EPM3512AQC208-10 - MAX 3000A CPLD, 512 Macros, 172 IOs, 208-PQFP
MPN： EPM3512AQC20810 ✗ 停產EPM3512AQC20810 概覽
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the deterministic timing of PAL/GAL architecture with the density of multiple logic blocks connected by a programmable interconnect matrix. Within the broader taxonomy, the CPLD sits between simple PLDs (PAL/GAL) and FPGAs: like FPGAs, CPLDs provide combinational and sequential logic density; like PALs, they offer predictable timing (no SRAM-based configuration) and instant power-on operation. The MAX 3000A family is Altera's classic 3.3 V CPLD line, and the EPM3512A is the highest-density member at 512 macro cells.
Key features include 512 macro cells (equivalent to ~10,000 usable gates), 172 user I/Os, 16 logic array blocks (LABs), and 3.3 V in-system programmability through the built-in JTAG interface. The -10 speed grade specifies a 10 ns tPD (pin-to-pin delay) and a 132 MHz maximum internal frequency, suitable for PCI-compatible bus interfaces, address decoding, bus arbitration, and glue-logic consolidation. The device supports multi-voltage I/O allowing operation in mixed 3.3 V / 5.0 V systems.
Architecturally, the EPM3512A uses a MAX (Multiple Array matriX) structure of interconnected LABs with a global programmable interconnect array (PIA). Each macro cell contains a programmable AND/OR array with a configurable flip-flop, allowing implementation of combinational logic, registered logic, or pure I/O. The on-chip EEPROM configuration memory provides 100 reprogram/erase cycles minimum and 10+ year data retention, eliminating external configuration hardware.
Typical applications include PCI bus interface bridging (the -10 speed grade meets PCI Local Bus Specification Revision 2.2 timing requirements), address decoding and chip-select generation in microprocessor designs, bus arbitration and DMA control logic, glue-logic integration to consolidate discrete 74-series TTL/CMOS devices, and prototyping of ASIC replacement logic. The instant-on non-volatile configuration makes it well-suited for safety-critical systems where SRAM-based FPGAs cannot be used.
When designing with this device, allocate sufficient decoupling (100 nF and 10 µF) near each VCC pin pair, and observe the 3.3 V supply tolerance (±10%). Use the JTAG chain (TCK/TMS/TDO/TDI) for both ISP and boundary-scan test. The 208-pin PQFP package requires careful PCB layout with 0.5 mm pitch traces; verify the land pattern matches JEDEC MS-022.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for engineers working with the EPM3512AQC208-10 — information not assembled on any single distributor or manufacturer page.
直接替換替代品，適用於 EPM3512AQC20810 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EPM3512AQC20810 （相同外形與佔位） — 差異在於 Package, Operating Temperature, Logic Array Blocks (LABs), Usable Gates, Speed Grade.
EPM3512AQC208-10N
✅ 直接替換聯絡詢價
查看資料表 →EPM3512AQC208-7N
✅ 直接替換聯絡詢價
查看資料表 →EPM3512AQC208-15N
✅ 直接替換聯絡詢價
查看資料表 →EPM3256AQC208-10N
✅ 直接替換聯絡詢價
查看資料表 →EPM3512AQC208-10S
✅ 直接替換聯絡詢價
查看資料表 →EPM3128ATC100-10N
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPM3512AQC20810 最大額定值與電氣特性
| Family | MAX 3000A |
| Logic Type | CPLD (EEPROM-based, non-volatile) |
| Macro Cells | 512 |
| User I/Os | 172 |
| Logic Array Blocks (LABs) | 16 |
| Usable Gates (equivalent) | 10000 |
| 封裝 | 208-pin PQFP (PQ208) |
| Speed Grade | -10 (tPD = 10 ns) |
| Propagation Delay (tPD) | 10 ns |
| Maximum Internal Frequency | 132 MHz |
| Core Supply Voltage (VCCINT) | 3.3 V |
| I/O Supply Voltage (VCCIO) | 3.3 V |
| In-System Programmability | Yes (IEEE 1149.1 JTAG, 3.3 V ISP) |
| PCI Compliance | PCI Local Bus Specification Revision 2.2 compliant |
| Operating Temperature (commercial) | 0 °C to +70 °C |
| Process Technology | 0.30 µm CMOS EEPROM |
| Configuration Memory | On-chip EEPROM, non-volatile, 100+ cycles, 10+ year retention |
EPM3512AQC20810 208-pin pqfp (pq208) 腳位配置指南
EPM3512AQC20810（208-pin pqfp (pq208) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： EPM3512AQC20810.
