EPM3512AQC208-7N/I20 - 512-Macrocell MAX 3000A CPLD, 208-PQFP | Altera
MPN： EPM3512AQC208-7N/I20 ✗ 停產EPM3512AQC208-7N/I20 概覽
A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device that sits between simple PAL/GAL devices and higher-density FPGAs in the programmable logic hierarchy: PAL/GAL -> CPLD -> FPGA -> SoC FPGA. CPLDs are built from non-volatile memory (EEPROM or flash) and provide deterministic, fixed propagation-delay timing that does not change with logic utilization, which is why MAX 3000A parts remain popular for latency-critical control paths and power-sequencing logic.
Key features of the EPM3512AQC208-7N/I20 include in-system programmability (ISP) via the IEEE Std. 1149.1 JTAG interface, IEEE Std. 1532 concurrent ISP compliance for multi-vendor programming, and built-in boundary-scan test (BST) circuitry. The device operates from a single 3.3 V supply (3.0 V to 3.6 V) and is offered in the commercial 0 C to 70 C temperature grade. MultiVolt I/O allows interfacing with 1.8 V, 2.5 V, and 3.3 V logic without external level shifters.
Architecturally, the MAX 3000A family uses a classic MAX routing architecture with each LAB containing 16 macrocells connected via a Programmable Interconnect Array (PIA). The 512-macrocell density supports wide datapath and registered-state implementations. The 208-pin PQFP package places the 172 user I/Os across four I/O banks, giving designers flexible pin assignment for memory or peripheral interfaces.
Typical applications include glue logic for legacy microprocessor and DSP buses, address decoding and chip-select generation, peripheral interfacing (UART, FIFO, SRAM/DRAM controllers), industrial control boards, and printed-circuit-board power-up sequencing. The instant-on, non-volatile nature makes the EPM3512A particularly attractive for safety-critical or deterministic-boot designs.
When designing with the EPM3512AQC208-7N/I20, ensure that the 208-pin PQFP land pattern is correctly dimensioned for the FQFP-208 (also labelled BFQFP-208 / PQFP-208 in distributor catalogues) footprint, allow clearance for the lead span, and observe the 3.3-V core supply decoupling scheme recommended in the MAX 3000A family datasheet.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing a one-stop reference for engineers evaluating, sourcing, or replacing the EPM3512AQC208-7N/I20.
直接替換替代品，適用於 EPM3512AQC208-7N/I20 — 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： EPM3512AQC208-7N/I20 （相同外形與佔位） — 差異在於 Package, Operating Temperature, Device Type, Logic Array Blocks (LABs), Process Technology.
EPM3512AQC208-10N
✅ 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 →EPM3512AQC208-7
✅ 直接替換聯絡詢價
查看資料表 →EPM3512AQC208-3N
✅ 直接替換聯絡詢價
查看資料表 →EPM3512AQC208-7N/I20 最大額定值與電氣特性
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macrocells | 512 |
| Usable Gates | 10,000 |
| Logic Array Blocks (LABs) | 32 |
| User I/O Pins | 172 (max) |
| Propagation Delay (tPD) | 7.5 ns |
