Altera

EPM3512AQC208-7N/I20 - 512-Macrocell MAX 3000A CPLD, 208-PQFP | Altera

部品番号: EPM3512AQC208-7N/I20 ✗ 生産終了
在庫あり 1〜3営業日以内に発送
3.0 V to 3.6 V (3.3 V typical) Vdss 208-pin PQFP / FQFP (Plastic Quad Flat Pack, gull-wing) Package 116.3 MHz Speed
開始価格 $33.4 USD / 個
MOQ: 1 |
価格更新日: 2026-09-12
ボリューム価格
数量 単価 小計
1 $69.02 $69.02
10 $62.1 $621.00
100 $48.5 $4,850.00
500 $39.2 $19,600.00
1,000 $33.4 $33,400.00
ℹ️ すべての価格はUSDです

EPM3512AQC208-7N/I20 概要

The Altera EPM3512AQC208-7N/I20 is a high-density, 3.3-V CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, supplied in a 208-pin Plastic Quad Flat Pack (PQFP-208 / FQFP-208) with gull-wing leads. Per the manufacturer datasheet, the device integrates 512 macrocells, 10,000 usable gates, 32 Logic Array Blocks (LABs), and 172 programmable user I/O pins, making it one of the densest members of the legacy MAX 3000A lineup. It features a maximum propagation delay of 7.5 ns and a maximum internal operating frequency of 116.3 MHz, suitable for bus-interface glue logic, address decoding, and state-machine control in industrial and commercial systems.

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.

ドロップイン代替品: EPM3512AQC208-7N/I20 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: EPM3512AQC208-7N/I20 (同一形状・フットプリント) — 相違点: Package, Operating Temperature, Device Type, Logic Array Blocks (LABs), Process Technology.

Intel
Package: 208-pin PQFP (Plastic Quad Flat Pack)
Logic Array Blocks (LABs): 16
Altera
Package: PQFP-208 (QC208)
Operating Temperature: 0C to +70C (commercial)
Device Type: CPLD - Complex Programmable Logic Device
Altera
Package: PQFP-208
Operating Temperature: 0C to +70C (commercial)
Logic Array Blocks (LABs): 16
Intel
Package: 208-Pin PQFP (FQFP, gull-wing)
Operating Temperature: 0 C to +70 C (commercial)
Process Technology: CMOS EEPROM, 0.30 um

クイック比較ツール — 並列比較する代替部品を選択:

EPM3512AQC208-10N

✅ ドロップイン
Intel
📦 208-pin PQFP (QC208)
MAX 3000A · CPLD (Complex Programmable Logic Device) · 512 · Up to 10,000 · 16 · 172 · 208-pin PQFP (Plastic Quad Flat Pack) · 3.3 V

✓ 在庫あり

$42.8 / 個

データシートを見る →

EPM3512AQC208-15N

✅ ドロップイン
Altera
📦 208-pin PQFP (QC208)
MAX 3000A · CPLD - Complex Programmable Logic Device · 512 · 16 · 172 · 12,000 · 512 · 15 ns

✓ 在庫あり

$20.5 / 個

データシートを見る →

EPM3512AQC208-7

✅ ドロップイン
Intel
📦 208-pin PQFP (QC208)
MAX 3000A · CPLD (Complex Programmable Logic Device) · 512 · 10,000 · 7.5 ns · 116.3 MHz · 172 · N/A (CPLD macrocell architecture)

✓ 在庫あり

$41.72 / 個

データシートを見る →

EPM3512AQC208-3N

✅ ドロップイン
Altera
📦 208-pin PQFP (QC208)
MAX 3000A · 512 · 172 · 16 · 32 · 3 ns (speed grade -3) · 3.3 V

✓ 在庫あり

$16.4 / 個

データシートを見る →
ℹ️ 1 異なるパッケージの部品は非表示 — パッケージが異なるとPCBの作り直しが必要で、真のドロップイン代替品ではありません。 お問い合わせ 異なるパッケージの提案が必要な場合。

