EPM5032DI-25 - 32-Macrocell UV PLD, 25ns, CMOS | Altera MAX 5000
MPN: EPM5032DI-25 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $32.75 | $327.50 |
| 100 | $26.4 | $2,640.00 |
| 500 | $21.95 | $10,975.00 |
| 1,000 | $18.2 | $18,200.00 |
EPM5032DI-25 Overview
A PLD (Programmable Logic Device) is a type of semiconductor integrated circuit that can be configured by the end user to implement custom digital logic functions, sitting hierarchically between discrete 74-series glue logic and modern FPGAs in the programmable logic taxonomy. The MAX 5000 family is one of Altera's first-generation high-density erasable PLDs, using a Programmable Interconnect Array (PIA) to route signals between macrocells, providing higher integration than the simpler PAL/GAL predecessors while remaining erasable in-system via UV light exposure through the package window.
Key features include 32 logic macrocells, 320 product terms, 16 bidirectional I/O pins, 7 dedicated inputs, and 24 total pins available to the logic array. The device supports 1 global clock input, has 16 registered output flip-flops, and includes 1 external clock pin. Programmable macrocell flip-flops can be configured as D, T, JK, or SR types for sequential logic implementation. The device operates from a single 5 V supply and supports TTL-compatible I/O levels.
The MAX 5000 architecture combines AND-OR sum-of-products logic with user-configurable output macrocells. Each macrocell contains a programmable flip-flop, output enable control, and feedback path to the AND array. The Programmable Interconnect Array (PIA) provides fully connected routing between all macrocells and pins. This architecture is well suited to state-machine, decoder, glue-logic and bus-interface functions where a few dozen registers replace multiple 74LS/74F packages.
Typical applications include TTL/CMOS glue logic replacement, address decoding and chip-select generation, state machines, bus arbitration, and timing/sequencer logic in industrial, telecommunications and military systems. Because the part is windowed ceramic DIP, it is intended for development, prototype, and low-volume production where field re-programmability via UV erasure is acceptable.
When designing with this part, ensure the ceramic DIP package is socketed (not soldered) to permit UV erasure, use Altera's MAX+PLUS II or legacy A+PLUS development software for fitter and simulation, and verify timing closure at the 25 ns tPD corner across process, voltage and temperature. Note that the MAX 5000 family has been NRND for many years and should be considered for legacy support only.
This page synthesizes distributor pricing, drop-in same-family alternatives, datasheet pinout, and practical design notes not found in the original Altera datasheet.
Drop-in alternatives for EPM5032DI-25 — 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 EPM5032DI-25 (same form factor and footprint) — differing in Package, Device Type, Architecture, Operating Temperature, Process Technology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM5032DC-25
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3.55 / Unit
View Datasheet →EPM5032DC-20
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.05 / Unit
View Datasheet →EPM5032DI-20
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$8.75 / Unit
View Datasheet →EPM5032DC
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$10.4 / Unit
View Datasheet →EPM5016DC-20
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$16.5 / Unit
View Datasheet →EPM5032DI-25 Maximum Ratings & Electrical Characteristics
| Family | MAX 5000 |
| Device Type | UV-erasable Programmable Logic Device (PLD) |
| Architecture | PAL-type, CMOS, AND-OR sum-of-products |
| Macrocells | 32 |
| Product Terms | 320 |
| Dedicated Inputs | 7 |
| Bidirectional I/O Pins | 16 |
| Total Array Inputs | 24 |
| Registered Outputs | 16 |
| Global Clocks | 1 |
| Propagation Delay (tPD) | 25 ns |
| Maximum Clock Frequency (fMAX) | 62.5 MHz |
| Supply Voltage | 5 V |
| Process Technology | CMOS |
| Package | Ceramic DIP, windowed (UV-erasable) |
| Operating Temperature | 0C to +70C (commercial) |
| I/O Standard | TTL-compatible |
| Programmability | UV-erasable, EPROM-based |
| Development Tool | MAX+PLUS II / A+PLUS |
| Lifecycle | Not Recommended for New Designs (NRND) |
EPM5032DI-25 ceramic dip, windowed (uv-erasable) Pin Configuration Guide
Pin configuration for EPM5032DI-25 (ceramic dip, windowed (uv-erasable) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for EPM5032DI-25.
Refer to the datasheet for full pin configuration.
Typical Applications
EPM5032DI-25 is suitable for 6 applications: TTL/CMOS Glue Logic Replacement, Address Decoder and Chip-Select Generator, State Machine Controller, Bus Arbitration Logic, Legacy Industrial Control Logic, Military and Aerospace Avionics (Legacy).
TTL/CMOS Glue Logic Replacement
The EPM5032DI-25 consolidates dozens of 74LS/74F glue-logic gates - decoders, muxes, latches, comparators - into a single 32-macrocell PLD with 320 product terms and 16 bidirectional I/O pins. Its 25 ns propagation delay (62.5 MHz fMAX) is fast enough for address decoding, chip-select generation, and bus-interface logic in legacy 8-bit and 16-bit microprocessor systems where discrete SSI/MSI packages would otherwise consume significant board area. Use it to replace 5-10 discrete 74-series packages while preserving the original circuit topology.
Recommended
Address Decoder and Chip-Select Generator
With 32 macrocells and 24 array inputs, the EPM5032DI-25 can implement complex address-decoding trees for memory-mapped peripherals, dual-port memory arbitration, and chip-select steering across multiple address ranges. The 25 ns tPD through the AND-OR-PIA path keeps the decoded /CS signal within one clock cycle at 25 MHz, while the registered outputs provide glitch-free select generation. This is a classic MAX 5000 application and remains in use in legacy VME, ISA, and proprietary backplane designs.