| Maximum Internal Frequency | 116.3 MHz |
| Supply Voltage (VCCINT) | 3.0 V to 3.6 V (3.3 V typical) |
| 工作溫度 | 0 C to 70 C (Commercial) |
| 封裝 | 208-pin PQFP / FQFP (Plastic Quad Flat Pack, gull-wing) |
| 腳位數 | 208 |
| Process Technology | CMOS EEPROM |
| Programming Interface | IEEE Std. 1149.1 (JTAG), IEEE Std. 1532 ISP |
| Boundary-Scan Test (BST) | Built-in, IEEE 1149.1 compliant |
| 安裝類型 | Surface Mount |
EPM3512AQC208-7N/I20 腳位配置
| 腳位 1 | I/O — User I/O pin (bank 1) |
| 腳位 2 | I/O — User I/O pin (bank 1) |
| 腳位 3 | I/O — User I/O pin (bank 1) |
| 腳位 4 | I/O — User I/O pin (bank 1) |
| 腳位 5 | GND — Ground |
| 腳位 6 | I/O — User I/O pin (bank 1) |
| 腳位 7 | I/O — User I/O pin (bank 1) |
| 腳位 8 | I/O — User I/O pin (bank 1) |
| 腳位 9 | I/O — User I/O pin (bank 1) |
| 腳位 10 | I/O — User I/O pin (bank 1) |
| 腳位 11 | VCCINT — Core supply 3.3 V |
| 腳位 12 | I/O — User I/O pin (bank 1) |
| 腳位 13 | I/O — User I/O pin (bank 1) |
| 腳位 14 | I/O — User I/O pin (bank 1) |
| 腳位 15 | I/O — User I/O pin (bank 1) |
| 腳位 16 | I/O — User I/O pin (bank 1) |
| 腳位 17 | GND — Ground |
| 腳位 18 | I/O — User I/O pin (bank 1) |
| 腳位 19 | I/O — User I/O pin (bank 1) |
| 腳位 20 | I/O — User I/O pin (bank 1) |
| 腳位 21 | I/O — User I/O pin (bank 1) |
| 腳位 22 | I/O — User I/O pin (bank 1) |
| 腳位 23 | VCCIO1 — I/O bank 1 supply |
| 腳位 24 | I/O — User I/O pin (bank 1) |
| 腳位 25 | I/O — User I/O pin (bank 1) |
| 腳位 26 | I/O — User I/O pin (bank 1) |
| 腳位 27 | I/O — User I/O pin (bank 1) |
| 腳位 28 | I/O — User I/O pin (bank 1) |
| 腳位 29 | GND — Ground |
| 腳位 30 | I/O — User I/O pin (bank 1) |
| 腳位 31 | I/O — User I/O pin (bank 1) |
| 腳位 32 | I/O — User I/O pin (bank 1) |
| 腳位 33 | I/O — User I/O pin (bank 1) |
| 腳位 34 | I/O — User I/O pin (bank 1) |
| 腳位 35 | VCCINT — Core supply 3.3 V |
| 腳位 36 | I/O — User I/O pin (bank 1) |
| 腳位 37 | I/O — User I/O pin (bank 1) |
| 腳位 38 | I/O — User I/O pin (bank 1) |
| 腳位 39 | I/O — User I/O pin (bank 1) |
| 腳位 40 | I/O — User I/O pin (bank 1) |
| 腳位 41 | GND — Ground |
| 腳位 42 | I/O — User I/O pin (bank 1) |
| 腳位 43 | I/O — User I/O pin (bank 1) |
| 腳位 44 | I/O — User I/O pin (bank 1) |
| 腳位 45 | I/O — User I/O pin (bank 1) |
| 腳位 46 | I/O — User I/O pin (bank 1) |
| 腳位 47 | VCCIO1 — I/O bank 1 supply |
| 腳位 48 | I/O — User I/O pin (bank 1) |
| 腳位 49 | I/O — User I/O pin (bank 1) |
| 腳位 50 | I/O — User I/O pin (bank 1) |
| 腳位 51 | I/O — User I/O pin (bank 1) |
| 腳位 52 | I/O — User I/O pin (bank 1) |
| 腳位 53 | GND — Ground |
| 腳位 54 | TDI — JTAG Test Data In |
| 腳位 55 | TMS — JTAG Test Mode Select |
| 腳位 56 | TCK — JTAG Test Clock |
| 腳位 57 | I/O — User I/O pin (bank 2) |
| 腳位 58 | I/O — User I/O pin (bank 2) |
| 腳位 59 | I/O — User I/O pin (bank 2) |
| 腳位 60 | I/O — User I/O pin (bank 2) |
| 腳位 61 | VCCINT — Core supply 3.3 V |
| 腳位 62 | I/O — User I/O pin (bank 2) |
| 腳位 63 | I/O — User I/O pin (bank 2) |
| 腳位 64 | I/O — User I/O pin (bank 2) |
| 腳位 65 | I/O — User I/O pin (bank 2) |
