EPM3064ATI44-7N - MAX 3000A CPLD, 64 Macrocells, 44-TQFP | Altera
料号： EPM3064ATI44-7N ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $5.95 | $2,975.00 |
| 1,000 | $5.1 | $5,100.00 |
EPM3064ATI44-7N 概述
What is a CPLD? A Complex Programmable Logic Device is a non-volatile, flash/EEPROM-backed logic IC that bridges the gap between discrete glue logic and full FPGAs. It sits in the programmable logic hierarchy between simple PAL/GAL devices and SRAM-based FPGAs, offering deterministic pin-to-pin timing, instant-on behavior (no boot loader required), and the ability to implement glue logic, state machines, bus decoders, and peripheral bridges in a single chip. The MAX 3000A architecture uses a classic interconnect array (the Programmable Interconnect Array, or PIA) that routes signals between logic array blocks (LABs), making it well-suited for high-fanout and wide-combinatorial designs.
Key features include 34 user I/O pins, four dedicated input pins for clocking, multiVolt I/O support for 1.8V/2.5V/3.3V/5V mixed-voltage interfacing, in-system programmability via JTAG, and a commercial operating temperature grade (the trailing -7 indicates 7 ns pin-to-pin logic delay; the 'I' denotes industrial temperature range and 'N' denotes lead-free / RoHS compliance). The TQFP-44 package provides surface-mount assembly on standard 0.8 mm pitch footprints.
Typical applications include bus-interface bridging, address decoding and glue logic in microcontroller designs, peripheral expansion for ASICs and processors, power-up sequencing, and low-density state-machine replacement. The instant-on, non-volatile nature makes it especially attractive for safety-critical or boot-time-sensitive applications.
When designing with the EPM3064ATI44-7N, ensure the JTAG chain is properly terminated with the TCK pull-down and TMS pull-up resistors as specified in the datasheet. The 5V-tolerant I/O simplifies interfacing to legacy 5V logic without level shifters, but pay attention to VCCIO bank voltages during mixed-voltage designs.
直接替换替代料： EPM3064ATI44-7N ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： EPM3064ATI44-7N （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package, Usable Gates, RoHS Status, Programming Interface.
快速对比工具——选择替代料号进行并排对比：
EPM3064ATI44-10N
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →EPM3064ATC44-7N
✅ 直接替换✓ 有现货
$2.3 / 个
查看数据手册 →EPM3064ATI44-4N
✅ 直接替换✓ 有现货
$4.25 / 个
查看数据手册 →EPM3064ATI44-10NAE
✅ 直接替换✓ 有现货
$3.05 / 个
查看数据手册 →EPM3064ATI44-10NAD
✅ 直接替换✓ 有现货
$4.1 / 个
查看数据手册 →EPM3064ATI44-7N 最大额定值与电气特性
| Family | MAX 3000A |
| Logic Elements / Macrocells | 64 macrocells |
| Usable Gates | 1,250 gates |
| Maximum Frequency (fMAX) | 135.1 MHz |
| Pin-to-Pin Logic Delay | 7 ns (speed grade -7) |
| User I/O Count | 34 I/O |
| Dedicated Input Pins | 4 |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Bank Voltage (VCCIO) | 1.8 V / 2.5 V / 3.3 V / 5 V tolerant (multiVolt) |
| Program Memory Type | EEPROM (in-system programmable) |
| Programming Interface | IEEE 1149.1 JTAG |
| 封装 | 44-pin TQFP (10x10 mm, 0.8 mm pitch) |
| Operating Temperature Grade | Industrial (-40C to +85C) |
| RoHS 状态 | Compliant (lead-free, 'N' suffix) |
| Process Technology | 0.30 µm CMOS EEPROM |
EPM3064ATI44-7N 引脚配置
| 引脚 1 | I/O — User I/O pin (bank 1) |
| 引脚 2 | I/O — User I/O pin (bank 1) |
| 引脚 3 | I/O — User I/O pin (bank 1) |
| 引脚 4 | I/O — User I/O pin (bank 1) |
| 引脚 5 | I/O — User I/O pin (bank 1) |
| 引脚 6 | GND — Ground |
| 引脚 7 | I/O — User I/O pin (bank 1) |
| 引脚 8 | I/O — User I/O pin (bank 1) |
| 引脚 9 | I/O — User I/O pin (bank 1) |
| 引脚 10 | I/O — User I/O pin (bank 1) |
| 引脚 11 | I/O — User I/O pin (bank 1) |
| 引脚 12 | TDI — JTAG Test Data In |
| 引脚 13 | TMS — JTAG Test Mode Select |
| 引脚 14 | TCK — JTAG Test Clock |
| 引脚 15 | VCCINT — Core supply voltage (3.3 V) |
| 引脚 16 | I/O — User I/O pin (bank 2) |
| 引脚 17 | I/O — User I/O pin (bank 2) |
| 引脚 18 | I/O — User I/O pin (bank 2) |
| 引脚 19 | I/O — User I/O pin (bank 2) |
| 引脚 20 | I/O — User I/O pin (bank 2) |
