EPM7128AETC144-7N - MAX 7000A CPLD, 128 Macros, 144-TQFP | Intel / Altera
料号： EPM7128AETC144-7N ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $66.36 | $66.36 |
| 10 | $59.72 | $597.20 |
| 100 | $53.09 | $5,309.00 |
| 500 | $46.45 | $23,225.00 |
| 1,000 | $39.82 | $39,820.00 |
EPM7128AETC144-7N 概述
A CPLD (Complex Programmable Logic Device) is a non-volatile, flash- or EEPROM-based programmable logic device that sits in the broader hierarchy of programmable logic: CPLD → PLD → programmable logic → digital semiconductor. Unlike FPGAs, which use SRAM and require an external configuration flash, CPLDs boot instantly from on-chip non-volatile memory, making them ideal for glue-logic, bus-interface bridging, and power-sequencing tasks where deterministic startup latency (typically <1 ms) is mandatory.
Key features of the EPM7128AETC144-7N include 128 macrocells, 36 user I/Os in the 144-pin TQFP package, In-System Programmability (ISP) via JTAG (IEEE 1149.1), an extended commercial temperature range, and built-in IEEE Std 1149.1 boundary-scan test support. The MAX 7000A architecture combines a programmable interconnect array with each macrocell containing a programmable AND/OR array, a register, and configurable I/O standards.
Technically, the device delivers 4.5 ns logic-array-block propagation delay and supports multi-voltage I/O for interfacing with 2.5 V, 3.3 V, and 5.0 V devices. Its non-volatile EEPROM cells ensure the design is retained without external configuration memory, while the JTAG interface enables in-system reprogramming during prototyping or field updates.
Typical applications include PCI bus interface glue-logic, address decoding for microprocessors and microcontrollers, power-supply sequencing and supervisory logic, industrial control and factory-automation glue logic, and legacy 5 V-to-3.3 V system migration. Designers often select this part to consolidate discrete 74-series logic into a single programmable device while preserving boot-time determinism.
When designing with this device, observe the recommended decoupling scheme (0.1 µF + 10 µF per supply) and ensure the JTAG chain is terminated correctly. The 7.5 ns speed grade is suitable for designs clocked up to ~129.9 MHz; for higher-frequency logic, choose the -5 or -6 speed grade variants.
直接替换替代料： EPM7128AETC144-7N ——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： EPM7128AETC144-7N （相同外形与封装尺寸） ——差异在于 Package, Supply Voltage (VCCINT), Operating Temperature, Configuration Memory, Process Technology.
快速对比工具——选择替代料号进行并排对比：
EPM7128AETC144-7
✅ 直接替换✓ 有现货
$16.4 / 个
查看数据手册 →EPM7128AETC144-10
✅ 直接替换✓ 有现货
$21.7 / 个
查看数据手册 →EPM7128AETC144-7N 最大额定值与电气特性
| Family | MAX 7000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Logic Gates | 2500 (2.5K gates) |
| Macro Cells | 128 |
| User I/Os | 36 (in 144-pin TQFP) |
| Maximum Operating Frequency | 129.9 MHz |
| Pin-to-Pin Delay | 7.5 ns |
| Propagation Delay (tpd) | 7.5 ns |
| Supply Voltage (VCCINT) | 3.3 V |
| Process Technology | CMOS, EEPROM-based |
| Programmability | In-System Programmable (ISP) via JTAG |
| Boundary-Scan Test | IEEE Std 1149.1 (JTAG) |
| 工作温度 | 0C to +70C (commercial) |
| 封装 | 144-pin TQFP |
| 安装类型 | Surface Mount |
| Pin-Compatible With | MAX 7000S 5.0V family (144-pin TQFP) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
EPM7128AETC144-7N 144-pin tqfp 引脚配置指南
EPM7128AETC144-7N（144-pin tqfp 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： EPM7128AETC144-7N.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EPM7128AETC144-7N 适用于 6 应用s: PCI Bus Interface Glue Logic, Microprocessor Address Decoding, Power Supply Sequencing and Supervisory Logic, Legacy 5V to 3.3V System Migration, Industrial Control and Factory Automation, Communication and Networking Glue Logic.
PCI Bus Interface Glue Logic
The EPM7128AETC144-7N fits PCI bus glue-logic designs where deterministic, sub-microsecond boot time and 3.3 V multi-voltage I/O are mandatory. Its 128 macrocells can implement address decoding, command-encoding, and signal-conditioning logic between a host CPU and a 33 MHz PCI bus. The 7.5 ns tpd and 129.9 MHz fMAX comfortably exceed the 33 MHz PCI clock period (30 ns) with margin for combinational decoding paths. Unlike an FPGA, the non-volatile EEPROM-based CPLD boots instantly at power-on without loading configuration from an external flash, which simplifies board design and reduces BOM cost.
推荐
Microprocessor Address Decoding
The EPM7128AETC144-7N is well-suited to microprocessor address-decoding tasks such as chip-select generation, memory-bank partitioning, and I/O-window mapping. With 128 macrocells and 36 user I/Os, a single CPLD can replace multiple 74HC138/139/154 decoders, simplifying the BOM while improving noise immunity and signal integrity. The 7.5 ns tpd ensures decoded chip-selects remain stable within typical 8/16-bit MCU clock cycles. JTAG-based ISP enables in-circuit reprogramming of the decode map during development without swapping parts.