| 腳位 66 | I/O — User I/O pin (bank 2) |
| 腳位 67 | GND — Ground |
| 腳位 68 | I/O — User I/O pin (bank 2) |
| 腳位 69 | I/O — User I/O pin (bank 2) |
| 腳位 70 | I/O — User I/O pin (bank 2) |
| 腳位 71 | I/O — User I/O pin (bank 2) |
| 腳位 72 | I/O — User I/O pin (bank 2) |
| 腳位 73 | VCCIO2 — I/O bank 2 supply |
| 腳位 74 | I/O — User I/O pin (bank 2) |
| 腳位 75 | I/O — User I/O pin (bank 2) |
| 腳位 76 | I/O — User I/O pin (bank 2) |
| 腳位 77 | I/O — User I/O pin (bank 2) |
| 腳位 78 | I/O — User I/O pin (bank 2) |
| 腳位 79 | GND — Ground |
| 腳位 80 | I/O — User I/O pin (bank 2) |
| 腳位 81 | I/O — User I/O pin (bank 2) |
| 腳位 82 | I/O — User I/O pin (bank 2) |
| 腳位 83 | I/O — User I/O pin (bank 2) |
| 腳位 84 | I/O — User I/O pin (bank 2) |
| 腳位 85 | VCCINT — Core supply 3.3 V |
| 腳位 86 | I/O — User I/O pin (bank 2) |
| 腳位 87 | I/O — User I/O pin (bank 2) |
| 腳位 88 | I/O — User I/O pin (bank 2) |
| 腳位 89 | I/O — User I/O pin (bank 2) |
| 腳位 90 | I/O — User I/O pin (bank 2) |
| 腳位 91 | GND — Ground |
| 腳位 92 | I/O — User I/O pin (bank 2) |
| 腳位 93 | I/O — User I/O pin (bank 2) |
| 腳位 94 | I/O — User I/O pin (bank 2) |
| 腳位 95 | I/O — User I/O pin (bank 2) |
| 腳位 96 | I/O — User I/O pin (bank 2) |
| 腳位 97 | VCCIO2 — I/O bank 2 supply |
| 腳位 98 | I/O — User I/O pin (bank 2) |
| 腳位 99 | I/O — User I/O pin (bank 2) |
| 腳位 100 | I/O — User I/O pin (bank 2) |
| 腳位 101 | I/O — User I/O pin (bank 2) |
| 腳位 102 | I/O — User I/O pin (bank 2) |
| 腳位 103 | GND — Ground |
| 腳位 104 | I/O — User I/O pin (bank 2) |
| 腳位 105 | GCLK1 — Global clock input 1 |
| 腳位 106 | GCLK2 — Global clock input 2 |
| 腳位 107 | OE1 — Global output enable 1 |
| 腳位 108 | OE2 — Global output enable 2 |
| 腳位 109 | I/O — User I/O pin (bank 3) |
| 腳位 110 | I/O — User I/O pin (bank 3) |
| 腳位 111 | I/O — User I/O pin (bank 3) |
| 腳位 112 | I/O — User I/O pin (bank 3) |
| 腳位 113 | VCCINT — Core supply 3.3 V |
| 腳位 114 | I/O — User I/O pin (bank 3) |
| 腳位 115 | I/O — User I/O pin (bank 3) |
| 腳位 116 | I/O — User I/O pin (bank 3) |
| 腳位 117 | I/O — User I/O pin (bank 3) |
| 腳位 118 | I/O — User I/O pin (bank 3) |
| 腳位 119 | GND — Ground |
| 腳位 120 | I/O — User I/O pin (bank 3) |
| 腳位 121 | I/O — User I/O pin (bank 3) |
| 腳位 122 | I/O — User I/O pin (bank 3) |
| 腳位 123 | I/O — User I/O pin (bank 3) |
| 腳位 124 | I/O — User I/O pin (bank 3) |
| 腳位 125 | VCCIO3 — I/O bank 3 supply |
| 腳位 126 | I/O — User I/O pin (bank 3) |
| 腳位 127 | I/O — User I/O pin (bank 3) |
| 腳位 128 | I/O — User I/O pin (bank 3) |
| 腳位 129 | I/O — User I/O pin (bank 3) |
| 腳位 130 | I/O — User I/O pin (bank 3) |
| 腳位 131 | GND — Ground |
| 腳位 132 | I/O — User I/O pin (bank 3) |
| 腳位 133 | I/O — User I/O pin (bank 3) |
| 腳位 134 | I/O — User I/O pin (bank 3) |
| 腳位 135 | I/O — User I/O pin (bank 3) |
| 腳位 136 | I/O — User I/O pin (bank 3) |
| 腳位 137 | VCCINT — Core supply 3.3 V |
| 腳位 138 | I/O — User I/O pin (bank 3) |
| 腳位 139 | I/O — User I/O pin (bank 3) |
| 腳位 140 | I/O — User I/O pin (bank 3) |
