EPM5032DC-25 - 32-Macrocell MAX 5000 EPLD, 25ns DIP-28 | Altera
料号： EPM5032DC-25 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.86 | $3.86 |
| 10 | $3.78 | $37.80 |
| 100 | $3.71 | $371.00 |
| 200 | $3.63 | $726.00 |
| 500 | $3.55 | $1,775.00 |
EPM5032DC-25 概述
Background Knowledge: An EPLD (Erasable Programmable Logic Device) is a class of programmable logic that sits hierarchically below FPGAs and CPLDs, offering deterministic combinatorial and registered logic in a non-volatile (UV-erasable or one-time-programmable) architecture. The MAX 5000 family represents an early generation of high-density, high-speed PLDs intended as drop-in replacements for networks of discrete 74LS/74HC PALs and small-scale integration glue logic on legacy industrial, telecommunications, and aerospace boards.
Key features include 32 macrocells, 32 dedicated input pins in the DIP-28 package, four product-term steering resources per macrocell, and a programmable macrocell flip-flop that can be configured as D, T, JK, or SR. The device supports both combinatorial and registered outputs with global clock signals, asynchronous clear control, and dedicated I/O architectures with high output drive capability. Power consumption is reduced by the CMOS process, while the windowed ceramic package allows repeated UV erasure and reprogramming in development and qualification environments.
Typical applications include industrial control logic, telecommunications interface boards, aerospace and military systems requiring UV-reprogrammable logic, legacy mainframe peripheral boards, and prototype/qualification hardware where in-system silicon revision via UV erasure is preferred over one-time-programmable alternatives. The MAX 5000 architecture provides deterministic timing suitable for synchronous state machines and bus-interface glue logic.
Designers should note that the MAX 5000 family has been in production for decades and is now considered Long-Term Support by Intel (which acquired Altera); verify second-source availability from independent distributors before committing to new designs. Programming requires a standard UV eraser (for the windowed package) and a compatible Altera/Intel MAX+PLUS II or legacy programmer.
直接替换替代料： EPM5032DC-25 ——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： EPM5032DC-25 （相同外形与封装尺寸） ——差异在于 Package, Architecture, Device Type, Supply Voltage (VCC), Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
EPM5032DC-20
✅ 直接替换✓ 有现货
$5.05 / 个
查看数据手册 →EPM5032DC-15
✅ 直接替换✓ 有现货
$9.95 / 个
查看数据手册 →EPM5032DC
✅ 直接替换✓ 有现货
$10.4 / 个
查看数据手册 →EPM5032DC-2
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$8.75 / 个
查看数据手册 →EPM5032DC-25 最大额定值与电气特性
| Manufacturer | Altera (Intel Programmable Solutions Group) |
| Product Family | MAX 5000 |
| Device Type | UV Erasable Programmable Logic Device (EPLD) |
| Macrocells | 32 |
| Pin-to-Pin Propagation Delay (tPD) | 25 ns |
| Number of Dedicated Inputs | 32 (in DIP-28 pinout) |
| Number of I/O Pins | 22 (in DIP-28 pinout, 4 used as dedicated inputs) |
| 封装 | CDIP-28 (Windowed Ceramic DIP-28) |
| Process Technology | CMOS, EPROM (UV-Erasable) |
| Architecture | PAL-Type, Single-LAB, 32-Macrocell |
| Output Structure | Programmable I/O with output enable |
| Flip-Flop Configuration | D, T, JK, or SR (programmable) |
| RoHS 状态 | Lead Free / RoHS Compliant (per distributor listings) |
| Programming Method | UV erase + Altera/Intel MAX+PLUS II programmer |
| Erasure Method | UV light through ceramic window |
EPM5032DC-25 引脚配置
| 引脚 1 | I/O — Bidirectional I/O pin (in DIP-28 pinout per MAX 5000 datasheet) |
| 引脚 2 | I/O — Bidirectional I/O pin |
| 引脚 3 | I/O — Bidirectional I/O pin |
| 引脚 4 | I/O — Bidirectional I/O pin |
| 引脚 5 | I/O — Bidirectional I/O pin |
| 引脚 6 | I/O — Bidirectional I/O pin |
| 引脚 7 | I/O — Bidirectional I/O pin |
| 引脚 8 | I/O — Bidirectional I/O pin |
| 引脚 9 | I/O — Bidirectional I/O pin |
| 引脚 10 | GND — Ground reference |
| 引脚 11 | I/O — Bidirectional I/O pin |
| 引脚 12 | I/O — Bidirectional I/O pin |
| 引脚 13 | I/O — Bidirectional I/O pin |
| 引脚 14 | I/O — Bidirectional I/O pin |
| 引脚 15 | I/O — Bidirectional I/O pin |
| 引脚 16 | I/O — Bidirectional I/O pin |
| 引脚 17 | I/O — Bidirectional I/O pin |
| 引脚 18 | I/O — Bidirectional I/O pin |
| 引脚 19 | I/O — Bidirectional I/O pin |
| 引脚 20 | I/O — Bidirectional I/O pin |
| 引脚 21 | I/O — Bidirectional I/O pin |
| 引脚 22 | I/O — Bidirectional I/O pin |
| 引脚 23 | INPUT — Dedicated input pin |
| 引脚 24 | INPUT — Dedicated input pin |
| 引脚 25 | INPUT — Dedicated input pin |
| 引脚 26 | INPUT — Dedicated input pin |
| 引脚 27 | VCC — Positive supply (typically +5V) |
| 引脚 28 | I/O — Bidirectional I/O pin |
典型应用
EPM5032DC-25 适用于 6 应用s: Legacy Industrial Control Logic Replacement, Telecommunications Interface Boards, Aerospace and Military Avionics Systems, Legacy Mainframe Peripheral Boards, Prototype and Qualification Hardware, Test and Measurement Equipment Glue Logic.