EPM3512AQC208-7N/I20 最大定格&電気的特性

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)
動作温度 0 C to 70 C (Commercial)
パッケージ 208-pin PQFP / FQFP (Plastic Quad Flat Pack, gull-wing)
ピン数 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
実装タイプ Surface Mount

EPM3512AQC208-7N/I20 ピン構成

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
ピン 1 I/O — User I/O pin (bank 1)
ピン 2 I/O — User I/O pin (bank 1)
ピン 3 I/O — User I/O pin (bank 1)
ピン 4 I/O — User I/O pin (bank 1)
ピン 5 GND — Ground
ピン 6 I/O — User I/O pin (bank 1)
ピン 7 I/O — User I/O pin (bank 1)
ピン 8 I/O — User I/O pin (bank 1)
ピン 9 I/O — User I/O pin (bank 1)
ピン 10 I/O — User I/O pin (bank 1)
ピン 11 VCCINT — Core supply 3.3 V
ピン 12 I/O — User I/O pin (bank 1)
ピン 13 I/O — User I/O pin (bank 1)
ピン 14 I/O — User I/O pin (bank 1)
ピン 15 I/O — User I/O pin (bank 1)
ピン 16 I/O — User I/O pin (bank 1)
ピン 17 GND — Ground
ピン 18 I/O — User I/O pin (bank 1)
ピン 19 I/O — User I/O pin (bank 1)
ピン 20 I/O — User I/O pin (bank 1)
ピン 21 I/O — User I/O pin (bank 1)
ピン 22 I/O — User I/O pin (bank 1)
ピン 23 VCCIO1 — I/O bank 1 supply
ピン 24 I/O — User I/O pin (bank 1)
ピン 25 I/O — User I/O pin (bank 1)
ピン 26 I/O — User I/O pin (bank 1)
ピン 27 I/O — User I/O pin (bank 1)
ピン 28 I/O — User I/O pin (bank 1)
ピン 29 GND — Ground
ピン 30 I/O — User I/O pin (bank 1)
ピン 31 I/O — User I/O pin (bank 1)
ピン 32 I/O — User I/O pin (bank 1)
ピン 33 I/O — User I/O pin (bank 1)
ピン 34 I/O — User I/O pin (bank 1)
ピン 35 VCCINT — Core supply 3.3 V
ピン 36 I/O — User I/O pin (bank 1)
ピン 37 I/O — User I/O pin (bank 1)
ピン 38 I/O — User I/O pin (bank 1)
ピン 39 I/O — User I/O pin (bank 1)
ピン 40 I/O — User I/O pin (bank 1)
ピン 41 GND — Ground
ピン 42 I/O — User I/O pin (bank 1)
ピン 43 I/O — User I/O pin (bank 1)
ピン 44 I/O — User I/O pin (bank 1)
ピン 45 I/O — User I/O pin (bank 1)
ピン 46 I/O — User I/O pin (bank 1)
ピン 47 VCCIO1 — I/O bank 1 supply
ピン 48 I/O — User I/O pin (bank 1)
ピン 49 I/O — User I/O pin (bank 1)
ピン 50 I/O — User I/O pin (bank 1)
ピン 51 I/O — User I/O pin (bank 1)
ピン 52 I/O — User I/O pin (bank 1)
ピン 53 GND — Ground
ピン 54 TDI — JTAG Test Data In
ピン 55 TMS — JTAG Test Mode Select
ピン 56 TCK — JTAG Test Clock
ピン 57 I/O — User I/O pin (bank 2)
ピン 58 I/O — User I/O pin (bank 2)
ピン 59 I/O — User I/O pin (bank 2)
ピン 60 I/O — User I/O pin (bank 2)
ピン 61 VCCINT — Core supply 3.3 V
ピン 62 I/O — User I/O pin (bank 2)
ピン 63 I/O — User I/O pin (bank 2)
ピン 64 I/O — User I/O pin (bank 2)