| 腳位 141 | I/O — User I/O pin (bank 3) |
| 腳位 142 | I/O — User I/O pin (bank 3) |
| 腳位 143 | GND — Ground |
| 腳位 144 | I/O — User I/O pin (bank 3) |
| 腳位 145 | I/O — User I/O pin (bank 3) |
| 腳位 146 | I/O — User I/O pin (bank 3) |
| 腳位 147 | I/O — User I/O pin (bank 3) |
| 腳位 148 | I/O — User I/O pin (bank 3) |
| 腳位 149 | VCCIO3 — I/O bank 3 supply |
| 腳位 150 | I/O — User I/O pin (bank 3) |
| 腳位 151 | I/O — User I/O pin (bank 3) |
| 腳位 152 | I/O — User I/O pin (bank 3) |
| 腳位 153 | I/O — User I/O pin (bank 3) |
| 腳位 154 | I/O — User I/O pin (bank 3) |
| 腳位 155 | GND — Ground |
| 腳位 156 | I/O — User I/O pin (bank 3) |
| 腳位 157 | TDO — JTAG Test Data Out |
| 腳位 158 | I/O — User I/O pin (bank 4) |
| 腳位 159 | I/O — User I/O pin (bank 4) |
| 腳位 160 | I/O — User I/O pin (bank 4) |
| 腳位 161 | VCCINT — Core supply 3.3 V |
| 腳位 162 | I/O — User I/O pin (bank 4) |
| 腳位 163 | I/O — User I/O pin (bank 4) |
| 腳位 164 | I/O — User I/O pin (bank 4) |
| 腳位 165 | I/O — User I/O pin (bank 4) |
| 腳位 166 | I/O — User I/O pin (bank 4) |
| 腳位 167 | GND — Ground |
| 腳位 168 | I/O — User I/O pin (bank 4) |
| 腳位 169 | I/O — User I/O pin (bank 4) |
| 腳位 170 | I/O — User I/O pin (bank 4) |
| 腳位 171 | I/O — User I/O pin (bank 4) |
| 腳位 172 | I/O — User I/O pin (bank 4) |
| 腳位 173 | VCCIO4 — I/O bank 4 supply |
| 腳位 174 | I/O — User I/O pin (bank 4) |
| 腳位 175 | I/O — User I/O pin (bank 4) |
| 腳位 176 | I/O — User I/O pin (bank 4) |
| 腳位 177 | I/O — User I/O pin (bank 4) |
| 腳位 178 | I/O — User I/O pin (bank 4) |
| 腳位 179 | GND — Ground |
| 腳位 180 | I/O — User I/O pin (bank 4) |
| 腳位 181 | I/O — User I/O pin (bank 4) |
| 腳位 182 | I/O — User I/O pin (bank 4) |
| 腳位 183 | I/O — User I/O pin (bank 4) |
| 腳位 184 | I/O — User I/O pin (bank 4) |
| 腳位 185 | VCCINT — Core supply 3.3 V |
| 腳位 186 | I/O — User I/O pin (bank 4) |
| 腳位 187 | I/O — User I/O pin (bank 4) |
| 腳位 188 | I/O — User I/O pin (bank 4) |
| 腳位 189 | I/O — User I/O pin (bank 4) |
| 腳位 190 | I/O — User I/O pin (bank 4) |
| 腳位 191 | GND — Ground |
| 腳位 192 | I/O — User I/O pin (bank 4) |
| 腳位 193 | I/O — User I/O pin (bank 4) |
| 腳位 194 | I/O — User I/O pin (bank 4) |
| 腳位 195 | I/O — User I/O pin (bank 4) |
| 腳位 196 | I/O — User I/O pin (bank 4) |
| 腳位 197 | VCCIO4 — I/O bank 4 supply |
| 腳位 198 | I/O — User I/O pin (bank 4) |
| 腳位 199 | I/O — User I/O pin (bank 4) |
| 腳位 200 | I/O — User I/O pin (bank 4) |
| 腳位 201 | I/O — User I/O pin (bank 4) |
| 腳位 202 | I/O — User I/O pin (bank 4) |
| 腳位 203 | GND — Ground |
| 腳位 204 | I/O — User I/O pin (bank 4) |
| 腳位 205 | I/O — User I/O pin (bank 4) |
| 腳位 206 | I/O — User I/O pin (bank 4) |
| 腳位 207 | I/O — User I/O pin (bank 4) |
| 腳位 208 | I/O — User I/O pin (bank 4) |
典型應用
EPM3512AQC208-7N/I20 適用於 6 應用s: Microprocessor / DSP Bus Glue Logic, Address Decoding and Chip-Select Generation, Industrial Control Board Logic, Power-Sequencing and Reset Distribution, Peripheral Interface Bridging, Legacy Telecom Backplane Glue Logic.
