EP910IPC-12 - Classic 24-Macrocell EPLD, 5V, 40-Pin PDIP | Altera
MPN: EP910IPC-12 ✗ Cuối đờiEP910IPC-12 Tóm tắt
An EPLD (Erasable Programmable Logic Device) is a non-volatile programmable logic device that combines the flexibility of a PLD with on-chip macrocell architecture. In the broader hierarchy, the EPLD sits between simple PAL/GAL devices and larger CPLDs/FPGAs - it offers erasable reprogrammability, deterministic timing, and a fixed but flexible macrocell structure suited to medium-complexity logic replacement. The Classic family from Altera was the precursor to the MAX series and introduced 24 macrocells with predictable pin-to-pin delays, making them suitable for synchronous and asynchronous state machines, address decoding, and peripheral control.
Key features of the EP910IPC-12 include 24 macrocells, 10 dedicated input pins, 24 I/O pins, 12 ns pin-to-pin propagation delay (tPD), and a 76.9 MHz internal fMAX for registered logic. The device supports in-system UV-erase (windowed versions) or one-time-programmable (OTP) operation, includes a JTAG-style test mode for functional verification during production, and offers 3.3V/5V mixed-mode I/O via the Altera MAX+PLUS II development environment.
Architecturally, the EP910IPC-12 uses a sum-of-products PLA feed driving a flexible macrocell flip-flop array, with global and per-macrocell clock controls. Each macrocell contains a programmable D/T/J-K flip-flop, output enable polarity, and feedback selection, allowing the device to implement registered, combinatorial, and I/O-buried logic with deterministic 12 ns delays. The 5V VCC and TTL-compatible I/O make the part compatible with legacy 74-series logic and 5V microprocessors.
Typical applications include bus-interface and address-decoding glue logic for 8086/68000-era microprocessor systems, peripheral controllers, custom state machines, board-level timing generators, and legacy replacement of 74LS/74ALS discrete logic. The 40-pin PDIP package simplifies through-hole prototyping and field-repair scenarios.
When designing with the EP910IPC-12, note that the Classic EPLD uses the legacy MAX+PLUS II toolchain (modern Quartus does not directly target this family). For new designs the MAX series (EPM7128, EPM3064) is recommended, but the EP910IPC-12 remains a useful part for sustaining legacy 5V systems.
This page synthesizes distributor availability, parametric drop-in alternatives from the EP910 family, and design notes not found in the original datasheet.
Bộ thay thế dễ dàng lắp đặt cho EP910IPC-12 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EP910IPC-12 (cùng hình factor và footprint) — khác nhau ở Package, Family, Supply Voltage (VCC), Propagation Delay (tPD), Programming Method.
EP910IPC-25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP910ILC-12
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP910IDC-15
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP910DC-15
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP910DC-30
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP910ILC-25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP910IPC-12 Tỷ lệ tối đa & tính chất điện
| Family | Classic EPLD |
| Macrocells | 24 |
| Usable Gates | 450 |
| Maximum Operating Frequency (fMAX) | 76.9 MHz |
| Pin-to-Pin Propagation Delay (tPD) | 12 ns |
| Supply Voltage (VCC) | 4.75 V to 5.25 V (5 V nominal) |
| Dedicated Inputs | 10 |
| I/O Pins | 24 |
| Hộp | 40-pin PDIP |
| Kiểu lắp đặt | Through Hole |
| Technology | CMOS EPLD (UV-erasable or OTP) |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Programming Toolchain | MAX+PLUS II |
| Logic Capacity | Equivalent to ~24 PAL16V8s |
Cấu hình chân EP910IPC-12
| Chân 1 | I1 — Dedicated input 1 |
| Chân 2 | I2 — Dedicated input 2 |
| Chân 3 | I3 — Dedicated input 3 |
| Chân 4 | I4 — Dedicated input 4 |
| Chân 5 | I5 — Dedicated input 5 |
| Chân 6 | I6 — Dedicated input 6 |
| Chân 7 | I7 — Dedicated input 7 |
| Chân 8 | I8 — Dedicated input 8 |
| Chân 9 | I9 — Dedicated input 9 |
| Chân 10 | I10 — Dedicated input 10 |
| Chân 11 | IO1 — Bidirectional I/O 1 |
| Chân 12 | IO2 — Bidirectional I/O 2 |
