EPM3512AFC256-10 - MAX 3000A CPLD, 512 Macrocells | Intel / Altera
MPN: EPM3512AFC256-10 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.65 | $256.50 |
| 100 | $22.8 | $2,280.00 |
| 500 | $19.95 | $9,975.00 |
| 1,000 | $17.5 | $17,500.00 |
EPM3512AFC256-10 Overview
What is a CPLD? A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple SPLDs/glue-logic PALs and full FPGAs. The hierarchy runs: programmable logic -> SPLD -> CPLD -> FPGA -> programmable logic device family. CPLDs use a sum-of-products architecture with on-chip EEPROM or flash, providing instant-on behavior, deterministic timing, and robust pin-to-pin delays β ideal for bus bridging, address decoding, I/O expansion, and control logic where FPGAs are overkill. The MAX architecture specifically combines high-density logic with predictable interconnect delays.
Key features include 10,000 usable gates, 32 macrocells per LAB, 3.3-V core and I/O supply with 5-V tolerant I/O, support for IEEE Std. 1532 concurrent ISP across vendors, and JTAG boundary-scan testing. The 256-ball FCBGA package enables dense board layouts for high I/O count applications. Pin-to-pin delays of 10 ns make the device suitable for synchronous interface glue logic at moderate clock rates.
The MAX 3000A architecture employs a continuous interconnect scheme routing signals through the entire chip via fast logic paths between LABs. Built on advanced CMOS EEPROM technology, the device is non-volatile β programmed configuration is retained through power cycles without external boot memory, distinguishing it from SRAM-based FPGAs that require external configuration storage.
Typical applications include bus interface bridging, peripheral control logic in industrial and embedded systems, address decoding and interrupt management in microcontroller designs, state machine implementation in motor control, and I/O expansion for ASICs and processors. The combination of non-volatile storage, JTAG ISP, and high I/O count makes the device attractive for production volume glue-logic consolidation.
When designing with this device, ensure your JTAG chain ordering is correct if multiple devices are in series, since IEEE Std. 1149.1 boundary-scan requires TDI/TDO daisy-chain discipline. Verify I/O bank voltage compatibility with mixed 3.3-V and 5-V peripherals, and confirm that 87 MHz counter speeds meet timing margin for your target application.
This page synthesizes distributor pricing, drop-in MAX 3000A alternatives, and practical CPLD design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for EPM3512AFC256-10 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 EPM3512AFC256-10 (same form factor and footprint) β differing in Package, Programming Interface, Operating Temperature, Speed Grade, Usable Gates.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EPM3512AFC256-10N
β Drop-Inβ In Stock
$43.22 / Unit
View Datasheet βEPM3512AFC256-7
β Drop-Inβ In Stock
$58.4 / Unit
View Datasheet βEPM3256AFC256-10
β Drop-Inβ In Stock
$19.95 / Unit
View Datasheet βEPM3256AFC256-10N
β Drop-Inβ In Stock
$25.95 / Unit
View Datasheet βEPM3512AFC256-10 Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Macrocells | 512 |
| Logic Array Blocks (LABs) | 16 |
| Usable Gates | 10,000 |
| Maximum I/O Pins | 208 |
| Pin-to-Pin Delay (tPD) | 10 ns |
| Maximum Counter Frequency | 87 MHz |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Voltage Tolerance | 5-V tolerant |
| Programmable Technology | CMOS EEPROM |
| In-System Programmability | Yes (IEEE Std. 1149.1 JTAG / IEEE Std. 1532) |
| Package | 256-pin FBGA |
| Pin Count | 256 |
| Mounting Type | Surface Mount |
| RoHS Status | unknown |
| Architecture | MAX (Multiple Array matriX) EEPROM-based |
EPM3512AFC256-10 256-pin fbga Pin Configuration Guide
Pin configuration for EPM3512AFC256-10 (256-pin fbga 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.
No detailed pinout data available for EPM3512AFC256-10.
Refer to the datasheet for full pin configuration.
Typical Applications
EPM3512AFC256-10 is suitable for 6 applications: Microcontroller Bus Interface Bridging, Address Decoding and Chip Select Logic, Industrial Motor Control State Machines, Glue Logic Consolidation in ASIC Replacements, Peripheral I/O Expansion for Processors, JTAG-Based Boundary-Scan Test Infrastructure.
