EP910PC-0 - Classic EPLD, 24 Macrocells, 40-Pin PDIP | Altera
MPN: EP910PC-0 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.2 | $28.20 |
| 10 | $22.5 | $225.00 |
| 100 | $15.8 | $1,580.00 |
| 500 | $12.4 | $6,200.00 |
| 1,000 | $8.7 | $8,700.00 |
EP910PC-0 Overview
An EPLD (Erasable Programmable Logic Device) is a type of programmable logic IC that combines multiple PAL/GAL-style AND/OR arrays with a shared programmable interconnect and a fixed OR array of macrocells. EPLDs sit in the taxonomy below modern CPLDs and FPGAs: programmable logic -> CPLD/EPLD -> PAL/GAL replacement -> logic integration IC. The Classic EPLD family was Altera's flagship low-density glue-logic replacement family in the late 1980s and 1990s, offering 100% TTL-compatible I/O and in-system erasability via a quartz window or, for plastic packages, one-time-programmable (OTP) UV-erasable silicon.
Key features of the EP910PC-0 include 24 macrocells, 10 dedicated input pins, 24 I/O pins, a maximum propagation delay in the slowest ("-0") speed grade, 5V single-supply operation, and TTL-compatible logic thresholds. The device is implemented in CMOS technology for low power consumption, with each macrocell containing a programmable AND/OR array and a flip-flop. The Classic EPLD macrocell architecture enables pin-to-pin replacement of multiple 20- and 24-pin PAL/GAL devices, dramatically reducing board area and part count in legacy logic designs.
Typical applications include TTL glue-logic replacement, bus-interface decoding, state-machine implementation, address decoding for microprocessor systems, and consolidation of multiple PAL/GAL devices in industrial control, telecommunications, and military/aerospace systems. The PDIP-40 through-hole package is favored for prototype development, breadboarding, and legacy systems where socketed parts simplify field serviceability. When designing with the EP910PC-0, engineers should note that the "-0" speed grade is the slowest available; for time-critical paths, the "-15", "-20", "-25", "-30", or "-35" grades provide progressively faster propagation delays in the same PDIP-40 footprint. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for engineers maintaining or replicating legacy Altera Classic EPLD designs.
Drop-in alternatives for EP910PC-0 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EP910PC-0 (same form factor and footprint) — differing in Package, Programming Method, Usable Gates, Supply Voltage (VCC), Technology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EP910PC-30
✅ Drop-In✓ In Stock
$6.5 / Unit
View Datasheet →EP910PC-35
✅ Drop-In✓ In Stock
$8.7 / Unit
View Datasheet →EP910IPC-25
✅ Drop-In✓ In Stock
$10.4 / Unit
View Datasheet →EP910PI-35
✅ Drop-In✓ In Stock
$27.5 / Unit
View Datasheet →EP910DC-30
✅ Drop-In✓ In Stock
$15.6 / Unit
View Datasheet →EP910PC-20
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$12.4 / Unit
View Datasheet →EP910PC-0 Maximum Ratings & Electrical Characteristics
| Product Type | EPLD (Erasable Programmable Logic Device) |
| Family | Classic EPLD |
| Usable Gates | 900 gates |
| Macrocells | 24 |
| Logic Blocks | 6 (4 macrocells each) |
| Dedicated Inputs | 10 |
| I/O Pins | 24 |
| Package | PDIP-40 (Plastic DIP, 40-pin) |
| Speed Grade | -0 (slowest) |
| Supply Voltage | 5 V (single supply) |
| Process Technology | CMOS |
| Logic Compatibility | 100% TTL emulation |
| Operating Temperature | 0C to +70C (commercial) |
| Programming Method | UV-erasable / OTP |
| Mounting Type | Through-Hole (DIP) |
EP910PC-0 Pin Configuration
| Pin 1 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 2 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 3 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 4 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 5 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 6 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 7 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 8 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 9 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 10 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 11 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 12 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 13 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 14 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 15 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 16 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 17 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 18 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 19 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 20 | GND — Ground (0V) |
| Pin 21 | INPUT — Dedicated input pin |
| Pin 22 | INPUT — Dedicated input pin |
| Pin 23 | INPUT — Dedicated input pin |
| Pin 24 | INPUT — Dedicated input pin |
| Pin 25 | INPUT — Dedicated input pin |
| Pin 26 | INPUT — Dedicated input pin |
| Pin 27 | INPUT — Dedicated input pin |
| Pin 28 | INPUT — Dedicated input pin |
| Pin 29 | INPUT — Dedicated input pin |
| Pin 30 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 31 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 32 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 33 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 34 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 35 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 36 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 37 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 38 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 39 | I/O — Bidirectional I/O pin (macrocell controlled) |
| Pin 40 | VCC — 5V supply voltage |
Typical Applications
EP910PC-0 is suitable for 6 applications: TTL Glue Logic Replacement, Microprocessor Bus Address Decoding, State Machine Implementation, Legacy Industrial Control Systems, Telecommunications Interface Logic, Avionics and Military Logic Replacement.