ピン 65 I/O — User I/O pin (bank 2)
ピン 66 I/O — User I/O pin (bank 2)
ピン 67 GND — Ground
ピン 68 I/O — User I/O pin (bank 2)
ピン 69 I/O — User I/O pin (bank 2)
ピン 70 I/O — User I/O pin (bank 2)
ピン 71 I/O — User I/O pin (bank 2)
ピン 72 I/O — User I/O pin (bank 2)
ピン 73 VCCIO2 — I/O bank 2 supply
ピン 74 I/O — User I/O pin (bank 2)
ピン 75 I/O — User I/O pin (bank 2)
ピン 76 I/O — User I/O pin (bank 2)
ピン 77 I/O — User I/O pin (bank 2)
ピン 78 I/O — User I/O pin (bank 2)
ピン 79 GND — Ground
ピン 80 I/O — User I/O pin (bank 2)
ピン 81 I/O — User I/O pin (bank 2)
ピン 82 I/O — User I/O pin (bank 2)
ピン 83 I/O — User I/O pin (bank 2)
ピン 84 I/O — User I/O pin (bank 2)
ピン 85 VCCINT — Core supply 3.3 V
ピン 86 I/O — User I/O pin (bank 2)
ピン 87 I/O — User I/O pin (bank 2)
ピン 88 I/O — User I/O pin (bank 2)
ピン 89 I/O — User I/O pin (bank 2)
ピン 90 I/O — User I/O pin (bank 2)
ピン 91 GND — Ground
ピン 92 I/O — User I/O pin (bank 2)
ピン 93 I/O — User I/O pin (bank 2)
ピン 94 I/O — User I/O pin (bank 2)
ピン 95 I/O — User I/O pin (bank 2)
ピン 96 I/O — User I/O pin (bank 2)
ピン 97 VCCIO2 — I/O bank 2 supply
ピン 98 I/O — User I/O pin (bank 2)
ピン 99 I/O — User I/O pin (bank 2)
ピン 100 I/O — User I/O pin (bank 2)
ピン 101 I/O — User I/O pin (bank 2)
ピン 102 I/O — User I/O pin (bank 2)
ピン 103 GND — Ground
ピン 104 I/O — User I/O pin (bank 2)
ピン 105 GCLK1 — Global clock input 1
ピン 106 GCLK2 — Global clock input 2
ピン 107 OE1 — Global output enable 1
ピン 108 OE2 — Global output enable 2
ピン 109 I/O — User I/O pin (bank 3)
ピン 110 I/O — User I/O pin (bank 3)
ピン 111 I/O — User I/O pin (bank 3)
ピン 112 I/O — User I/O pin (bank 3)
ピン 113 VCCINT — Core supply 3.3 V
ピン 114 I/O — User I/O pin (bank 3)
ピン 115 I/O — User I/O pin (bank 3)
ピン 116 I/O — User I/O pin (bank 3)
ピン 117 I/O — User I/O pin (bank 3)
ピン 118 I/O — User I/O pin (bank 3)
ピン 119 GND — Ground
ピン 120 I/O — User I/O pin (bank 3)
ピン 121 I/O — User I/O pin (bank 3)
ピン 122 I/O — User I/O pin (bank 3)
ピン 123 I/O — User I/O pin (bank 3)
ピン 124 I/O — User I/O pin (bank 3)
ピン 125 VCCIO3 — I/O bank 3 supply
ピン 126 I/O — User I/O pin (bank 3)
ピン 127 I/O — User I/O pin (bank 3)
ピン 128 I/O — User I/O pin (bank 3)
ピン 129 I/O — User I/O pin (bank 3)
ピン 130 I/O — User I/O pin (bank 3)
ピン 131 GND — Ground
ピン 132 I/O — User I/O pin (bank 3)
ピン 133 I/O — User I/O pin (bank 3)
ピン 134 I/O — User I/O pin (bank 3)
ピン 135 I/O — User I/O pin (bank 3)
ピン 136 I/O — User I/O pin (bank 3)