Microcontroller Bus Interface Bridging
The EPM3512AFC256-10's 512 macrocells and 208 I/O pins make it ideal for bridging between legacy 8/16-bit microcontrollers and modern 32-bit processors with mismatched bus widths, voltage levels, or protocols. The device sits between the host processor and peripheral buses, performing address mapping and protocol translation in hardware. With 10 ns pin-to-pin delay it easily meets typical MCU peripheral timing budgets, and the JTAG ISP interface allows in-field firmware updates. Placed near the bus connectors on the PCB with bulk 3.3-V decoupling; unlike an FPGA it boots instantly from EEPROM without external configuration memory, simplifying BOM and reducing board area.
Recommended
Address Decoding and Chip Select Logic
The EPM3512AFC256-10's sum-of-products MAX architecture excels at generating chip-select signals, interrupt vectors, and memory bank switching logic for systems with multiple peripherals sharing a common bus. Its 512 macrocells easily implement dozens of independent decode equations, and the deterministic 10 ns pin-to-pin delay ensures clean, glitch-free chip selects that prevent bus contention. The 3.3-V core with 5-V tolerant I/Os interfaces seamlessly to legacy 5-V peripherals alongside 3.3-V logic, eliminating level shifters. Placed between the address bus and peripheral CS pins with bypass caps on every VCC pin.
Recommended
Industrial Motor Control State Machines
In industrial motor drive and motion control systems, the EPM3512AFC256-10 implements deterministic state machines for PWM generation, commutation sequencing, and fault handling. The 87 MHz maximum counter frequency supports high-resolution PWM timing, while the 10 ns propagation delay ensures fast fault response critical for IGBT/MOSFET protection. The non-volatile EEPROM configuration survives harsh industrial environments and brown-out events, and the JTAG boundary-scan capability supports in-circuit test for high-reliability manufacturing. Combined with 208 I/Os, the device manages multiple encoder inputs, gate drive signals, and protection interlays.
Recommended
Glue Logic Consolidation in ASIC Replacements
The EPM3512AFC256-10 is frequently used to replace discrete 74-series logic gates, latches, and bus drivers scattered across legacy designs, consolidating random logic into a single programmable device. With 10,000 usable gates and 512 macrocells, the device can absorb entire glue-logic schematics, reducing board area and improving reliability. The JTAG ISP allows board-level rework of logic functions without respinning the PCB, and the FBGA-256 package integrates hundreds of logic functions into a footprint smaller than dozens of SOIC packages. Particularly valuable when modernizing discontinued ASIC functions or adding field-configurable logic.
Recommended
Peripheral I/O Expansion for Processors
When a host processor lacks sufficient GPIO or peripheral interfaces, the EPM3512AFC256-10 provides 208 user I/O pins that can be software-configured as inputs, outputs, or special function pins (UART, SPI, I2C bit-banging, PWM). The CPLD reads/writes I/O registers via a parallel memory-mapped interface to the host, freeing the host CPU from software bit-banging overhead. The deterministic timing and high I/O count make it suitable for industrial control panels, instrumentation front-ends, and test equipment requiring extensive front-panel controls. EEPROM non-volatility means I/O configuration is preserved through power cycles.
Recommended
JTAG-Based Boundary-Scan Test Infrastructure
The EPM3512AFC256-10 implements IEEE Std. 1149.1 boundary-scan chains for board-level interconnect testing, allowing manufacturing ATE to detect opens, shorts, and stuck-at faults without bed-of-nails fixtures. With up to 208 I/O pins brought into the JTAG scan chain, the device captures interconnect integrity between complex digital ICs on dense PCBs. The IEEE Std. 1532 compliance also enables concurrent ISP programming in multi-vendor JTAG chains. Particularly valuable for high-density BGA-based designs where physical probe access is impossible and boundary-scan becomes the only viable test methodology.
