EPM3128ATC144-7 - MAX 3000A CPLD, 128 Macrocells, 7.5ns | Intel
料号： EPM3128ATC144-7 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $13.5 | $13.50 |
| 10 | $12.15 | $121.50 |
| 100 | $10.8 | $1,080.00 |
| 500 | $9.45 | $4,725.00 |
| 1,000 | $8.1 | $8,100.00 |
EPM3128ATC144-7 概述
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like logic blocks on a single chip with a programmable interconnect matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (PALs/GALs) and high-density FPGAs, offering deterministic timing, instant-on configuration from on-chip EEPROM, and superior I/O density for glue-logic applications. The MAX 3000A family specifically targets low-cost, high-volume designs requiring 32 to 512 macrocells.
Key features of the EPM3128ATC144-7 include 2,500 usable gates, 128 macrocells organized in 8 Logic Array Blocks (LABs), 96 user I/Os, multiVolt I/O supporting 1.8V/2.5V/3.3V interfaces, and built-in boundary-scan test support. The device also provides programmable power-saving modes per macrocell to reduce quiescent power, plus 3.3V in-system programmability that eliminates the need for separate PROM storage. The CMOS EEPROM process technology ensures zero-configuration-time instant-on behavior, ideal for boot-critical applications.
The EPM3128A utilizes a classic MAX architecture with each LAB containing 16 macrocells, each comprising a programmable AND/OR array with configurable flip-flops. A global programmable interconnect array (PIA) routes signals between LABs and I/O pins with predictable, fixed delays - making timing analysis straightforward compared to FPGAs. The device supports JTAG-based boundary scan and ISP-compliant programming via Altera/Intel Quartus II software using a ByteBlaster or USB-Blaster download cable.
Typical applications include PCI bus interface glue logic, bus decoding and address mapping, state-machine controllers, I/O expansion for microcontrollers, power-up sequencing logic, and peripheral interfacing in industrial control systems. The deterministic timing and instant-on behavior make it well suited for ASIC prototyping, legacy system upgrades, and designs where configuration memory must be non-volatile.
When designing with the EPM3128ATC144-7, ensure the JTAG chain is properly terminated with 4.7k pull-ups on TDI/TMS to keep them high during reset. Decouple all VCCINT and VCCIO pins with 0.1 microfarad ceramic capacitors placed within 5mm of each pin pair. The Quartus II design software supports VHDL, Verilog, and schematic entry for this device family.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： EPM3128ATC144-7 ——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： EPM3128ATC144-7 （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, RoHS Status, Usable Gates, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
EPM3128ATC144-7N
✅ 直接替换✓ 有现货
$9.25 / 个
查看数据手册 →EPM3128ATC144-5N
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$13.75 / 个
查看数据手册 →EPM3128ATC144-10N
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$6.56 / 个
查看数据手册 →EPM1270T144C5N
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$19.75 / 个
查看数据手册 →EPM3128ATC144-7 最大额定值与电气特性
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macrocells | 128 |
| Usable Gates | 2,500 |
| Logic Array Blocks (LABs) | 8 (16 macrocells each) |
| User I/Os | 96 |
| 封装 | TQFP-144 (22x22 mm) |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Voltage (VCCIO) | 1.8 V / 2.5 V / 3.3 V (multiVolt) |
| Speed Grade | -7 |
| Pin-to-Pin Propagation Delay (tPD) | 7.5 ns |
| Maximum Internal Frequency (fCNT) | 129.9 MHz |
| Programming Technology | CMOS EEPROM (in-system programmable) |
| JTAG Support | IEEE 1149.1 boundary-scan + ISP |
| 工作温度 | 0C to +70C (Commercial) |
| 安装类型 | Surface Mount |
| Process Technology | CMOS EEPROM |
EPM3128ATC144-7 tqfp-144 (22x22 mm) 引脚配置指南
EPM3128ATC144-7（tqfp-144 (22x22 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： EPM3128ATC144-7.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EPM3128ATC144-7 适用于 6 应用s: PCI Bus Interface Glue Logic, Microcontroller I/O Expansion and Bus Decoding, Industrial Control State Machines, Power-Up Sequencing Logic, ASIC Prototyping and Legacy System Upgrades, Peripheral Interfacing and Protocol Bridging.
PCI Bus Interface Glue Logic
The EPM3128ATC144-7 is well suited as glue logic for PCI Local Bus Specification Revision 2.2 compliant interfaces. According to the MAX 3000A datasheet, the -4, -5, -6, -7, and -10 speed grades meet PCI SIG timing requirements. The device's 96 user I/Os can decode address and command signals, generate chip-select logic for multiple peripherals, and arbitrate bus requests. With 128 macrocells and 7.5 ns pin-to-pin delay, it replaces discrete 74LS/74F glue-logic ICs while reducing PCB area and improving reliability.
