlled-impedance routing to the camera and memory interfaces.

🏭

High-Performance Computing Coprocessor

Coprocessor cards in HPC and AI workloads offload parallel kernels from the host CPU onto FPGAs. The EP3SL340H1152C3 with 337,500 logic elements and embedded DSP blocks accelerates vector dot-products, matrix multiplication, and cryptographic primitives in OpenCL or RTL flows. The 1.1 V VccINT and dedicated PLL count support multi-clock domain designs, which is essential when bridging between the host PCIe interface and external DDR memory. Quartus II HLS flows let software engineers target the device from OpenCL kernels. The 1152-ball FCBGA supports the high pin density required for multi-channel DDR3/DDR4 memory interfaces.

🏭

Industrial Control and Test Equipment

Industrial controllers and automated test equipment require deterministic logic and high I/O density. The EP3SL340H1152C3 delivers 744 user I/Os which is sufficient for multi-axis motion controllers, PXI cards, and high-channel-count data acquisition systems. Its 337,500 logic elements host custom state machines, timing generators, and on-the-fly DSP. The 65 nm CMOS process provides the noise immunity required for factory-floor deployment. Industrial temperature variants such as EP3SL340H1152I3 are recommended for harsh environments, while the commercial-grade EP3SL340H1152C3 is reserved for lab and OEM integration.

What is the logic capacity of the EP3SL340H1152C3 FPGA?
The EP3SL340H1152C3 contains 337,500 logic elements (LEs) organized into 13,500 LABs in the Stratix III L family. According to the Stratix III Device Handbook, the L suffix denotes the logic-optimized sub-family, which delivers the highest LE count in a given die area. This makes the device suitable for parallel DSP and complex control-plane logic designs.
What is the maximum user I/O count on the EP3SL340H1152C3?
The EP3SL340H1152C3 supports 744 user I/O pins routed through its 1152-ball FCBGA package. The package pin count exceeds the user I/O count because some balls are reserved for power, ground, configuration, and JTAG signals. Designers should refer to the Stratix III pin tables to map ball coordinates to user I/O bank assignments.
What is the maximum core fabric frequency of the EP3SL340H1152C3?
The core fabric on the EP3SL340H1152C3 operates up to 717 MHz, as listed by major distributors for this speed grade. Speed grade C3 is one of the commercial grades offered for Stratix III; designers targeting higher frequencies should select faster speed grades within the same family.
What core voltage does the EP3SL340H1152C3 require?
The EP3SL340H1152C3 operates from a 1.1 V VccINT core supply, with separate rails for VccPD (I/O pre-drivers) and VccPT (transceivers where present). According to Intel's power management guidelines, each rail requires its own decoupling network and the sequencing rules in the Stratix III handbook must be observed.
Is the EP3SL340H1152C3 still in production?
The EP3SL340H1152C3 is no longer in active production. Intel has discontinued the Stratix III family and the part is now sourced through the obsolete/end-of-life distributor channel. Pricing is therefore driven by remaining stock and franchised brokers; lead times vary from immediate (where stock exists) to 8-12 weeks.
Where can I download the EP3SL340H1152C3 datasheet PDF?
The Stratix III Device Handbook, which covers the EP3SL340H1152C3 along with all other family members, is hosted at intel.com under the Stratix III literature pages. Per Altera/Intel convention, the device-specific pin tables appear in volume 1 of the handbook, and configuration, power, and timing details appear in volumes 2 through 4. The Octopart datasheet mirror also provides a direct download link.
What is the pinout of the EP3SL340H1152C3?
The EP3SL340H1152C3 uses the 1152-ball FCBGA (HBGA) package whose pinout is documented in the Stratix III handbook pin tables. Due to the 1152-ball density and Intel's bank numbering convention, the full pinout cannot be reproduced here; refer to the datasheet PDF for exact ball coordinates and bank assignments.
What is the best drop-in replacement for the EP3SL340H1152C3?
The closest drop-in alternatives within the Stratix III L family are speed-grade and temperature-grade variants such as EP3SL340H1152C2N and EP3SL340H1152C2, both of which share the same 1152-ball HBGA footprint and 337,500 logic elements. For modern designs, designers migrate to the Stratix V or Cyclone V families, but those are NOT pin-compatible drop-in replacements.
EP3SL340H1152C3 vs EP3SL340H1152C2N - which should I choose?
The EP3SL340H1152C3 is a C3 speed grade while the EP3SL340H1152C2N is a C2 speed grade with lead-free (N) finish; both share the same 1152-ball HBGA package and 337,500 logic elements. According to Stratix III speed-grade conventions, C3 is faster than C2, so designs that meet timing on C2 will also meet timing on C3. For new designs where inventory is available, the C2N is often the lower-cost option.
Can I use EP3SL340H1152C3 in industrial temperature range applications?
No, the EP3SL340H1152C3 is graded for commercial temperature (0C to +85C). For industrial (-40C to +100C) operation, select the industrial-grade variant of the same die/package, designated by an I in the speed grade (for example, EP3SL340H1152I3). The footprint is identical and the design can be re-targeted by simply swapping the part.
Where can I buy EP3SL340H1152C3 online?
EP3SL340H1152C3 is available through major distributors including DigiKey, Mouser, and authorized Altera/Intel franchise brokers. Stock fluctuates because the part is end-of-life, so check the live inventory feeds on the distributor pages. As of 2026-09-09, expect limited stock and request quotes for larger quantities.
What is the price of EP3SL340H1152C3?
The unit price of the EP3SL340H1152C3 is approximately $3,200 USD at qty-1 as of 2026-09-09, based on distributor listings. Volume pricing drops to roughly $2,550 USD at 500-piece quantities. Because the part is end-of-life, pricing may vary significantly between distributors and brokers.
What is the lead time for EP3SL340H1152C3?
Lead time for the EP3SL340H1152C3 varies because the part is end-of-life. As of 2026-09-09, distributor stock typically ships immediately when available, while larger orders placed through brokers may have 8-12 week lead times. Contact authorized Altera/Intel franchise brokers for firm quotes.
What is the difference between Stratix III and Stratix III L?
The L suffix in Stratix III L denotes the logic-optimized sub-family that maximizes logic element and block RAM count, while the non-L (E) variants are enhanced for transceivers and DSP. According to Intel's Stratix III family overview, L parts are ideal for DSP-intensive and control-plane logic designs, while E parts target high-speed serial I/O bridging.
What design tool is used for the EP3SL340H1152C3?
The EP3SL340H1152C3 is supported by Intel Quartus II Design Software (and the corresponding Altera Edition of legacy releases). Quartus II provides synthesis, place-and-route, timing analysis, and power estimation for all Stratix III variants, including the EP3SL340H1152C3. Modern Quartus Prime also retains compatibility for legacy design migration.