請參閱 資料表 以查看完整腳位配置。
典型應用
EPM3512AQC20810 適用於 6 應用s: PCI Bus Interface and Address Decoding, Microprocessor Glue Logic Consolidation, Industrial Control and Factory Automation, Legacy ASIC Replacement and Logic Integration, Telecommunications Backplane and Bus Bridging, Test and Measurement Equipment.
PCI Bus Interface and Address Decoding
The EPM3512AQC208-10's -10 speed grade (10 ns tPD, 132 MHz fMAX) is explicitly certified by Altera as compliant with the PCI Local Bus Specification Revision 2.2, making it ideal for PCI target/master interface logic, address decoding, and command/byte-enable generation. With 172 user I/Os, a single EPM3512A can decode the full 32-bit PCI address bus and generate chip selects for multiple peripherals. The 512 macro cells comfortably accommodate PCI state machines, parity logic, and interrupt controllers. Compared with discrete 74-series decoders, the CPLD consolidates tens of TTL packages into one device, reducing board area, improving signal integrity, and simplifying revision via in-system JTAG programming — a major advantage in legacy industrial-PCI designs.
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Microprocessor Glue Logic Consolidation
The EPM3512AQC208-10 is widely used to replace discrete 74HC/74F-series TTL glue logic in microprocessor designs — address decoding, chip-select generation, wait-state insertion, and bus arbitration. With 512 macro cells and 172 I/Os, it can replace 20-30 discrete logic packages per board, dramatically reducing PCB area, BOM count, and assembly cost. The 3.3 V core with 5 V tolerant I/Os allows direct interface to 5 V microprocessors, while the EEPROM-based non-volatile configuration provides instant-on operation with no boot time. The 208-pin PQFP gives enough I/Os to handle 32-bit address plus 32-bit data buses plus control signals in a single device, and the JTAG interface simplifies board test and field upgrades.
推薦
Industrial Control and Factory Automation
The EPM3512AQC208-10 is well-suited to industrial-control applications — PLC I/O expansion, motor-control interfaces, sensor multiplexing, and legacy fieldbus bridging. Its 172 user I/Os can directly drive dozens of opto-isolated inputs and outputs, while the 512 macro cells handle state machines for sequencing, fault detection, and protocol conversion. The non-volatile EEPROM configuration provides instant-on deterministic behavior critical to safety interlocks, and the 0-70 °C commercial temperature range covers most factory-floor enclosures. Although now EOL, the part remains in service across thousands of legacy industrial installations where redesign cost is prohibitive. JTAG-based in-system programmability enables field firmware updates without removing the board from the chassis.
推薦
Legacy ASIC Replacement and Logic Integration
The EPM3512AQC208-10 is a classic choice for replacing obsolete gate-array ASICs and consolidating scattered discrete logic into a single programmable device. With approximately 10,000 usable gates and 512 macro cells, it can integrate what previously required a small ASIC plus 10-20 SSI/MSI packages. The 208-pin PQFP footprint exposes 172 I/Os — sufficient for most replacement designs. The EEPROM-based configuration means prototypes can ship the day the design is verified, then iterate via JTAG without respinning boards. Altera's Quartus II design environment (legacy, free) supports the device, and third-party simulation libraries remain available. This application is particularly valuable for sustaining production of legacy equipment with no forward-compatible ASIC alternative.
推薦
Telecommunications Backplane and Bus Bridging
The EPM3512AQC208-10 is used in telecom backplanes for bus bridging between legacy buses (PCI, VME, ISA) and modern processors, as well as for clock distribution, frame synchronization, and line-interface control. The 172 I/Os handle wide parallel buses plus control and status signals, while the 512 macro cells implement protocol conversion state machines. The 10 ns tPD of the -10 speed grade is fast enough for most telecom control-plane timing, and the JTAG interface simplifies board-level test in high-density backplane designs. Despite EOL status, the device remains in service across deployed telecom infrastructure where reliability and deterministic timing outweigh the benefit of migrating to newer FPGAs. The MAX 3000A's instant-on non-volatile configuration is critical for systems that must boot without external configuration devices.
