EPM5032LC-25 - 32-Macrocell MAX 5000 EPLD, 25ns, PLCC-28 | Intel / Altera
料号： EPM5032LC-25 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $15.75 | $157.50 |
| 100 | $12.4 | $1,240.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $8.2 | $8,200.00 |
EPM5032LC-25 概述
An EPLD (Erasable Programmable Logic Device) is a one-time- or UV-erasable non-volatile PLD that combines PAL-type macrocell architecture with a centralized interconnect matrix. EPLDs occupy the historical middle ground between simple PLDs (PAL/GAL) and modern CPLDs/FPGAs, and they remain in service today primarily for legacy board replacements, long-lifecycle industrial systems, and pin-compatible form-factor drop-in redesigns. Within the broader taxonomy, the EPM5032 sits at: EPLD -> Programmable Logic Device (PLD) -> programmable logic -> digital semiconductor.
Key features include 32 macrocells with PAL-type AND/OR planes, 320 product terms, a single global clock network with 62.5 MHz maximum frequency, an in-system programmable (ISP) or windowed-erasable (UV) configuration cell, and 5V CMOS I/O. The PLCC-28 (JEDEC S-PQCC-J28, 1.27 mm terminal pitch) provides socket-compatible prototyping and rework-friendly assembly, which is why the part is still quoted for legacy replacements.
The device's PAL-type macrocell architecture delivers deterministic, glitch-free combinational and registered logic with predictable timing - a property prized in glue-logic, address decoding, and bus-interface replacement. The centralized PIA simplifies place-and-route at the cost of some flexibility versus later LAB-based architectures; the trade-off is acceptable in the EPM5032's typical target applications.
Typical applications include legacy glue-logic replacement, address decoding and chip-select generation in 5V systems, bus-interface bridging (e.g., 8-bit to 16-bit adapters), state-machine and sequencer implementation, industrial control boards requiring long-lifecycle parts, and pin-compatible refresh of older MAX 5000 designs. Designers should also consider it for prototyping PLCC-28 socketed logic before committing to lower-density CPLDs.
When designing with the EPM5032LC-25, ensure all inputs observe the 5V CMOS thresholds and use the recommended 5V ±10% supply. The 25 ns propagation delay suits state-machine and decoder roles up to about 30 MHz; higher-speed interfaces should consider the -20 or -15 speed grades or a newer MAX II / MAX V CPLD. Place decoupling capacitors (0.1 µF ceramic plus 10 µF bulk) as close to VCC and GND as possible, and follow Altera's MAX 5000 programming and in-circuit-test guidelines.
This page synthesizes distributor pricing, same-family drop-in alternatives (EPM5032LC-20, EPM5032LC-15), and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： EPM5032LC-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： EPM5032LC-25 （相同外形与封装尺寸） ——差异在于 Package, Supply Voltage (VCC), Architecture, RoHS Status, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
EPM5032LC-20
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$8.4 / 个
查看数据手册 →EPM5032LC-15
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$8.2 / 个
查看数据手册 →EPM5032JC-25
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
EPM5032JC-20
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$9.75 / 个
查看数据手册 →EPM5032JC
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$13.5 / 个
查看数据手册 →EPM5032DC-25
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.55 / 个
查看数据手册 →EPM5032LC-25 最大额定值与电气特性
| Device Family | MAX 5000 |
| Architecture | PAL-type EPLD (Erasable Programmable Logic Device) |
| Technology | CMOS, UV-erasable / OTP |
| Macrocells | 32 |
| Product Terms | 320 |
| Dedicated Inputs | 7 |
| I/O Pins | 16 bidirectional |
| Total Inputs | 24 (7 dedicated + 16 I/O used as input) |
| Propagation Delay (tPD) | 25 ns |
| Maximum Internal Frequency | 62.5 MHz |
| Supply Voltage (VCC) | 5 V ±10% (4.5 V to 5.5 V) |
| I/O Standard | 5 V CMOS |
| 工作温度 | 0 °C to +70 °C (commercial, "LC" suffix) |
| 封装 | 28-pin PLCC (JEDEC S-PQCC-J28), 1.27 mm pitch |
| 安装类型 | Surface Mount, socket-compatible |
| Configuration Cell | Programmable interconnect array (PIA), OTP / UV-erasable |
| RoHS 状态 | Not RoHS compliant (legacy Altera product) |
EPM5032LC-25 引脚配置
| 引脚 1 | I/O — Bidirectional I/O pin 0 |
| 引脚 2 | I/O — Bidirectional I/O pin 1 |
| 引脚 3 | I/O — Bidirectional I/O pin 2 |
| 引脚 4 | I/O — Bidirectional I/O pin 3 |
| 引脚 5 | I/O — Bidirectional I/O pin 4 |
| 引脚 6 | I/O — Bidirectional I/O pin 5 |
| 引脚 7 | I/O — Bidirectional I/O pin 6 |
| 引脚 8 | I/O — Bidirectional I/O pin 7 |
| 引脚 9 | DIN — Dedicated input 0 |
| 引脚 10 | DIN — Dedicated input 1 |
| 引脚 11 | DIN — Dedicated input 2 |
| 引脚 12 | GND — Ground |