| Chân 13 | IO3 — Bidirectional I/O 3 |
| Chân 14 | IO4 — Bidirectional I/O 4 |
| Chân 15 | IO5 — Bidirectional I/O 5 |
| Chân 16 | IO6 — Bidirectional I/O 6 |
| Chân 17 | IO7 — Bidirectional I/O 7 |
| Chân 18 | IO8 — Bidirectional I/O 8 |
| Chân 19 | IO9 — Bidirectional I/O 9 |
| Chân 20 | IO10 — Bidirectional I/O 10 |
| Chân 21 | GND — Ground |
| Chân 22 | IO11 — Bidirectional I/O 11 |
| Chân 23 | IO12 — Bidirectional I/O 12 |
| Chân 24 | IO13 — Bidirectional I/O 13 |
| Chân 25 | IO14 — Bidirectional I/O 14 |
| Chân 26 | IO15 — Bidirectional I/O 15 |
| Chân 27 | IO16 — Bidirectional I/O 16 |
| Chân 28 | IO17 — Bidirectional I/O 17 |
| Chân 29 | IO18 — Bidirectional I/O 18 |
| Chân 30 | IO19 — Bidirectional I/O 19 |
| Chân 31 | IO20 — Bidirectional I/O 20 |
| Chân 32 | IO21 — Bidirectional I/O 21 |
| Chân 33 | IO22 — Bidirectional I/O 22 |
| Chân 34 | IO23 — Bidirectional I/O 23 |
| Chân 35 | IO24 — Bidirectional I/O 24 |
| Chân 36 | TEST — Factory test pin (vendor-specific) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | VCC — +5V supply |
Ứng dụng tiêu biểu
EP910IPC-12 phù hợp cho 6 Áp dụngs: 8086/68000 Bus Address Decoding, Custom State Machine Controllers, Peripheral Chip-Select Generation, Board-Level Timing and Clock Generation, Legacy 74LS/74ALS Discrete Logic Replacement, Prototype and Educational Logic Design.
8086/68000 Bus Address Decoding
The EP910IPC-12's 24 macrocells and 12 ns deterministic tPD make it ideal for legacy 8086, 8088, 68000, and Z80 microprocessor bus address decoding. Each macrocell can implement a sum-of-products product term covering 8-16 address lines, replacing 4-8 discrete 74LS138/74LS139 decoder chips with a single programmable device. The 12 ns tPD comfortably fits within one 8 MHz bus cycle (125 ns), allowing chip-select generation for memory and peripheral banks without wait-state insertion. The Classic EPLD's predictable timing eliminates the gate-delay variability of discrete TTL, and in-system UV-erase allows last-minute address-map revisions during prototype bring-up.
Được đề xuất
Custom State Machine Controllers
The 24-macrocell Classic EPLD architecture and 76.9 MHz fMAX make the EP910IPC-12 a strong fit for custom state-machine controllers in industrial and instrumentation equipment. Each macrocell contains a programmable D/T/J-K flip-flop with local feedback, allowing the EP910IPC-12 to implement 6-12 state FSMs (Finite State Machines) with one-hot, binary, or Gray encoding. The deterministic 12 ns tPD enables asynchronous state transitions without metastability hazards when combined with external synchronizers. Typical implementations include conveyor controllers, motor step-sequencers, protocol converters, and test-fixture sequencers where 5V TTL logic levels and predictable timing matter.
Được đề xuất
Peripheral Chip-Select Generation
The EP910IPC-12 excels at peripheral chip-select and strobe generation in 5V microcontroller and microprocessor systems. With 24 I/O pins and 10 dedicated inputs, the device can monitor up to 34 address/control signals and generate up to 24 independent chip-select outputs, replacing an entire board of 74LS138/139/688 glue logic. The 12 ns tPD ensures chip-selects settle before the peripheral's setup time, and the 5V TTL-compatible I/O interfaces directly with 8051, 68HC11, Z80, and similar 5V MCUs. Reprogrammability via UV window allows last-minute peripheral-map revisions without PCB rework.
Được đề xuất
Board-Level Timing and Clock Generation
The EP910IPC-12's 76.9 MHz fMAX and macrocell flip-flops make it suitable for board-level timing generators, clock dividers, and pulse-width modulation. Each macrocell flip-flop can be configured as a divide-by-2 stage, and chained macrocells create deep binary counters, programmable baud-rate generators, and watchdog timers. The 5V TTL I/O drives 74LS/74F loads directly without buffering. Industrial controllers, instrumentation front-ends, and legacy communication cards commonly used the EP910IPC-12 to generate non-standard clock rates (e.g., 1.8432 MHz, 2.4576 MHz for UART baud-rate generation) from a system master clock.
