EPM5128JI-2 - 128-Macrocell UV PLD, 45ns, MAX 5000 | Altera
MPN: EPM5128JI-2 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.2 | $252.00 |
| 100 | $21.8 | $2,180.00 |
| 500 | $18.95 | $9,475.00 |
| 1,000 | $16.4 | $16,400.00 |
Drop-in alternatives for EPM5128JI-2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPM5128JI
✅ Drop-In✓ In Stock
$23.95 / Unit
View Datasheet →EPM5128JI-2 Maximum Ratings & Electrical Characteristics
| Device Type | UV-Erasable Programmable Logic Device (PLD) |
| Series | MAX 5000 |
| Macrocells | 128 |
| Dedicated Inputs | 7 |
| User I/O Pins | 52 |
| Propagation Delay (tPD) | 45 ns |
| Maximum Clock Frequency | 50 MHz |
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (industrial) |
| Package Type | Ceramic J-Lead (JI) with UV window |
| Process Technology | CMOS EPROM |
| Programmability | UV-erase, parallel programmer |
| Architecture | LAB-based macrocell, segmented interconnect |
| Speed Grade | -2 (industrial-speed) |
| RoHS Status | unknown |
| Lead-Free | unknown |
EPM5128JI-2 ceramic j-lead (ji) with uv window Pin Configuration Guide
Complete pinout information for EPM5128JI-2 (ceramic j-lead (ji) with uv window package) with 52 pins. 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 EPM5128JI-2.
Refer to the datasheet for full pin configuration.
Estimated pin count: 52 pins (digital package)
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
EPM5128JI-2 is suitable for 6 applications: Legacy Industrial Glue Logic, Telecom Interface and Bus Adapter, Aerospace/Defense Sustainment Programs, Prototype Development and Breadboard Designs, State Machine and Address Decoder Consolidation, Long-Term Field-Reprogrammable Controllers.
Legacy Industrial Glue Logic
The EPM5128JI-2's 128 macrocells and 52 user I/O pins are well-suited for consolidating discrete TTL/CMOS glue logic in legacy industrial controllers. With 45 ns propagation delay and 50 MHz max clock, it reliably replaces dozens of 74-series decoder, latch, and multiplexer packages on a 5 V backplane. The 4.5 V to 5.5 V supply matches legacy 5 V industrial rails directly without level shifting. UV erasability enables field re-programming during commissioning or upgrades, and the JI ceramic package withstands industrial temperature (-40 C to +85 C) and vibration. The 7 dedicated inputs simplify clock, clear, and OE routing in state-machine-heavy control designs.
Recommended
Telecom Interface and Bus Adapter
The EPM5128JI-2 fits telecom interface adapters where 52 bidirectional I/O pins handle bus multiplexing, address decoding, and protocol conversion between legacy backplanes and modern processors. The 45 ns tPD accommodates 10 MHz telecom buses (E1/T1 framing, HDLC controllers) without timing violation. The 128 macrocells comfortably absorb address-decode trees plus state-machine control for line-interface cards. Industrial temperature rating and the ceramic JI package suit central-office environments. The single 5 V supply aligns with classic telecom hardware rails, and the 50 MHz clock headroom supports serial-control-plane state machines at typical telecom clock rates.
Recommended
Aerospace/Defense Sustainment Programs
The EPM5128JI-2 remains on qualified parts lists (QPLs) for aerospace and defense sustainment programs where the original MAX 5000 design cannot be redesigned without re-certification. Its UV-erasable ceramic JI package supports field reprogramming for obsolescence-management updates, while the -40 C to +85 C industrial temperature range meets most ground and shipboard applications. For programs requiring MIL-STD-883 screening, the EPM5128GM883B variant provides the same logic in a screened ceramic PGA package. Sustaining legacy flight systems often hinges on keeping MAX 5000 inventory alive via independent distributors, and the part's mature CMOS EPROM process ensures long-term data retention.
Recommended
Prototype Development and Breadboard Designs
The EPM5128JI-2 with its ceramic JI package and UV erasure window is purpose-built for prototype iteration cycles where designs must be reprogrammed many times. Engineers developing new logic architectures can erase and reprogram the same physical device dozens of times via standard UV erasers, supporting rapid design-of-experiments workflows. The 45 ns tPD provides realistic timing margins that translate well to production plastic JC variants. For university labs and engineering training, the JI package offers a tangible UV-erase demonstration that newer ISP-only CPLDs cannot replicate, making it valuable for teaching programmable-logic fundamentals.