推荐
Power Supply Sequencing and Supervisory Logic
The EPM7128AETC144-7N is ideal for multi-rail power-supply sequencing and supervisory logic in 3.3 V systems. Its non-volatile boot behavior ensures that power-good (PWRGD), reset, and enable signals are valid at the instant the rails stabilize, before any FPGA or ASIC begins initialization. The 128 macrocells can implement state-machine sequencing for 4-8 supply rails with fault detection, and the JTAG interface allows in-field firmware updates to the sequencing algorithm. Pin compatibility with the 5 V MAX 7000S family simplifies migration of older sequencing designs.
推荐
Legacy 5V to 3.3V System Migration
The EPM7128AETC144-7N provides a clean drop-in migration path for designers transitioning 5.0 V MAX 7000S designs to 3.3 V MAX 7000A operation. Because the 144-pin TQFP footprint is identical, the CPLD can be socket-swapped without PCB rework, immediately reducing I/O bank power consumption and enabling downstream 3.3 V ASICs. Multi-voltage I/O support allows the new MAX 7000A device to drive legacy 5 V peripherals during phased migration. The EPM7128AETC144-7N preserves the JTAG programming chain, so existing development tools and bitstreams can be reused.
推荐
Industrial Control and Factory Automation
The EPM7128AETC144-7N is widely deployed in industrial control and factory-automation systems for glue logic between PLCs, sensors, and motor-driver ICs. Its 128 macrocells handle encoder decoding, PWM generation, and interrupt-aggregation logic, while the 36 I/Os interface to opto-isolated 24 V field wiring via external buffers. The 7.5 ns tpd supports deterministic response times required for safety-rated machine control loops. Pin compatibility across the MAX 7000A family simplifies field replacement and long-term spare-parts management.
推荐
Communication and Networking Glue Logic
The EPM7128AETC144-7N serves as glue logic between networking ASICs, PHYs, and packet processors in routers, switches, and base stations. The 129.9 MHz fMAX allows the CPLD to perform MDIO/LED-status multiplexing, clock-buffer fanout, and SERDES reference-clock steering at gigabit rates. Its non-volatile boot behavior guarantees that PHY reset and initialization sequences complete before the host CPU boots, eliminating race conditions. JTAG-ISP enables in-system reprogramming of the LED-control or clock-routing bitstream during prototyping.
推荐
推荐产品汇总
工程参考数据： EPM7128AETC144-7N ——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 | EPM7128AETC144-7 | EPM7128AETC144-10 | EPM7128AEFC100-5 |
|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 144-pin TQFP | 144-pin TQFP (same) | 144-pin TQFP (same) | 100-pin TQFP (different) |
| Family | MAX 7000A | MAX 7000A | MAX 7000A | MAX 7000A |
| Macrocells | 128 | 128 | 128 | 128 |
| User I/Os | 36 | 36 | 36 | 84 |
| Pin-to-Pin Delay (tpd) | 7.5 ns | 7.5 ns | 10 ns | 5 ns |
| Core Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| RoHS Compliance | Yes (lead-free 'N' suffix) | No (lead-bearing) | Yes | Yes |
| Pin-Compatible With Target | N/A (this is the reference) | Yes (drop-in 144-TQFP) | Yes (drop-in 144-TQFP) | No (100-TQFP, requires PCB rework) |
关键差异点
- Pin-compatible 5V-to-3.3V migration path （对比 MAX 7000S family (e.g. EPM7128SQC160-7))
- Non-volatile boot in <1 ms （对比 SRAM-based FPGAs (e.g. Cyclone IV))
- Lead-free RoHS-compliant packaging （对比 EPM7128AETC144-7 (non-N suffix))
设计说明
The EPM7128AETC144-7N operates from a 3.3 V VCCINT supply and supports multi-voltage I/O (2.5 V, 3.3 V, 5 V tolerant). Use a 0.1 µF decoupling capacitor adjacent to each VCC pin and a bulk 10 µF tantalum or ceramic capacitor on the supply rail. During power-up, ensure VCCINT rises monotonically from 0 V to 3.3 V within the datasheet-specified ramp rate; slow or noisy power ramps can trigger spurious JTAG state-machine transitions. Sequence the VCCIO banks only after VCCINT is stable.
Route the JTAG signals (TCK, TMS, TDI, TDO) as a daisy-chained bus with no stubs and keep traces short (<5 cm). Place the JTAG connector at the board edge for easy access during programming and boundary-scan testing. Provide a ground guard via fence around the JTAG traces to reduce crosstalk. The 144-pin TQFP has a 0.5 mm pitch; use 0.20 mm trace/space design rules with microvia-in-pad for inner-row fan-out if using a 4-layer stack-up.
Estimated: the maximum I/O toggle current for all 36 outputs switching simultaneously at 50 MHz can approach ~250 mA dynamic supply current. Ensure your 3.3 V regulator has at least 20% headroom above this peak and that the ground return path is low-impedance. Do not leave unused I/O pins floating - configure them as outputs driving low in the Quartus pin-assignment file to avoid unwanted input-bounce-induced supply noise. Verify the JTAG chain IDCODE before in-system programming to avoid accidental device mis-identification.
The 7.5 ns tpd corresponds to a maximum recommended clock frequency of 129.9 MHz for internal registered logic; combinational paths crossing multiple logic-array blocks add interconnect delay and reduce the practical fMAX to ~100 MHz for complex designs. Use the Quartus timing analyzer to verify all paths meet setup/hold requirements under worst-case (slow corner, 85C, VCCINT = 3.0 V) conditions. Apply series termination (33 ohm) on high-drive outputs driving >5 cm of trace.
合规信息
RoHS compliant per the 'N' suffix in the MPN. Lead-free packaging confirmed. AEC-Q100 not applicable for commercial-grade CPLDs. REACH compliance status and conflict-minerals declaration should be confirmed with Intel/Altera for production orders.