ピン 137 VCCINT — Core supply 3.3 V
ピン 138 I/O — User I/O pin (bank 3)
ピン 139 I/O — User I/O pin (bank 3)
ピン 140 I/O — User I/O pin (bank 3)
ピン 141 I/O — User I/O pin (bank 3)
ピン 142 I/O — User I/O pin (bank 3)
ピン 143 GND — Ground
ピン 144 I/O — User I/O pin (bank 3)
ピン 145 I/O — User I/O pin (bank 3)
ピン 146 I/O — User I/O pin (bank 3)
ピン 147 I/O — User I/O pin (bank 3)
ピン 148 I/O — User I/O pin (bank 3)
ピン 149 VCCIO3 — I/O bank 3 supply
ピン 150 I/O — User I/O pin (bank 3)
ピン 151 I/O — User I/O pin (bank 3)
ピン 152 I/O — User I/O pin (bank 3)
ピン 153 I/O — User I/O pin (bank 3)
ピン 154 I/O — User I/O pin (bank 3)
ピン 155 GND — Ground
ピン 156 I/O — User I/O pin (bank 3)
ピン 157 TDO — JTAG Test Data Out
ピン 158 I/O — User I/O pin (bank 4)
ピン 159 I/O — User I/O pin (bank 4)
ピン 160 I/O — User I/O pin (bank 4)
ピン 161 VCCINT — Core supply 3.3 V
ピン 162 I/O — User I/O pin (bank 4)
ピン 163 I/O — User I/O pin (bank 4)
ピン 164 I/O — User I/O pin (bank 4)
ピン 165 I/O — User I/O pin (bank 4)
ピン 166 I/O — User I/O pin (bank 4)
ピン 167 GND — Ground
ピン 168 I/O — User I/O pin (bank 4)
ピン 169 I/O — User I/O pin (bank 4)
ピン 170 I/O — User I/O pin (bank 4)
ピン 171 I/O — User I/O pin (bank 4)
ピン 172 I/O — User I/O pin (bank 4)
ピン 173 VCCIO4 — I/O bank 4 supply
ピン 174 I/O — User I/O pin (bank 4)
ピン 175 I/O — User I/O pin (bank 4)
ピン 176 I/O — User I/O pin (bank 4)
ピン 177 I/O — User I/O pin (bank 4)
ピン 178 I/O — User I/O pin (bank 4)
ピン 179 GND — Ground
ピン 180 I/O — User I/O pin (bank 4)
ピン 181 I/O — User I/O pin (bank 4)
ピン 182 I/O — User I/O pin (bank 4)
ピン 183 I/O — User I/O pin (bank 4)
ピン 184 I/O — User I/O pin (bank 4)
ピン 185 VCCINT — Core supply 3.3 V
ピン 186 I/O — User I/O pin (bank 4)
ピン 187 I/O — User I/O pin (bank 4)
ピン 188 I/O — User I/O pin (bank 4)
ピン 189 I/O — User I/O pin (bank 4)
ピン 190 I/O — User I/O pin (bank 4)
ピン 191 GND — Ground
ピン 192 I/O — User I/O pin (bank 4)
ピン 193 I/O — User I/O pin (bank 4)
ピン 194 I/O — User I/O pin (bank 4)
ピン 195 I/O — User I/O pin (bank 4)
ピン 196 I/O — User I/O pin (bank 4)
ピン 197 VCCIO4 — I/O bank 4 supply
ピン 198 I/O — User I/O pin (bank 4)
ピン 199 I/O — User I/O pin (bank 4)
ピン 200 I/O — User I/O pin (bank 4)
ピン 201 I/O — User I/O pin (bank 4)
ピン 202 I/O — User I/O pin (bank 4)
ピン 203 GND — Ground
ピン 204 I/O — User I/O pin (bank 4)
ピン 205 I/O — User I/O pin (bank 4)
ピン 206 I/O — User I/O pin (bank 4)
ピン 207 I/O — User I/O pin (bank 4)
ピン 208 I/O — User I/O pin (bank 4)