推荐
Microcontroller I/O Expansion and Bus Decoding
The EPM3128ATC144-7 serves as a flexible I/O expander and address decoder for microcontrollers with limited GPIO count. Its 96 user I/Os and 128 macrocells can decode address ranges for SRAM, Flash, and peripheral chip-selects, offloading complex timing tasks from the host MCU. MultiVolt I/O support (1.8V/2.5V/3.3V) allows direct interfacing with modern low-voltage microcontrollers. In-system programmability via JTAG enables rapid development iteration without removing the device from the board.
推荐
Industrial Control State Machines
The EPM3128ATC144-7 is ideal for implementing complex state machines in industrial control equipment, where deterministic timing and non-volatile configuration are essential. Its 7.5 ns pin-to-pin delay provides predictable response times for sensor input processing and actuator control signal generation. The 128 macrocells accommodate multi-state control sequences with conditional branching. EEPROM-based configuration means instant-on startup at power-up, critical for safety shutdown systems and motor controllers.
推荐
Power-Up Sequencing Logic
Power-up sequencing in multi-rail systems benefits from the EPM3128ATC144-7's instant-on EEPROM configuration. The device powers up in a deterministic state within nanoseconds, generating programmable enable signals for downstream voltage regulators, ASICs, and FPGAs in their required sequence. The 96 user I/Os can monitor power-good inputs and control up to 96 sequencing channels. With 3.3V core and multiVolt I/O, it interfaces directly with 1.8V, 2.5V, and 3.3V power management ICs.
推荐
ASIC Prototyping and Legacy System Upgrades
The EPM3128ATC144-7 is widely used to prototype ASIC designs before committing to mask tooling, allowing design verification and timing analysis on real hardware. Its deterministic 7.5 ns timing simplifies timing closure for migrated logic. For legacy systems where the original ASIC is obsolete, the device can implement drop-in replacement glue logic with identical functionality. The 144-pin TQFP footprint and JTAG ISP support accelerate development and field-upgrade workflows.
推荐
Peripheral Interfacing and Protocol Bridging
The EPM3128ATC144-7 can bridge between incompatible peripheral protocols - for example, converting parallel bus data to SPI, I2C, or UART formats. Its 128 macrocells handle state machines for protocol conversion while 96 user I/Os provide ample interface width. MultiVolt I/O enables direct connection to 1.8V sensors and 3.3V processors without level shifters. The 129.9 MHz internal frequency supports high-speed protocol conversion up to SPI clock rates of 60+ MHz with proper design.
推荐
推荐产品汇总
工程参考数据： EPM3128ATC144-7 ——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 | EPM3128ATC144-7N | EPM3128ATC144-5N | EPM3128ATC144-10N | EPM1270T144C5N |
|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) |
| Package | TQFP-144 | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same |
| Macrocells / Logic Elements | 128 macrocells | 128 macrocells | 128 macrocells | 128 macrocells | 1270 LEs (MAX II) |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lead-Free Finish | No (SnPb) | Yes (Pb-free) | Yes (Pb-free) | Yes (Pb-free) | Yes (Pb-free) |
| Architecture | MAX 3000A (EEPROM CPLD) | MAX 3000A | MAX 3000A | MAX 3000A | MAX II (Flash CPLD) |
关键差异点
- Identical silicon, lead-free finish （对比 EPM3128ATC144-7N)
- Faster speed grade option （对比 EPM3128ATC144-5N)
- Higher logic capacity in same package （对比 EPM1270T144C5N)
设计说明
The EPM3128ATC144-7 requires both VCCINT (3.3V core) and VCCIO (1.8V/2.5V/3.3V I/O) supplies. Decouple each VCCINT pin with a 0.1 microfarad X7R ceramic capacitor placed within 5mm of the pin, and add a single 10 microfarad bulk tantalum or ceramic capacitor near the device. VCCIO banks can be configured independently to interface with mixed-voltage peripherals. All ground pins must be connected to a solid ground plane to reduce ground bounce and ensure JTAG ISP reliability.
Route JTAG signals (TCK, TMS, TDI, TDO) with 4.7k pull-up resistors on TDI and TMS to keep them high during power-up reset. Maintain stub lengths below 25mm on JTAG signals to ensure signal integrity for ISP programming. The 144-pin TQFP package uses 0.5mm pitch gull-wing leads - use 0.15mm trace/space design rules with 0.25mm vias under the package. Provide a continuous ground plane beneath the device for thermal dissipation and signal return paths.
Do not leave JTAG pins floating - TCK, TMS, TDI require pull-up termination for stable ISP behavior. The Quartus II software (or Intel Quartus Prime) is required for design entry; legacy MAX+PLUS II software also supports the MAX 3000A family. Do not apply voltage to I/O pins before VCCINT and VCCIO are powered, as this can trigger latch-up. When migrating from non-N to N variants (lead-free), verify that your PCB assembly process supports Pb-free reflow profiles (peak 260C).
合规信息
EPM3128ATC144-7 uses SnPb finish and is NOT RoHS compliant. Use EPM3128ATC144-7N for RoHS-compliant designs. Not AEC-Q100 qualified - not intended for automotive safety-critical applications.