Được đề xuất
Legacy 74LS/74ALS Discrete Logic Replacement
The EP910IPC-12 was specifically designed to consolidate 74LS, 74ALS, and 74F discrete gates, muxes, latches, and flip-flops onto a single programmable device. With 450 usable gates, the EP910IPC-12 can replace approximately 24 standard 16-pin SSI/MSI logic packages (e.g., 74LS00, 74LS138, 74LS374), reducing PCB area by 60-80% and improving noise immunity through fewer inter-chip connections. Aerospace, military, and industrial OEMs adopted the Classic EPLD family in the late 1980s and 1990s for board-level miniaturization; sustaining these legacy systems today requires continued EP910IPC-12 supply via Rochester Electronics.
Được đề xuất
Prototype and Educational Logic Design
The EP910IPC-12 in the 40-pin PDIP through-hole package is ideal for breadboard prototyping, university digital-logic laboratories, and educational CPLD tutorials. The DIP footprint allows hand-soldering and IC-socket insertion, eliminating the need for fine-pitch QFP soldering stations. Combined with the MAX+PLUS II student-version toolchain, the EP910IPC-12 has been used in thousands of EE/CE courses to teach programmable logic, sum-of-products minimization, and macrocell architecture. While the MAX II/MAX V family has largely superseded the Classic series for new designs, the EP910IPC-12 remains a teaching staple for understanding historical EPLD architecture.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EP910IPC-12 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EP910IPC-25 | EP910ILC-12 | EP910IDC-15 | EP910DC-15 | EP910DC-30 | EP910ILC-25 |
|---|---|---|---|---|---|---|---|
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Macrocells | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Propagation Delay (tPD) | 12 ns | 25 ns | 12 ns | 15 ns | 15 ns | 30 ns | 25 ns |
| Maximum Frequency (fMAX) | 76.9 MHz | ~40 MHz | 76.9 MHz | ~62.5 MHz | ~62.5 MHz | ~33 MHz | ~40 MHz |
| Supply Voltage | 5V | 5V | 5V | 5V | 5V | 5V | 5V |
| Temperature Grade | Industrial (-40C to +85C) | Industrial | Industrial | Industrial | Commercial | Commercial | Industrial |
| Lifecycle Status | Obsolete (Rochester sustained) | Obsolete (Rochester sustained) | Obsolete (Rochester sustained) | Obsolete (Rochester sustained) | Obsolete (Rochester sustained) | Obsolete (Rochester sustained) | Obsolete (Rochester sustained) |
Bảo phân biệt quan trọng
- Fastest speed grade in the EP910 Classic EPLD family (vsEP910IPC-25)
- Drop-in compatible with full EP910 Classic 40-pin PDIP family (vsEP910ILC-12)
- Sustained long-term supply via Rochester Electronics (vsModern MAX II CPLD (EPM240T100C5N))
Ghi chú thiết kế
Estimated: Do not attempt to program the EP910IPC-12 with modern Quartus software - the Classic EPLD family is supported only by the legacy Altera MAX+PLUS II toolchain (versions 9.x and earlier). MAX+PLUS II runs on Windows XP/2000 era hardware or in DOS-box emulation. Designers migrating from EP910 to MAX II/MAX V must redraw schematics, reassign pins, and regenerate JEDEC files because the macrocell architecture, programming algorithm, and JTAG chain differ significantly. Always verify the JEDEC fuse-map with a second tool (e.g., third-party JEDEC viewers) before committing to ceramic or windowed production units.
The EP910IPC-12 requires a stable 5V +/- 5% supply (4.75V to 5.25V). Decouple VCC (pin 40) with a 0.1 uF ceramic capacitor placed within 5 mm of the package, plus a 10 uF tantalum or aluminum bulk capacitor on the same rail. The Classic EPLD's I/O pins can drive 25 mA per pin (DC sink) and source 4 mA (DC source), so designing for sink-loaded TTL loads (e.g., 74LS inputs) is straightforward; for source-loaded loads (e.g., LED indicators) ensure the 4 mA budget is respected or buffer with an external transistor.
For 40-pin PDIP through-hole designs, route all 24 bidirectional I/O signals on one PCB side and all 10 dedicated inputs on the other, leaving pins 21 (GND), 36 (TEST), 37-39 (NC), and 40 (VCC) as the power/test periphery. Keep signal traces under 50 mm to avoid reflections on the 76.9 MHz fMAX signals. Place a ground plane beneath the IC to provide a low-impedance return path and to reduce EMI from the high-speed macrocell outputs.
Thông tin tuân thủ
RoHS and lead-free status not explicitly stated in available datasheet extracts; the EP910IPC-12 is an obsolete Altera part sustained by Rochester Electronics. Refer to Rochester Electronics' product documentation for current compliance certifications.