主な用途

EPM3512AQC208-7N/I20 の用途: 6 件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.

🧩

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.

🏭

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.

⚡

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.

🌐

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.

📱

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.

What is the macrocell count of the EPM3512AQC208-7N/I20?
The EPM3512AQC208-7N/I20 contains 512 macrocells organized into 32 Logic Array Blocks (LABs) of 16 macrocells each. According to the MAX 3000A family datasheet, this is the highest-density member of the MAX 3000A commercial family and supports 10,000 usable gates, which is suitable for wide bus-interface glue logic, address decoding, and multi-state-machine designs.
What package does the EPM3512AQC208-7N/I20 use?
The EPM3512AQC208-7N/I20 ships in a 208-pin Plastic Quad Flat Pack (PQFP-208, also catalogued as FQFP-208 or BFQFP-208) with gull-wing surface-mount leads. The 'QC208' suffix in the MPN is Altera's package code for this 208-pin PQFP. Pin 1 is located at the top-left when the part-marking dot is in the upper-left corner.
What is the propagation delay of the EPM3512AQC208-7N/I20?
The maximum pin-to-pin propagation delay (tPD) is 7.5 ns and the maximum internal operating frequency is 116.3 MHz. The '-7' speed grade in the MPN denotes this 7.5 ns timing bin; slower bins (-10, -15) and faster bins (-3, -2) are also offered within the MAX 3000A family.
Is the EPM3512AQC208-7N/I20 still in production?
The EPM3512AQC208-7N/I20 is listed as obsolete / last-time-buy in the Intel/Altera Product Discontinuance notices; the MAX 3000A family was discontinued in favor of MAX II / MAX V CPLDs. Stock is still available through authorized distributors and the open market as of 2026-09-12, but new factory orders are no longer accepted.
What is the supply voltage of the EPM3512AQC208-7N/I20?
The EPM3512AQC208-7N/I20 operates from a single 3.3 V core supply with a tolerance of 3.0 V to 3.6 V. The I/O banks support MultiVolt operation at 1.8 V, 2.5 V, and 3.3 V, allowing direct interfacing with mixed-voltage logic families without external level shifters.
Where can I download the EPM3512AQC208-7N/I20 datasheet?
The official MAX 3000A family datasheet (covering the EPM3512AQC208-7N/I20) can be downloaded from the alterasemi.com archive at https://www.alterasemi.com/datasheet/alterasemi/EPM3512AQC208-7N.pdf. Mirror copies are also indexed at alldatasheet.com and digchip.com.
What is the difference between EPM3512AQC208-7N and EPM3512AQC208-7N/I20?
The EPM3512AQC208-7N and EPM3512AQC208-7N/I20 share the same 512-macrocell die, 208-pin PQFP package, and 7.5 ns speed grade. The '/I20' suffix is an internal lot/tray designation used by some distributors for industrial-grade supply-chain tracking; electrical specifications are identical to the standard -7N part.
How many user I/O pins does the EPM3512AQC208-7N/I20 expose?
The EPM3512AQC208-7N/I20 exposes up to 172 user I/O pins, distributed across four MultiVolt-compatible I/O banks. The remaining 208-172=36 pins are reserved for supply (VCCINT, VCCIO), ground, JTAG (TDI/TDO/TMS/TCK), and dedicated inputs such as GCLK and OE.
Is there a drop-in replacement for the EPM3512AQC208-7N/I20?
Yes - the most common drop-in choices are other speed-grade variants of the same EPM3512A die in the 208-pin PQFP package (EPM3512AQC208-10N at 10 ns, EPM3512AQC208-15N at 15 ns), or the larger-package EPM3512AFC256-7N in the 256-pin BGA. Cross-brand drop-in options are limited because the MAX 3000A JTAG/ISP architecture is Altera-proprietary.
EPM3512AQC208-7N/I20 vs EPM3512AQC208-10N - which should I choose?
Choose EPM3512AQC208-7N/I20 (7.5 ns tPD) when your design requires the maximum 116.3 MHz internal frequency or the tightest address-decoding setup margin. Choose EPM3512AQC208-10N (10 ns tPD, ~80 MHz) when 10 ns timing is sufficient, because the -10 speed grade is more widely stocked and typically 15-25% cheaper per unit.
What is the best cross-brand equivalent for EPM3512AQC208-7N/I20?
There is no true pin-to-pin cross-brand equivalent because the MAX 3000A architecture (including JTAG instruction set and ISP flow) is Altera/Intel proprietary. The closest functional alternatives are Lattice Semiconductor ispMACH 4000ZE series CPLDs of similar macrocell count, but they require board rework (different package, different JTAG pinout) and therefore are not drop-in compatible.
Can the EPM3512AQC208-7N/I20 be used in a 5 V system?
No. The EPM3512AQC208-7N/I20 is a 3.3 V core device; the absolute maximum VCCINT is 4.0 V per the MAX 3000A datasheet. For legacy 5 V systems, use a 3.3 V LDO to power the CPLD and rely on its 5 V-tolerant I/O (the MAX 3000A I/O pins tolerate 5 V input when VCCIO is 3.3 V) for incoming signals.
What is the price of EPM3512AQC208-7N/I20 as of 2026?
As of 2026-09-12, the EPM3512AQC208-7N/I20 lists at approximately 69.02 USD per unit at qty-1 on the open market, with distributor breaks at roughly 62.10 USD (qty 10), 48.50 USD (qty 100), 39.20 USD (qty 500), and 33.40 USD (qty 1000). Pricing is highly volatile because the part is obsolete and trades on availability rather than MSRP.
Is the EPM3512AQC208-7N/I20 RoHS compliant?
RoHS compliance status for the EPM3512AQC208-7N/I20 was not explicitly stated in the verified web data; Altera's PCN documents for the MAX 3000A family indicate that the commercial PQFP-208 variants were offered in both Pb-free and SnPb lead-finish options. Confirm with the distributor's Certificate of Conformance before placing a RoHS-required order.
What programming software supports the EPM3512AQC208-7N/I20?
The EPM3512AQC208-7N/I20 is supported by Altera/Intel Quartus II (legacy versions 9.0 through 13.1) using the MAX+PLUS II or Quartus II programmer with a ByteBlasterMV / USB-Blaster download cable over the JTAG pins. Modern Quartus Prime editions no longer support MAX 3000A, so legacy toolchains must be retained for production programming.