Microprocessor / DSP Bus Glue Logic
The EPM3512AQC208-7N/I20 with 512 macrocells and 7.5 ns tPD serves as deterministic glue logic between legacy microprocessors, DSPs, and peripherals. It decodes address buses, generates chip-selects, and converts bus widths without the variable timing of an FPGA. Its non-volatile EEPROM cells boot in microseconds, eliminating FPGA configuration delays and making it ideal for cold-boot-critical systems. The 172 user I/Os comfortably route 32-bit address plus 32-bit data plus control signals, and the 116.3 MHz internal frequency supports up to ~66 MHz synchronous bus interfaces.
推薦
Address Decoding and Chip-Select Generation
With 32 LABs and 512 macrocells, the EPM3512AQC208-7N/I20 can implement large address-decoding trees for memory maps spanning multiple banks of SRAM, DRAM, Flash, and peripherals. Each macrocell provides a programmable product term, register, and tri-state control, enabling registered chip-select outputs that meet 7.5 ns setup time for modern microprocessors. The deterministic tPD simplifies worst-case timing closure, and the 172 I/Os comfortably address 20+ peripheral chip-selects with margin for future expansion.
推薦
Industrial Control Board Logic
The 0 C to 70 C commercial temperature range and robust CMOS EEPROM technology of the EPM3512AQC208-7N/I20 suit it for industrial control boards requiring deterministic I/O timing. The device consolidates dozens of 74-series TTL/CMOS glue parts into a single IC, reducing PCB area, BOM count, and supply-chain risk on long-lifecycle industrial products. The JTAG-supported ISP allows in-field firmware updates without removing the board from the chassis, and the 208-pin PQFP package is friendly to through-hole-like rework on legacy manufacturing lines.
推薦
Power-Sequencing and Reset Distribution
The instant-on, non-volatile nature of the EPM3512AQC208-7N/I20 makes it well suited to power-rail sequencing in multi-voltage systems. It can monitor voltage-rail good signals from supervisors and assert enables to DC-DC converters and LDOs in a defined order with microsecond timing precision, eliminating the timing variability of discrete RC delay networks. Its 7.5 ns propagation delay supports tight sequencing of rails for processors requiring strict power-on order, and the 172 user I/Os comfortably handle 10+ independent power domains with margin.
推薦
Peripheral Interface Bridging
The EPM3512AQC208-7N/I20 bridges between incompatible peripheral interfaces - for example, converting a parallel FIFO bus to an SPI-controlled GPIO expander, or translating an Intel-style bus to a Motorola-style bus for legacy peripherals. Its 116.3 MHz internal frequency supports up to 50 MHz state-machine operation, sufficient for UART, SPI, I2C, and parallel-port bridging at standard baud rates. MultiVolt I/O (1.8/2.5/3.3 V) lets it sit directly between modern SoCs and 5 V-tolerant legacy peripherals.