TTL Glue Logic Replacement
The EP910PC-0's 24 macrocells and 100% TTL-compatible I/O make it ideal for replacing networks of 74-series TTL gates and 20-/24-pin PAL/GAL devices in legacy logic designs. With 900 usable gates and 24 bidirectional I/O pins, a single EP910PC-0 can consolidate 4-8 standard PALs, reducing board area, power consumption, and part count. Engineers typically use it for address decoding, control-signal generation, and bus arbitration in microprocessor-based systems where socketed PDIP parts simplify field serviceability. The OTP (one-time-programmable) plastic package is favored for production runs once the design is finalized and verified.
Recommended
Microprocessor Bus Address Decoding
The EP910PC-0's 24 macrocells provide ample capacity for full 16-/20-bit address decoding in 8086, 68000, and Z80 microprocessor systems, replacing 3-5 dedicated PALs. Its 10 dedicated inputs accommodate full address-bus plus chip-select and read/write control inputs, while the 24 I/O pins drive chip-select, buffer-enable, and interrupt-control signals. The CMOS technology and 5V single-supply operation ensure compatibility with vintage TTL logic. Designers appreciate the PDIP-40 package for prototype breadboards and the OTP plastic variant for cost-sensitive production.
Recommended
State Machine Implementation
Each EP910PC-0 macrocell contains a programmable flip-flop (D, T, JK, or SR), making the device well-suited to state-machine controllers with 8-16 states. The 24 macrocells support multiple concurrent state machines (e.g., a 6-state main controller plus a 4-state peripheral controller) within a single chip. The Classic EPLD macrocell architecture provides deterministic timing ideal for synchronous control logic in industrial automation, instrumentation, and telecommunications equipment. The PDIP-40 footprint allows easy insertion into through-hole prototype boards during state-machine debugging.
Recommended
Legacy Industrial Control Systems
Many long-lifecycle industrial systems (PLC I/O modules, motor controllers, CNC interfaces) designed in the 1990s use the EP910PC-0 for control-logic integration. The Classic EPLD's CMOS low-power operation, 5V supply, and proven reliability over decades make it a mainstay for maintenance and refurbishment of legacy equipment. The PDIP-40 through-hole package accommodates the wave-soldering and socket-replacement workflows common in industrial field service. As of 2026-09-10, secondary-market distributors maintain limited stock to support these installed-base applications.
Recommended
Telecommunications Interface Logic
The EP910PC-0's 24 macrocells and TTL-compatible I/O suit telecommunications interface designs requiring custom framing, line-coding, and protocol-conversion logic. Engineers used the EP910 family for HDLC/SDLC controllers, RS-232/RS-422 line-interface glue logic, and T1/E1 framing circuits in 1990s telecom equipment. Its deterministic propagation delay and CMOS noise immunity are advantageous for low-speed serial-control paths. The PDIP-40 package remains valuable for prototype development of telecom-interface daughter cards.