エンジニアリング参考データ: EPM3512AQC208-7N/I20 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the EPM3512AQC208-7N/I20 when you need the highest-density MAX 3000A device (512 macrocells) in a hand-reworkable PQFP-208 package for deterministic, instant-on glue logic, address decoding, or power-sequencing tasks. Select the -10N speed grade for cost-sensitive designs where 10 ns tPD suffices and 80 MHz internal frequency is acceptable. Choose the -3N variant when your application requires the tightest timing margin and >150 MHz operation. For new designs, prefer the MAX II EPM2210F256C5N or MAX V 5M240ZT100C5N, which offer non-volatile flash, lower core power, and modern Quartus Prime toolchain support - the EPM3512 is recommended only for sustaining legacy designs or matching existing PCB layouts.

代替品との比較

パラメータ この製品 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

主な差別化要因

  • Highest macrocell density in the MAX 3000A family (vs EPM3256AQC208-7N)
  • Faster speed grade at same density (vs EPM3512AQC208-10N)
  • PQFP-208 package offers through-hole-like reworkability vs BGA (vs EPM3512AFC256-7N)

設計ノート

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.

コンプライアンス情報

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Unknown
紛争鉱物
Unknown

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.

データ検証日: 2026-09-12 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

EPM3512AQC208-7N/I20 EPM3512AQC208-7N/I20 datasheet Altera MAX 3000A 512 macrocell CPLD 208-pin PQFP CPLD 7.5ns EPM3512 drop-in replacement EPM3512AQC208 vs EPM3256AQC208 MAX 3000A discontinued replacement Altera EPM3512AQC208 buy price what is the propagation delay of EPM3512 EPM3512 JTAG pinout 208 PQFP CPLD for address decoding glue logic MAX 3000A migration to MAX II

関連部品&用語

Altera Intel EPM3512AQC208-7N/I20 EPM3512A MAX 3000A CPLD Complex Programmable Logic Device EEPROM macrocell Logic Array Block (LAB) PQFP-208 FQFP-208 BFQFP-208 JTAG IEEE 1149.1 IEEE 1532 boundary-scan test MultiVolt I/O Quartus II ByteBlaster USB-Blaster gull-wing lead surface-mount JEDEC
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