Recommended
State Machine Controller
The EPM5032DI-25's 16 programmable macrocell flip-flops (configurable as D, T, JK, or SR) and 320 product terms make it well suited to medium-complexity state machines - 8 to 16 states with combinational outputs and inputs - used in serial-protocol controllers, sequencers, and industrial control logic. Each registered output can drive a state-bit while the combinational product-term logic implements the next-state and output decoder. The 62.5 MHz fMAX supports state transitions at sub-microsecond speeds typical of telecommunications and instrumentation timing.
Recommended
Bus Arbitration Logic
Multi-master bus systems (VME, Multibus, proprietary backplanes) require deterministic arbitration logic - request/grant handshakes, priority encoders, and bus-mux control - which maps naturally to the EPM5032DI-25's AND-OR sum-of-products architecture. The 24 array inputs handle multiple bus-request lines and grant outputs, while the 16 registered outputs can hold bus ownership latches. The 25 ns propagation delay matches the arbitration timing budgets of legacy 8/16-bit backplane designs without inserting wait states.
Recommended
Legacy Industrial Control Logic
Industrial control systems deployed in the 1990s - PLCs, motor drives, process-control instrumentation - frequently use the EPM5032DI-25 for custom sequencing, fault-handling, and I/O-conditioning logic. Its 5 V TTL-compatible I/O, ceramic DIP package (suitable for high-temperature and high-vibration environments when socketed), and 32-macrocell capacity handle typical 16-I/O PLC rack modules. The UV-erasable window allows field re-programming during commissioning, while the NRND status means long-term support requires inventory planning or migration to MAX II CPLDs.
Recommended
Military and Aerospace Avionics (Legacy)
The EPM5032DI-25 was widely deployed in 1990s military and aerospace avionics where its ceramic windowed DIP package, CMOS radiation tolerance, and 5 V supply met reliability requirements for flight-control, navigation, and communications subsystems. With 32 macrocells it implements medium-complexity glue logic between MIL-STD-1553 bus controllers, discrete sensor interfaces, and actuator drivers. Long-term support for these systems requires obsolete-component sourcing and lot-trace verification - the part's NRND status as of 2026-09-12 means new designs should migrate to radiation-tolerant FPGAs or modern CPLDs.
Recommended
Recommended Products Summary
Engineering reference data for EPM5032DI-25 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM5032DC-25 | EPM5032DC-20 | EPM5032DI-20 | EPM5032DC | EPM5016DC-20 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | Ceramic DIP (windowed UV) | Plastic DIP (OTP) - same | Plastic DIP (OTP) - same | Ceramic DIP (windowed UV) - same | Plastic DIP (OTP) - same | Plastic DIP (OTP) - same |
| Macrocells | 32 | 32 | 32 | 32 | 32 | 16 (-50%) |
| Product Terms | 320 | 320 | 320 | 320 | 320 | 160 (-50%) |
| I/O Pins | 16 | 16 | 16 | 16 | 16 | 12 (-25%) |
| Programmability | UV-erasable (windowed) | OTP (plastic DIP) | OTP (plastic DIP) | UV-erasable (windowed) | OTP (plastic DIP) | OTP (plastic DIP) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- UV-erasable ceramic windowed package for field re-programmability (vs EPM5032DC-25 (plastic DIP OTP))
- Higher macrocell density than MAX 5000 16-cell predecessors (vs EPM5016DC-20)
- 25 ns speed grade balances cost and performance (vs EPM5032DI-20)
Design Notes
The EPM5032DI-25 is a UV-erasable ceramic DIP and MUST be socketed (not soldered) if you need to re-program it. Soldering directly to the PCB prevents UV erasure through the quartz window and makes field re-programming impossible. Use a machined-pin DIP socket (e.g., 3M Textool or Aries) for development and prototype work; for production volumes, migrate to the OTP plastic-DIP EPM5032DC-25 variant of the same die.
Place the EPM5032DI-25 close to its associated logic to minimize the 25 ns propagation-delay budget being eaten by PCB trace delay. At TTL edge rates (2-3 ns rise time), trace delays of ~15 cm/inch add approximately 1.5 ns/inch; keep all related traces under 6 inches to stay within timing margin. Use a solid ground plane under the device and decoupling capacitors (0.1 uF ceramic + 10 uF tantalum) within 5 mm of VCC pins to suppress switching noise on the 5 V rail.
The EPM5032DI-25 operates from a single 5 V +/- 10% supply. Each output can sink/source 24 mA (TTL compatible), and the device typically draws ICC of approximately 100-200 mA depending on output loading and toggle rate. Add bulk decoupling (47-100 uF) at the board entry point and local 0.1 uF ceramics at every VCC pin. Estimated: at 50% utilization and 20 MHz toggle rate, expect approximately 150 mA ICC - design the 5 V regulator with at least 50% headroom.
Do not design the EPM5032DI-25 into NEW production designs as of 2026-09-12. The part is NRND with limited remaining wafer stock and 8-12 week lead times. For new designs, migrate to the Altera (Intel) MAX II EPM240T100C5N, MAX V EPM5V256A5N, or MAX 10 EPM10CL16U256C8G - these provide JTAG in-system programming, lower power, higher density, and active lifecycle status. The MAX 5000 family uses legacy MAX+PLUS II or A+PLUS development software which is no longer supported by Intel PSG.
Compliance Information
Ceramic DIP package with lead-bearing termination finish; not RoHS compliant. Not applicable for AEC-Q100 automotive qualification. Compliance flags extracted from typical legacy Altera MAX 5000 family documentation - request specific lot CoC from distributor for authoritative status.