| 引脚 21 | I/O — User I/O pin (bank 2) |
| 引脚 22 | GND — Ground |
| 引脚 23 | I/O — User I/O pin (bank 2) |
| 引脚 24 | I/O — User I/O pin (bank 2) |
| 引脚 25 | I/O — User I/O pin (bank 2) |
| 引脚 26 | I/O — User I/O pin (bank 2) |
| 引脚 27 | I/O — User I/O pin (bank 2) |
| 引脚 28 | INPUT/GCLK — Dedicated input / global clock |
| 引脚 29 | INPUT/GCLK — Dedicated input / global clock |
| 引脚 30 | INPUT/GCLK — Dedicated input / global clock |
| 引脚 31 | INPUT/OE — Dedicated input / output enable |
| 引脚 32 | VCCIO1 — I/O bank 1 supply voltage |
| 引脚 33 | I/O — User I/O pin (bank 1) |
| 引脚 34 | I/O — User I/O pin (bank 1) |
| 引脚 35 | I/O — User I/O pin (bank 1) |
| 引脚 36 | GND — Ground |
| 引脚 37 | I/O — User I/O pin (bank 1) |
| 引脚 38 | I/O — User I/O pin (bank 1) |
| 引脚 39 | I/O — User I/O pin (bank 1) |
| 引脚 40 | I/O — User I/O pin (bank 1) |
| 引脚 41 | I/O — User I/O pin (bank 1) |
| 引脚 42 | I/O — User I/O pin (bank 1) |
| 引脚 43 | TDO — JTAG Test Data Out |
| 引脚 44 | VCCIO2 — I/O bank 2 supply voltage |
典型应用
EPM3064ATI44-7N 适用于 6 应用s: Bus Interface Bridging, Address Decoding & Glue Logic, Peripheral Expansion for ASICs, Power-Up Sequencing & Reset Control, Low-Density State Machine Replacement, Legacy System Modernization.
Bus Interface Bridging
The EPM3064ATI44-7N is well-suited to bus-bridging tasks between microcontrollers, ASICs, and legacy peripherals operating at mixed voltages. Its 5V-tolerant multiVolt I/O lets it interface directly to 5 V peripherals while running from a 3.3 V core, eliminating external level shifters. With 64 macrocells, the device can implement full 8/16/32-bit address decoders, chip-select generators, and bus-arbitration logic in a single non-volatile part, replacing several discrete 74-series glue-logic ICs. The 7 ns tPD and 135.1 MHz fMAX provide comfortable timing margin for 33 MHz PCI and similar bus frequencies. The JTAG ISP interface allows field updates without removing the part, useful for late-stage firmware fixes.
推荐
Address Decoding & Glue Logic
The EPM3064ATI44-7N excels at the high-fanout address-decoding and chip-select generation that often surrounds microprocessors, DSPs, and memory subsystems. Its PIA (Programmable Interconnect Array) is optimized for wide combinational functions with up to 36 inputs across multiple LABs, so a single device can decode the entire address space of a microcontroller, mapping each region to a specific peripheral. Instant-on EEPROM programming means no bootloader or configuration time, ensuring the chip-selects are valid at power-up - critical for systems where the processor expects peripherals to be ready immediately at reset. The industrial temperature range supports automotive under-hood and factory-floor deployments.
推荐
Peripheral Expansion for ASICs
When an ASIC or SoC lacks a specific peripheral - a UART, PWM controller, or custom interface - the EPM3064ATI44-7N can implement that peripheral in programmable logic alongside the main chip. Its 34 user I/O plus 4 dedicated inputs provide enough pins for parallel bus interfaces, encoder counters, or custom serial protocols. The EEPROM-based configuration means the logic is always present at power-up with no flash boot delay, ideal for systems where the SoC expects the peripheral to respond on the first clock cycle. Designers can iterate on the peripheral definition via JTAG without spinning a new ASIC.
推荐
Power-Up Sequencing & Reset Control
The EPM3064ATI44-7N's instant-on EEPROM behavior and deterministic timing make it a reliable supervisor for power-sequencing tasks in multi-rail systems. It can implement reset-distribution logic, voltage-rail enable/disable sequencing, watchdog timers, and power-good signal generation. With 7 ns propagation delay, the device can enforce tight sequencing windows between rails. The 5V-tolerant I/O simplifies interface to supervisor ICs and MOSFET drivers running at higher voltages, while the 3.3 V core aligns with modern processor power requirements. The industrial temperature grade suits harsh-environment deployments.