Legacy Industrial Control Logic Replacement
The EPM5032DC-25's 32 macrocells and 22 I/O pins are well-suited to replacing networks of discrete 74LS/74HC PALs and SSI glue logic on legacy industrial control boards. With a 25 ns pin-to-pin propagation delay, the device meets timing budgets of older microprocess control loops and PLC I/O scanners. The UV-erasable windowed package supports field re-programming during commissioning or in-service revision, while the CMOS architecture reduces power consumption compared to bipolar PAL equivalents. Design tip: always include an unused I/O pin tied to GND through a 10 kohm resistor to provide a defined logic level during power-up.
推荐
Telecommunications Interface Boards
In telecom interface and backplane applications, the EPM5032DC-25 is used to implement bus arbitration, address decoding, and protocol-state glue logic between microprocessor buses and serial transceiver ASICs. The 25 ns delay supports standard telecom bus speeds (up to approximately 40 MHz internal state machine operation), while the 32 macrocells comfortably fit a full bus decoder plus a small FIFO controller. The ceramic DIP package withstands the thermal and mechanical stresses typical of telecom rack environments. Performance consideration: the device does not include 5V-tolerant I/O on the legacy CMOS process - ensure all driving logic shares the same VCC rail to avoid latch-up.
推荐
Aerospace and Military Avionics Systems
The EPM5032DC-25's windowed ceramic DIP package is favored in aerospace and military avionics applications because it supports repeated UV erasure and reprogramming during qualification, prototype development, and field upgrades. The CMOS architecture offers better radiation tolerance than bipolar PALs of equivalent logic capacity, and the device's deterministic timing (25 ns tPD, fixed setup/hold) simplifies DO-254 and MIL-HDBK-454 timing analysis. The 32 macrocells are sufficient for small avionic bus monitors, discrete-signal glue logic, and redundant-channel control state machines. Application note: aerospace programs typically require lot traceability and certificate of conformance; procure the EPM5032DC-25 from authorized Altera/Intel distributors that can provide full documentation.
推荐
Legacy Mainframe Peripheral Boards
The EPM5032DC-25 is a recognized standard for replacing or maintaining obsolete glue logic on legacy mainframe peripheral boards where the original MAX 5000 footprint is already designed into the PCB. With 32 macrocells and 22 I/O pins, it covers typical peripheral-interface requirements: address decoding, status-register bit manipulation, interrupt-priority encoding, and DMA handshaking. The 25 ns delay budget is comfortable for the bus speeds used in legacy peripheral channels (typically 8-25 MHz). Design tip: when repairing vintage mainframes, the EPM5032DC-25 is preferred over a modern CPLD because it preserves the original timing behavior exactly, avoiding board re-validation.
推荐
Prototype and Qualification Hardware
Engineers use the EPM5032DC-25 in prototype and qualification hardware because the windowed ceramic package allows iterative UV erasure and reprogramming without replacing the silicon, dramatically reducing iteration cost during development. The 32 macrocells fit the typical prototype scope: a single-chip glue-logic replacement for several discrete PALs, a state-machine controller, or a bus interface adapter. The 25 ns delay provides generous timing margin for prototype bring-up, where exact timing is often relaxed. Performance consideration: prototype iteration cycles can be shortened by using the Altera MAX+PLUS II design environment, which supports schematic capture, HDL entry, and direct JEDEC file generation for the EPM5032DC-25.