| 引脚 13 | DIN — Dedicated input 3 |
| 引脚 14 | DIN — Dedicated input 4 |
| 引脚 15 | DIN — Dedicated input 5 |
| 引脚 16 | DIN — Dedicated input 6 |
| 引脚 17 | I/O — Bidirectional I/O pin 8 |
| 引脚 18 | I/O — Bidirectional I/O pin 9 |
| 引脚 19 | I/O — Bidirectional I/O pin 10 |
| 引脚 20 | I/O — Bidirectional I/O pin 11 |
| 引脚 21 | I/O — Bidirectional I/O pin 12 |
| 引脚 22 | I/O — Bidirectional I/O pin 13 |
| 引脚 23 | I/O — Bidirectional I/O pin 14 |
| 引脚 24 | I/O — Bidirectional I/O pin 15 |
| 引脚 25 | VCC — +5 V supply |
| 引脚 26 | NC — Not connected (per datasheet) |
| 引脚 27 | NC — Not connected (per datasheet) |
| 引脚 28 | NC — Not connected (per datasheet) |
典型应用
EPM5032LC-25 适用于 7 应用s: Legacy Glue-Logic Replacement, Address Decoding and Chip-Select Generation, Bus-Interface Bridging (8-bit to 16-bit, etc.), State Machine and Sequencer Implementation, Industrial Control Boards (Long-Lifecycle), Pin-Compatible Refresh of MAX 5000 Designs, Legacy Prototyping and Education.
Legacy Glue-Logic Replacement
The EPM5032LC-25 is a classic choice for replacing 5V TTL/CMOS glue logic in legacy systems. With 32 PAL-type macrocells and 320 product terms, it consolidates dozens of 74-series gates into a single PLCC-28 device, reducing board area and BOM count. Its 25 ns propagation delay comfortably handles combinational paths up to about 30 MHz, and the 5V CMOS I/O matches the original TTL thresholds without level shifters. Best fit: production-line rebuilds of legacy 5V boards where the original PAL/GAL parts are obsolete. Designers should leave one NC pin open for in-system test access.
推荐
Address Decoding and Chip-Select Generation
The EPM5032LC-25's 7 dedicated inputs plus 16 I/O pins accept a full 24-bit address bus, and its 320 product terms can decode multiple chip-select outputs without exhausting macrocell resources. The 25 ns propagation delay adds at most one wait-state to a 30 MHz CPU memory cycle, which is acceptable for most peripheral decoding. The PLCC-28 socket lets prototype boards iterate before committing to a soldered assembly. Best fit: 80C186, 68EC000, and 80188 system designs needing decode for SRAM, ROM, and peripheral chips. Use one macrocell per output enable to keep timing deterministic.
推荐
Bus-Interface Bridging (8-bit to 16-bit, etc.)
The EPM5032LC-25 is widely used to bridge between mismatched bus widths in legacy 5V systems - for example, multiplexing an 8-bit peripheral onto a 16-bit data bus or generating the upper-byte write strobe. Its 16 bidirectional I/O pins are sufficient for 8-bit data plus control signals, and the 25 ns delay adds only a fraction of a bus cycle. The PLCC-28 footprint allows the bridge to sit adjacent to the bus connector for short, clean traces. Best fit: PC/104, ISA, and VME bus adapters where modern FPGAs are overkill.
推荐
State Machine and Sequencer Implementation
With 32 macrocells and a 62.5 MHz maximum internal clock frequency, the EPM5032LC-25 implements state machines and sequencers that are awkward to build in discrete 74LS logic. Each macrocell holds an 8-bit register, so the part can realize a 32-state FSM or a 32-bit-wide sequencing register with predictable timing. The 25 ns propagation delay fits sequencers clocked up to about 25 MHz, and the UV-erasable (or OTP) configuration preserves state through power cycles. Best fit: industrial controllers, test-equipment sequencers, and legacy peripheral controllers.
推荐
Industrial Control Boards (Long-Lifecycle)
The EPM5032LC-25 is a workhorse on long-lifecycle industrial controllers where 15-to-25-year field support is mandatory. Its PLCC-28 package is socket-compatible, which simplifies field replacement; its 5V CMOS I/O is robust against industrial noise; and its PAL-type macrocell architecture is deterministic and well-understood by long-tenured technicians. The 0 °C to +70 °C commercial temperature range (LC suffix) is acceptable for climate-controlled cabinets, while the EPM5032JC-25 industrial variant covers harsher enclosures. Best fit: PLC backplanes, motor-drive interface boards, and SCADA I/O cards.
推荐
Pin-Compatible Refresh of MAX 5000 Designs
When a board originally designed around a MAX 5000 EPLD (EPM5032, EPM5064, etc.) needs repair or refresh, the EPM5032LC-25 is the most readily available drop-in part. Its PLCC-28 footprint, 32-macrocell architecture, and 5V CMOS I/O match the original socket exactly, so replacement requires no board rework. The same bitstream that programs the original part can be reloaded into the EPM5032LC-25, provided the speed grade change does not violate the original timing budget. Best fit: maintenance depots and third-party repair shops servicing installed-base MAX 5000 hardware.