推薦
Test and Measurement Equipment
The EPM3512AQC208-10 fits naturally into test-and-measurement instruments — logic analyzers, protocol exercisers, switch-matrix controllers, and custom ATE fixtures — where deterministic timing and instant-on behavior are required. The 172 I/Os drive dozens of test points simultaneously, while the 512 macro cells handle pattern generation, response comparison, and trigger sequencing. The JTAG interface enables boundary-scan test integration for PCB verification. The non-volatile EEPROM configuration ensures the instrument boots to a known state without depending on external configuration devices — important in safety-critical test setups. Although the part is EOL, it remains specified in legacy test equipment documentation, and the same MAX 3000A family is broadly available on the secondary market for repair and refurbishment of deployed instruments.
推薦
推薦產品摘要
工程參考資料，適用於 EPM3512AQC20810 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | EPM3512AQC208-10N | EPM3512AQC208-7N | EPM3512AQC208-15N | EPM3256AQC208-10N | EPM3512AQC208-10S |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | PQFP-208 (PQ208, 0.5 mm pitch) | PQFP-208 (PQ208, 0.5 mm pitch) - same | PQFP-208 (PQ208, 0.5 mm pitch) - same | PQFP-208 (PQ208, 0.5 mm pitch) - same | PQFP-208 (PQ208, 0.5 mm pitch) - same | PQFP-208 (PQ208, 0.5 mm pitch) - same |
| Macro Cells | 512 | 512 | 512 | 512 | 256 (-50%) | 512 |
| User I/Os | 172 | 172 | 172 | 172 | 172 | 172 |
| Speed Grade (tPD) | -10 (10 ns) | -10 (10 ns) | -7 (7 ns, faster) | -15 (15 ns, slower) | -10 (10 ns) | -10 (10 ns) |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | Obsolete / EOL | Obsolete / EOL | Obsolete / EOL | Obsolete / EOL | Obsolete / EOL | Obsolete / EOL |
主要差異化特點
- Highest-density MAX 3000A member in PQFP-208 (對比EPM3256AQC208-10N)
- Instant-on non-volatile configuration (對比MAX II EPM240T100C5N)
- PCI Local Bus 2.2 certified timing (對比EPM3064ATC100-10)
設計說明
The 208-pin PQFP (PQ208) uses 0.5 mm pitch leads on a 28 mm × 28 mm body. Route all signals on inner layers with via-in-pad or short dog-bone fan-outs; escape traces from inner-lead rows under the package body. Per the Altera MAX 3000A datasheet, place 100 nF decoupling capacitors as close as possible to every VCCINT/VCCIO pin pair, and add a single 10 µF bulk capacitor near the supply entry. Use a 4-layer PCB with dedicated ground and power planes to meet the 132 MHz internal fMAX with clean signal integrity.
Do not confuse the EPM3512AQC208-10 (commercial, 0-70 °C) with the EPM3512AQI208-10 (industrial, -40 to +85 °C) — they share the same die but different temperature grades. Do not exceed 3.6 V on VCCINT or VCCIO — over-voltage permanently damages the EEPROM cells. When programming via JTAG, ensure the TCK frequency does not exceed 10 MHz per the IEEE 1149.1 spec for MAX 3000A. Verify the JTAG chain order (TCK → TMS → TDI → TDO) before in-system programming to avoid contention with other JTAG devices on the chain.
For PCI-compliant designs using the EPM3512AQC208-10, observe the 10 ns tPD timing budget across the full board: signal trace length should not exceed 25 mm on the PCI bus segment, and the bus must be terminated per the PCI Local Bus Specification Revision 2.2. Place the CPLD adjacent to the PCI connector with matched-length clock traces. Use the global clock pins (GCLK1-GCLK3) for all PCI clock inputs; do not route clocks through regular I/O pins, which adds 2-4 ns skew and breaks PCI timing.
合規資訊
RoHS compliance not stated in provided Verified Web Data — original EPM3512AQC208-10 datasheet does not explicitly declare RoHS status; lead-free N-suffix variants (EPM3512AQC208-10N) are RoHS-compliant per Altera part numbering convention. AEC-Q100 not applicable (CPLD not automotive-qualified). Conflict-mineral and REACH status unknown from provided data.