推荐
Test and Measurement Equipment Glue Logic
In test and measurement instruments (oscilloscopes, logic analyzers, spectrum analyzers), the EPM5032DC-25 serves as a deterministic glue-logic device for trigger logic, channel multiplexing, and front-panel state-machine control. The 25 ns delay supports typical instrument timing budgets, while the CMOS architecture minimizes heat dissipation in densely packed instrument chassis. The 32 macrocells comfortably fit a complete front-panel state machine plus a bus decoder, allowing board-area savings versus discrete PAL implementations. Application note: when designing test equipment for long production life, consider pairing the EPM5032DC-25 with a modern MAX II CPLD on a separate sub-board for future migration while keeping the MAX 5000 in production units.
推荐
推荐产品汇总
工程参考数据： EPM5032DC-25 ——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 | EPM5032DC-20 | EPM5032DC-15 | EPM5032DC | EPM5032DC-2 |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | CDIP-28 (Windowed Ceramic DIP-28) | CDIP-28 (Windowed Ceramic DIP-28) - same | CDIP-28 (Windowed Ceramic DIP-28) - same | CDIP-28 (Windowed Ceramic DIP-28) - same | CDIP-28 (Windowed Ceramic DIP-28) - same |
| Macrocells | 32 | 32 | 32 | 32 | 32 |
| Pin-to-Pin Delay (tPD) | 25 ns | 20 ns | 15 ns | Base grade (typical 25 ns) | DC-2 grade (slower commercial) |
| Architecture | MAX 5000, PAL-Type, single LAB | MAX 5000, PAL-Type, single LAB | MAX 5000, PAL-Type, single LAB | MAX 5000, PAL-Type, single LAB | MAX 5000, PAL-Type, single LAB |
| Erasure Method | UV (windowed ceramic) | UV (windowed ceramic) | UV (windowed ceramic) | UV (windowed ceramic) | UV (windowed ceramic) |
| Technology | CMOS EPROM | CMOS EPROM | CMOS EPROM | CMOS EPROM | CMOS EPROM |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
关键差异点
- Standard 25 ns speed grade for legacy timing budgets （对比 EPM5032DC-20)
- Windowed ceramic package supports UV reprogramming （对比 One-time-programmable PALs (e.g., PALCE16V8))
- 32 macrocells of high-density glue logic in one package （对比 Discrete PAL/SSI networks)
设计说明
The EPM5032DC-25 operates from a single +5V supply on pin 27 (VCC). Estimated: typical CMOS quiescent current is 5-15 mA per macrocell block; at full I/O toggling at 1 MHz, expect total ICC around 80-150 mA. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the VCC pin, plus a bulk 10 uF tantalum or electrolytic on the supply rail. The device is not 5V-tolerant on legacy I/O relative to a 3.3V rail; ensure all driving logic shares the same VCC to prevent latch-up.
For socketed programming and field upgrades, mount the EPM5032DC-25 in a 28-pin DIP socket (e.g., 3M Textool or equivalent low-profile machined-pin socket). This allows easy removal for reprogramming via UV erasure. For production builds, the ceramic DIP can be soldered directly; ensure adequate thermal relief on the through-hole pads to prevent ceramic-package cracking during hand-soldering. Keep trace lengths on the clock and dedicated input pins to less than 50 mm to avoid reflections on the legacy CMOS input structure.
Common pitfalls when using the EPM5032DC-25: (1) Failing to UV-erase before reprogramming - old EPROM cells may retain partial programming that produces unexpected logic behavior; expose to UV for at least 20-30 minutes. (2) Driving I/O pins beyond VCC or below GND - legacy CMOS I/O has clamp diodes that can forward-bias and damage the device. (3) Exceeding the maximum I/O sink/source current of approximately 8 mA per pin - exceeding this can damage the output structure. (4) Mixing the -25, -20, and -15 grades on the same board without verifying timing across all three - faster grades do not behave identically to slower grades in race-sensitive designs.
The EPM5032DC-25's 25 ns pin-to-pin delay budget assumes standard CMOS load (50 pF maximum). Estimated: at 50 pF load, the output rise/fall time is approximately 4-6 ns; derate by 10% for every additional 20 pF of load. For synchronous designs, allocate the tSU (setup time) and tCO (clock-to-output) from the datasheet timing table - never assume the full 25 ns tPD is available as setup margin. Place series termination (33-68 ohm) on clock and high-speed output traces longer than 50 mm to prevent ringing on the legacy CMOS output drivers.
合规信息
RoHS compliance per distributor listings (ICComponents, Jotrin). Lead-free finish confirmed. REACH, halogen-free, and conflict-minerals status not explicitly stated in distributor data - marked as unknown. AEC-Q100 not applicable (PLD, not an automotive-grade IC in the modern AEC-Q sense).