Recommended
State Machine and Address Decoder Consolidation
The EPM5128JI-2's macrocell architecture excels at replacing multiple 74LS/74HC PAL/GAL devices with a single integrated state machine plus address-decoder tree. Each macrocell's flip-flop and product-term allocation supports wide Moore/Mealy state machines, while the 52 I/O pins handle up to 52-bit address or data paths without external muxes. The 45 ns propagation delay is well within the timing budget of legacy microprocessor buses (8086, 68000, VME). Industrial temperature operation suits factory-floor equipment. Combined with 7 dedicated inputs for clock, reset, and bus-request signals, this is a drop-in modern consolidation solution for 1980s/1990s designs.
Recommended
Long-Term Field-Reprogrammable Controllers
The EPM5128JI-2 suits long-term field-reprogrammable controllers where remote UV erasure followed by physical re-programming via a portable programmer is acceptable. Industrial machine builders ship systems with the ceramic JI package to allow service technicians to update control logic over the equipment lifetime without redesigning the PCB. The 128-macrocell capacity accommodates medium-complexity control algorithms, and the 5 V supply matches typical industrial PSU rails. Although modern designs prefer JTAG-based ISP (MAX II/MAX V), the JI ceramic remains the only option when UV-reprogrammability is mandated by end-customer qualification requirements.
Recommended
Recommended Products Summary
Engineering reference data for EPM5128JI-2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM5128JI | EPM5128JC-2 | EPM5128JC-1 | EPM5128GM883B | EPM5128GI |
|---|---|---|---|---|---|---|
| Package | Ceramic J-Lead (JI) | Ceramic J-Lead (JI) - same | Plastic J-Lead (JC) - different footprint | Plastic J-Lead (JC) - different footprint | Ceramic PGA (GM) - different pinout | Ceramic PGA (GI) - different pinout |
| Brand | Altera | Altera - same | Altera - same | Altera - same | Altera - same | Altera - same |
| Macrocells | 128 | 128 | 128 | 128 | 128 | 128 |
| Propagation Delay (tPD) | 45 ns | ~30 ns (faster) | 45 ns | ~35 ns | 45 ns | ~30 ns |
| UV Erasure Window | Yes (ceramic JI) | Yes (ceramic JI) | No (plastic JC, OTP) | No (plastic JC, OTP) | Yes (ceramic PGA) | Yes (ceramic PGA) |
| Temperature Grade | Industrial -40 to +85 C | Industrial -40 to +85 C | Commercial 0 to +70 C | Commercial 0 to +70 C | Military -55 to +125 C | Industrial -40 to +85 C |
| User I/O Pins | 52 | 52 | 52 | 52 | 52 | 52 |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Max Clock Frequency | 50 MHz | ~67 MHz | 50 MHz | ~60 MHz | 50 MHz | ~67 MHz |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active (military) | NRND |
Key Differentiators
- Only MAX 5000 variant with both ceramic JI package AND -2 (slower) speed grade (vs EPM5128JC-2)
- Lower-cost than military-screened 883B variant (vs EPM5128GM883B)
- Faster speed grade option available in same package (vs EPM5128JI)
Design Notes
The EPM5128JI-2 is NRND and the MAX+PLUS II toolchain is end-of-life. Estimated: for any new design in 2026, default to MAX II (EPM240) or MAX V CPLDs with JTAG ISP. Use EPM5128JI-2 only for sustaining existing designs where re-qualification cost exceeds redesign cost. Programming requires legacy parallel-port hardware (PL-ASAP, BP-1200); USB-based modern programmers do not support MAX 5000 devices.
The ceramic JI package through-hole footprint is NOT compatible with the plastic JC J-lead footprint - the lead pitch and body dimensions differ. Estimated: when migrating from JI prototype to JC production, verify the PCB land pattern against the JC mechanical drawing before committing to layout. PGA variants (GM/GI) use entirely different pin assignments and require a new PCB. Allow at least 4 weeks of layout/fab time for a JI-to-JC board respin.
The ceramic JI package provides excellent thermal performance and is rated for -40 C to +85 C industrial operation. No external heatsink is required because CMOS EPROM logic dissipates only microwatts per macrocell at 50 MHz. However, the UV erasure window makes the part sensitive to ambient fluorescent lighting and direct sunlight - prolonged exposure can erase the configuration. Store erased/unprogrammed parts in opaque ESD bags with desiccant.
At 45 ns tPD the EPM5128JI-2 is not suitable for high-speed synchronous logic above ~50 MHz registered clock. Outputs drive TTL-level loads directly with adequate fan-out (typically 8 LSTTL loads per pin). Place 0.1 uF decoupling capacitors within 5 mm of each VCC/GND pair; one bulk 10 uF tantalum per package is sufficient. The 7 dedicated inputs are internally de-glitched - apply them to clock, clear, and OE signals that must be globally routed.
Compliance Information
Compliance status not stated in verified web data. Ceramic JI through-hole packages from the MAX 5000 era (pre-2000) typically use SnPb lead finishes and are not RoHS-compliant by default; verify with distributor documentation. AEC-Q100 is not applicable for legacy PLDs of this era.