Recommended
Recommended Products Summary
Engineering reference data for EPM3512AFC256-10 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3512AFC256-10N | EPM3512AFC256-7 | EPM3256AFC256-10 | EPM3256AFC256-10N |
|---|---|---|---|---|---|
| Package | FBGA-256 | FBGA-256 | FBGA-256 | FBGA-256 | FBGA-256 |
| Brand | Altera / Intel | Altera / Intel | Altera / Intel | Altera / Intel | Altera / Intel |
| Family | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A |
| Macrocells | 512 | 512 | 512 | 256 (-50%) | 256 (-50%) |
| Pin-to-Pin Delay | 10 ns | 10 ns | 7.5 ns (-25%) | 10 ns | 10 ns |
| Maximum User I/O | 208 | 208 | 208 | 208 | 208 |
| Supply Voltage (VCCINT) | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Highest macrocell density in the MAX 3000A family (vs EPM3256AFC256-10)
- Industry-standard 256-ball FBGA with 208 user I/O (vs EPM3064ATC100-10N)
- EEPROM non-volatile configuration with instant-on (vs SRAM-based FPGAs (e.g. Cyclone series))
- IEEE Std. 1149.1 JTAG plus IEEE Std. 1532 concurrent ISP (vs PAL/GAL legacy devices)
Design Notes
Estimated: the FBGA-256 package typically exhibits theta_JA of approximately 25-35 C/W on a 4-layer JEDEC test board with thermal vias. At maximum toggle activity on 208 I/Os at 87 MHz, internal power dissipation may reach 1-2 W depending on I/O switching rates and capacitive loading. For industrial temperature operation (-40C to +85C ambient), keep junction temperature below 125C by providing adequate PCB thermal vias under the BGA and avoiding obstruction of natural convection. BGA packages rely entirely on PCB thermal dissipation since they cannot accommodate traditional heatsinks.
Place 0.1 uF decoupling capacitors as close as possible to every VCC and VCCIO pin pair of the FBGA-256 package; the BGA pin geometry makes this a routing challenge requiring careful escape planning. Add bulk 10-100 uF tantalum or polymer capacitors near the device for low-frequency supply stabilization. Route JTAG signals (TDI, TDO, TMS, TCK) with controlled impedance and keep traces short to ensure clean boundary-scan operation. Use a 4-layer or 6-layer PCB stack-up with dedicated ground and power planes adjacent to the BGA signal escape layer.
Critical pitfalls with the EPM3512AFC256-10: (1) IEEE Std. 1532 concurrent ISP requires correct JTAG chain TDI/TDO ordering when multiple devices share the JTAG bus β verify with boundary-scan tools before relying on field updates; (2) 5-V tolerant I/O is NOT 5-V supply β VCCIO must still be 3.3 V, only input thresholds and output drive tolerate 5-V signals; (3) BGA-256 requires X-ray inspection or AOI during assembly since hidden solder joints cannot be visually inspected; (4) NRND lifecycle means long-term production planning should include a last-time-buy phase.
Estimated: when driving multiple high-speed LVTTL/LVCMOS outputs simultaneously on the EPM3512AFC256-10, ground bounce can cause momentary logic-level violations on quiet outputs. To minimize ground bounce, distribute switching outputs across physical pin locations rather than clustering them, add series damping resistors (22-33 ohm) near the source on the fastest signals, and ensure the PCB ground plane is uninterrupted beneath the FBGA. For 87 MHz counter outputs, maintain controlled-impedance traces with characteristic impedance matched to your driver/receiver termination.
FBGA-256 escape routing requires careful via-in-pad or dog-bone fan-out planning. Use microvias (laser-drilled, 0.1 mm pad) on at least the top layer for the inner BGA rows to escape to inner signal layers. Maintain 50-ohm single-ended trace impedance for JTAG and clock signals, 90-ohm differential for any LVDS pairs. Place the JTAG connector or header within 50 mm of the device to keep TMS/TCK traces short; long JTAG traces degrade programming reliability and boundary-scan margin.
Compliance Information
RoHS and lead-free status not explicitly stated in the verified web data; EPM3512AFC256-10N variant typically denotes lead-free per Altera naming convention, but confirm with the manufacturer datasheet ordering-info table before assuming compliance for your application. AEC-Q100 not applicable for commercial-grade CPLD.