推薦
Legacy Telecom Backplane Glue Logic
Telecom backplanes built around ATCA / CompactPCI architectures still rely on MAX 3000A CPLDs for hot-swap control, I2C management bus isolation, and interrupt routing. The EPM3512AQC208-7N/I20's 172 I/Os comfortably aggregate multiple board-management signals, and its 3.3 V core with 5 V-tolerant I/O is ideal for mixed-voltage backplane environments. The JTAG-supported ISP enables in-system firmware updates during board bring-up without removing line cards from service.
推薦
推薦產品摘要
工程參考資料，適用於 EPM3512AQC208-7N/I20 — 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 | EPM3512AQC208-15N | EPM3512AQC208-7 | EPM3512AQC208-3N |
|---|---|---|---|---|---|
| Package | 208-pin PQFP (QC208) | 208-pin PQFP (QC208) - same | 208-pin PQFP (QC208) - same | 208-pin PQFP (QC208) - same | 208-pin PQFP (QC208) - same |
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Macrocells | 512 | 512 | 512 | 512 | 512 |
| Propagation Delay (tPD) | 7.5 ns | 10 ns | 15 ns | 7.5 ns | 3 ns |
| Max Internal Frequency | 116.3 MHz | ~80 MHz | ~64 MHz | 116.3 MHz | ~227 MHz |
| User I/O Pins | 172 | 172 | 172 | 172 | 172 |
| Supply Voltage | 3.0-3.6 V | 3.0-3.6 V | 3.0-3.6 V | 3.0-3.6 V | 3.0-3.6 V |
| Lead Finish | Pb-free (N suffix) | Pb-free | Pb-free | SnPb (non-Pb-free) | Pb-free |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
主要差異化特點
- Highest macrocell density in the MAX 3000A family (對比EPM3256AQC208-7N)
- Faster speed grade at same density (對比EPM3512AQC208-10N)
- PQFP-208 package offers through-hole-like reworkability vs BGA (對比EPM3512AFC256-7N)
設計說明
Decouple each VCCINT pin with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, plus a single 10 uF bulk capacitor near the supply entry. Place 0.1 uF caps on every VCCIO bank supply as well. The 512-macrocell core draws up to ~300 mA during programming pulses, so the 3.3 V regulator must supply at least 500 mA peak with <100 mV transient excursion.
Estimated: at 116.3 MHz toggling all 172 I/Os with 10 pF loads, dynamic core power is ~0.7 W. Combined with ~50 mW static power, total dissipation is ~0.75 W; on a 4-layer PCB with PQFP-208 thermal pad of ~32 C/W theta_JA, junction rises ~24 C above ambient. No heatsink required, but provide continuous ground plane under the package for best thermal performance.
Route JTAG signals TDI, TMS, TCK, TDO as a 4-wire bus with 10 kohm pull-ups on TDI/TMS/TCK to VCCIO. Keep the JTAG chain under 150 mm and avoid stubs. The 208-pin PQFP has a 0.5 mm lead pitch and 30.6 mm body width; use 0.25 mm-wide traces with 0.20 mm spaces and micro-vias on inner escape layers to fan out cleanly.
Do not connect 5 V signals directly to I/O pins when VCCIO is 3.3 V unless the input is verified 5 V-tolerant (MAX 3000A inputs are 5 V-tolerant with 3.3 V VCCIO). Never apply 5 V to VCCINT - the absolute maximum is 4.0 V. Always include the JTAG IDCODE check in your BSDL file before in-system programming; the factory default IDCODE for the EPM3512A is 0x0120A0DD.
合規資訊
Pb-free lead finish (N suffix) indicates SnPb-free plating, but RoHS compliance was not explicitly stated in the verified web data; AEC-Q100 not applicable because the device is a commercial-grade (0-70 C) programmable logic IC, not an automotive-grade IC.