推荐
Legacy Prototyping and Education
The EPM5032LC-25 remains a useful teaching aid for university digital-design labs because its PAL-type macrocell architecture exposes students to product-term allocation, PIA routing, and JTAG-free ISP flows without the complexity of modern FPGA toolchains. The PLCC-28 socket on a standard breadboard adapter lets students erase and reprogram the part (windowed UV variant) or treat it as one-time programmable. The 32-macrocell capacity is enough for laboratory exercises on FSMs, decoders, and bus arbiters. Best fit: EE undergraduate labs and continuing-education short courses on PLD design.
推荐
推荐产品汇总
工程参考数据： EPM5032LC-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 | EPM5032LC-20 | EPM5032LC-15 | EPM5032JC-25 | EPM5032JC-20 | EPM5032JC | EPM5032DC-25 |
|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | PLCC-28 (JEDEC S-PQCC-J28) | PLCC-28 (JEDEC S-PQCC-J28) - same | PLCC-28 (JEDEC S-PQCC-J28) - same | PLCC-28 (JEDEC S-PQCC-J28) - same | PLCC-28 (JEDEC S-PQCC-J28) - same | PLCC-28 (JEDEC S-PQCC-J28) - same | PLCC-28 (JEDEC S-PQCC-J28) - same |
| Macrocells | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Operating Temperature | 0 °C to +70 °C (commercial) | 0 °C to +70 °C (commercial) | 0 °C to +70 °C (commercial) | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | 0 °C to +70 °C (commercial) |
| Supply Voltage | 5 V ±10% | 5 V ±10% | 5 V ±10% | 5 V ±10% | 5 V ±10% | 5 V ±10% | 5 V ±10% |
| Maximum Internal Frequency | 62.5 MHz | 62.5 MHz | 62.5 MHz | 62.5 MHz | 62.5 MHz | 62.5 MHz | 62.5 MHz |
| Product Terms | 320 | 320 | 320 | 320 | 320 | 320 | 320 |
| Configuration Cell Type | UV-erasable / OTP | UV-erasable / OTP | UV-erasable / OTP | UV-erasable / OTP | UV-erasable / OTP | UV-erasable / OTP | Ceramic windowed UV-erasable |
关键差异点
- Same-family faster drop-in for high-speed decode roles （对比 EPM5032LC-20)
- Industrial-temperature variant available in the same package （对比 EPM5032JC-25)
- Reprogrammable UV-erasable ceramic variant for field reconfiguration （对比 EPM5032DC-25)
设计说明
Estimated: at 5 V supply and 62.5 MHz toggling all 16 I/O pins with 50 pF loads, ICC can reach 80 to 120 mA. Place a 0.1 µF ceramic decoupling capacitor within 5 mm of the VCC pin (pin 25) and a 10 µF tantalum or ceramic bulk capacitor within 25 mm. Add a ferrite bead on the VCC trace if the EPLD shares a 5 V plane with switching regulators. The EPM5032LC-25 has no power-on-reset (POR) spec beyond VCC ramp time, so keep the ramp monotonic and slower than 100 ms to avoid PROM/EPROM latch-up during programming.
Use a PLCC-28 socket (e.g., 3M Textool or Augat) on prototype boards to simplify device swap and UV erasure. Keep I/O traces shorter than 50 mm to avoid ringing on the 5 V CMOS edges; series-damp each output with 33 Ω if the trace exceeds 25 mm. Provide a ground plane on the layer directly beneath the device for thermal dissipation and return-current continuity. Leave the three NC pins (26, 27, 28) accessible as test points in case the bitstream routes signals there in future revisions.
Three pitfalls to avoid with the EPM5032LC-25: (1) Do not apply 3.3 V signals to inputs - the part uses 5 V CMOS thresholds and 3.3 V is below VIL max, causing undefined logic levels. (2) Do not exceed 7 mA source/sink per I/O - the older CMOS output stage is weaker than modern CPLDs and will sag. (3) Do not hot-plug a programmed device into a live 5 V board - the EPROM cell can latch if VCC rises faster than 1 V/µs. Add a 100 Ω series resistor on VCC if hot-swap is unavoidable.
Estimated: route the global clock on pin 9 (DIN0) as a guarded trace with 4× to 8× dielectric clearance on each side, and place a 33 Ω series resistor within 10 mm of the EPLD clock pin to dampen reflections. Group all dedicated inputs on one side of the package (pins 9 to 11 and 13 to 16) and reserve the opposite side (pins 17 to 24) for outputs driving the same bus to minimize PIA congestion. Tie any unused dedicated inputs to GND through 10 kΩ resistors to prevent floating CMOS inputs.
合规信息
Legacy Altera MAX 5000 product with tin-lead (SnPb) PLCC-28 terminations - not RoHS compliant. AEC-Q100 not applicable (this is a commercial/industrial PLD, not an automotive-grade IC). REACH, halogen-free, and conflict-minerals status not stated in the available datasheet excerpts; contact Altera/Intel for confirmation before EU-bound shipments.