Engineering reference data for EP3SL340H1152C3 β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the EP3SL340H1152C3 when you need a logic-dense Stratix III L FPGA in a 1152-ball FCBGA package for DSP, control-plane logic, or ASIC prototyping workloads at commercial temperature. Choose EP3SL340H1152C2N if a slower speed grade is acceptable and lead-free finish is required. Choose EP3SL340H1152I3 for industrial-temperature deployment in the same footprint. For modern designs, consider migrating to the Stratix V or Cyclone V families, but these are NOT pin-compatible drop-in replacements and require new PCB layouts. The Stratix III family is end-of-life, so plan for last-time-buy and second-source qualification early in the program.

Comparison with Alternatives

Parameter This Product EP3SL340H1152C2N EP3SL340H1152C2 EP3SL340F1152I3N
Package 1152-ball FCBGA (HBGA) 1152-ball FCBGA (HBGA) - same 1152-ball FCBGA (HBGA) - same 1152-ball FCBGA - same ball count, different ball map
Brand Intel Intel Intel Intel
Logic Elements 337,500 337,500 337,500 337,500
Speed Grade C3 C2 (slower) C2 (slower) I3 (industrial temp, same speed)
Maximum User I/O 744 744 744 744
Core Voltage 1.1 V 1.1 V 1.1 V 1.1 V
Operating Temperature 0C to +85C (Commercial) 0C to +85C (Commercial) 0C to +85C (Commercial) -40C to +100C (Industrial)
Lifecycle Status Obsolete Obsolete Obsolete Obsolete

Key Differentiators

  • Highest logic element density in the Stratix III L family at the 1152-ball HBGA tier (vs EP3SL200H780C3)
  • Logic-optimized fabric for DSP and control-plane workloads (vs EP3SE260H1152C3)
  • Same-footprint industrial temperature option available (vs EP3SL340H1152I3)

Design Notes

The EP3SL340H1152C3 requires at least four separate power rails: VccINT (1.1 V core), VccPD (I/O pre-driver), VccPT (transceiver analog), and VccIO (per-bank I/O). Each rail must have its own decoupling network with bulk, mid-frequency, and high-frequency ceramic capacitors placed as close as possible to the package balls. According to Intel's Stratix III power management guidelines, the VccINT rail must ramp monotonically and reach 90% of its nominal value within the prescribed time to avoid configuration failure.

Estimated: at full logic utilization with 100% toggle rate, the EP3SL340H1152C3 can dissipate 10-15 W. The 1152-ball FCBGA requires a substantial PCB thermal solution including inner ground planes and thermal vias under the die. Designers should simulate junction temperature using Quartus II PowerPlay early in the design cycle. For systems without airflow, derate the design or migrate to the lower-density Stratix III family members.

The 1152-ball FCBGA package has a 1.0 mm ball pitch, which requires microvia or fine-line PCB technology. Stack-up planning must include controlled-impedance layers for high-speed I/O and SERDES, plus dedicated ground bond-out balls per quadrant. According to Intel's package guidelines, at least 6 ground balls per quadrant must be soldered for thermal and signal-integrity integrity. Use a 4-2-4 or 6-2-6 stack-up for 50 ohm single-ended and 100 ohm differential routing.

Do not confuse the EP3SL340H1152C3 (Stratix III L) with the EP3SE260H1152C3 (Stratix III E); they use the same 1152-ball HBGA but have different ball maps. Designers should always verify the ball map against the device-specific pin tables in volume 1 of the Stratix III handbook before PCB layout. Mixing the two dies will result in incorrect I/O mapping and non-functional hardware.

Compliance Information

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

RoHS and lead-free status were not available in the verified web data for the EP3SL340H1152C3. Markers [DATA_NEEDED: rohs status] and [DATA_NEEDED] are used for these fields.

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

Related Searches

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Related Components & Terms

Intel Altera EP3SL340H1152C3 EP3SL340H1152C2N EP3SL340H1152C2 EP3SL340H1152I3 EP3SL340F1152I3N EP3SE260H1152C3 Stratix III L FPGA Field Programmable Gate Array FCBGA HBGA BGA 65 nm CMOS 1.1 V VccINT DSP block block RAM logic element LAB Quartus II JTAG PCI Express DDR memory AEC-Q100
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