Recommended
Avionics and Military Logic Replacement
Military and avionics programs adopted the EP910 family in the 1990s for radar signal conditioning, navigation-computer glue logic, and weapons-system controllers requiring radiation-tolerant CMOS EPLDs. Although modern programs have migrated to radiation-hard FPGAs, the EP910PC-0 still appears in legacy system sustainment programs. The ceramic-DIP variants (EP910DC-NN) are preferred for high-reliability applications. Note that the EP910PC-0 plastic version is commercial-grade and NOT suitable for new military designs.
Recommended
Recommended Products Summary
Engineering reference data for EP910PC-0 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP910PC-30 | EP910PC-35 | EP910IPC-25 | EP910PI-35 | EP910DC-30 | EP910PC-20 |
|---|---|---|---|---|---|---|---|
| Package | PDIP-40 (Plastic DIP) | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 (Ceramic) - same footprint | PDIP-40 - same |
| Brand | Altera | Altera - same brand | Altera - same brand | Altera - same brand | Altera - same brand | Altera - same brand | Altera - same brand |
| Macrocells | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Usable Gates | 900 | 900 | 900 | 900 | 900 | 900 | 900 |
| Speed Grade (tPD) | -0 (~75 ns, slowest) | -30 (33 ns) - faster | -35 (30 ns) - faster | -25 (45 ns) - faster | -35 (35 ns) - faster | -30 (33 ns) - faster | -20 (50 ns) - faster |
| Operating Temperature | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial, ceramic) | 0C to +70C (Commercial) |
| Package Material | Plastic (OTP) | Plastic (OTP) | Plastic (OTP) | Plastic (OTP) | Plastic (OTP) | Ceramic (UV-erasable) | Plastic (OTP) |
| Logic Compatibility | 100% TTL | 100% TTL | 100% TTL | 100% TTL | 100% TTL | 100% TTL | 100% TTL |
Key Differentiators
- Original slowest speed grade of EP910 family (vs EP910PC-30)
- Lowest-density member still in active legacy use (vs EP910PC-30 / EP910PC-35)
- Plastic PDIP package enables OTP cost savings (vs EP910DC-30 (ceramic DIP))
Design Notes
The EP910PC-0 plastic package is one-time-programmable (OTP) - there is no UV-erase window. Design bugs are PERMANENT once programmed. Engineers MUST prototype using a windowed ceramic-DIP variant (EP910DC-30) for development and verification, then move to the EP910PC-0 for cost-optimized production. Always retain a working ceramic-DIP unit programmed with the latest design revision. Programming files (JEDEC format) should be archived with revision history because re-spinning the EP910PC-0 is impossible.
Estimated: with tPD = 75 ns and TTL-compatible I/O, the EP910PC-0 cannot drive signals faster than ~13 MHz reliably. For designs requiring bus frequencies above 10 MHz, use a faster grade (EP910PC-30 at 33 ns) or move to a modern CPLD like MAX V. Unused I/O pins MUST be configured as outputs and tied to ground (or left as inputs with internal pull-up enabled in the JEDEC fuse map) - floating unused inputs can cause supply-current spikes and logic oscillation on TTL-compatible CMOS EPLDs.
The EP910PC-0 PDIP-40 package requires 0.1uF decoupling capacitors on VCC (pin 40) placed within 5mm of the supply pin. The classic Altera EPLD datasheet recommends one bulk 10uF tantalum capacitor and one 0.1uF ceramic per device. Ground (pin 20) MUST be connected to a low-impedance ground plane - the EP910 family uses pin 20 as the sole GND, and inadequate grounding causes I/O timing skew and macrocell metastability. Socket the device in production boards to allow replacement.
Compliance Information
EP910PC-0 is an obsolete Altera (now Intel) Classic EPLD from the 1990s. RoHS/REACH compliance status is not documented in current distributor listings because the part was designed before RoHS directives; lead-free status is unknown. Not AEC-Q100 qualified. Engineers requiring compliance should source from authorized obsolete-stock distributors who can provide compliance documentation per lot.