推荐
Low-Density State Machine Replacement
Designers frequently use the EPM3064ATI44-7N to replace discrete state machines built from 74-series flip-flops and PAL/GAL devices, reducing board area and improving maintainability. The 64 macrocells support state machines with 20-30 states plus auxiliary counters and decoders, all with deterministic timing and single-chip integration. The JTAG ISP allows last-minute logic changes without respinning the PCB, dramatically shortening development cycles. Industrial temperature range and RoHS compliance suit medical, industrial, and automotive embedded applications.
推荐
Legacy System Modernization
The EPM3064ATI44-7N is frequently used to modernize aging 5V logic designs by consolidating multiple PALs and discrete logic into a single 3.3 V CPLD while maintaining 5V I/O compatibility. Designers can replicate the original PAL equations exactly in the MAX 3000A architecture using Altera's legacy support tools, then upgrade the logic over time without changing the PCB. This makes it a popular choice for industrial-control retrofits, telecom infrastructure upgrades, and military/aerospace sustainment programs where form-fit-function replacement of legacy PAL/GAL parts is mandatory.
推荐
推荐产品汇总
工程参考数据： EPM3064ATI44-7N ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | EPM3064ATI44-10N | EPM3064ATC44-7N | EPM3064ATI44-4N | EPM3064ATI44-10NAE | EPM3064ATC100-7N |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-100 - DIFFERENT |
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Macrocells | 64 | 64 | 64 | 64 | 64 | 64 |
| Pin-to-Pin Delay | 7 ns | 10 ns | 7 ns | 4 ns | 10 ns | 7 ns |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) |
| User I/O | 34 | 34 | 34 | 34 | 34 | 66 |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| RoHS Compliance | Yes (N suffix) | Yes | Yes | Yes | Yes | Yes |
| Pin-Compatible Drop-In | Reference | Yes | Yes | Yes | Yes | No (TQFP-100) |
关键差异点
- 7 ns speed grade with industrial temperature range （对比 EPM3064ATI44-10N)
- Industrial temp grade (-40C to +85C) （对比 EPM3064ATC44-7N)
- Compact 44-pin TQFP footprint （对比 EPM3064ATC100-7N)
- Drop-in compatibility with broader MAX 3000A family （对比 EPM3032A-family parts)
设计说明
Route the JTAG signals (TCK, TMS, TDI, TDO) as a short daisy-chain from the connector to the device. Place a 10 kΩ pull-up on TMS and TDI, and a 10 kΩ pull-down on TCK, per the MAX 3000A datasheet recommendation. Keep JTAG traces away from fast-switching signals and add a series 100 Ω terminator near TDO if the trace exceeds 50 mm. The TQFP-44 has a 0.8 mm pitch - use 0.15 mm/0.20 mm trace-and-space and a 4-layer stack-up with continuous ground plane under the device for signal integrity.
Decouple VCCINT (3.3 V core) and each VCCIO bank (VCCIO1, VCCIO2) with a 0.1 µF ceramic capacitor placed within 3 mm of the corresponding pin. Add a bulk 10 µF tantalum or ceramic capacitor near the device for transient current during JTAG programming. Both VCCINT and VCCIO must ramp together or VCCIO first; floating VCCINT while VCCIO is driven can cause latch-up. For mixed-voltage designs, set VCCIO1 and VCCIO2 to match their respective external logic (e.g., 5 V for legacy peripherals, 3.3 V for the MCU).
Do not confuse the EPM3064A (MAX 3000A, 3.3 V) with the EPM7064AE (MAX 7000A, 5 V) - they are NOT pin-compatible even when both are listed as 44-pin TQFP. The MAX 7000A core requires 5 V VCCINT, while the MAX 3000A core requires 3.3 V VCCINT; applying 5 V to the EPM3064A will destroy the device. Also note that the EPM3032A (32 macrocells) shares the same TQFP-44 footprint but offers only half the logic capacity - it is NOT a logic-identical drop-in replacement.
The dedicated global clock pins (GCLK1-GCLK3) and the dedicated output enable (OE) pin drive the entire device with low skew - assign high-fanout clocks and output enables to these pins rather than regular I/O. For signals that must meet tight setup/hold times at the destination register, drive them from a dedicated input pin and route them through the local LAB, not the PIA, to minimize interconnect delay.
合规信息
RoHS compliant per 'N' suffix in part number. Altera (now Intel PSG) MAX 3000A family is lead-free matte-tin finish. Halogen-free status not explicitly stated in verified data. Not AEC-Q100 qualified - the MAX 3000A family targets industrial/commercial, not automotive Grade 0/1.
