EP1810JC-45 - Classic EPLD, 48 Macrocells, 45ns, UV PLCC | Altera
MPN: EP1810JC-45 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $32.75 | $327.50 |
| 100 | $27.2 | $2,720.00 |
| 500 | $23.4 | $11,700.00 |
| 1,000 | $21.1 | $21,100.00 |
Drop-in alternatives for EP1810JC-45 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EP1810JC-35
β Drop-Inβ In Stock
$5.48 / Unit
View Datasheet βEP1810JC-25
β Drop-Inβ In Stock
$6.8 / Unit
View Datasheet βEP1810GI-45
β Drop-Inβ In Stock
$56.4 / Unit
View Datasheet βEP1810GM883B
β Drop-Inβ In Stock
$125.4 / Unit
View Datasheet βEP1810GC-35AB
β Drop-Inβ In Stock
$9.95 / Unit
View Datasheet βEP1810GC-35
β Drop-Inβ In Stock
$177.12 / Unit
View Datasheet βEP1810JC-45 Maximum Ratings & Electrical Characteristics
| Product Type | Classic EPLD (Erasable Programmable Logic Device) |
| Family | EP1810 (Classic EPLD Family) |
| Macrocells | 48 |
| Equivalent Gates | 2100 gates |
| Dedicated Inputs | 12 |
| I/O Pins | 48 |
| Total User I/O | 60 |
| Propagation Delay (tpd) | 45 ns |
| Maximum Clock Frequency | 33.3 MHz |
| Technology | CMOS, UV-erasable |
| Maximum Supply Voltage | 5.25 V |
| Package | PLCC-68 (QCCJ, J-Lead, windowed ceramic) |
| Pin Count | 68 |
| Package Code | QCCJ |
| Temperature Grade | Commercial |
| Mounting Type | Surface Mount |
EP1810JC-45 Pin Configuration
| Pin 1 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 2 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 3 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 4 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 5 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 6 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 7 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 8 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 9 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 10 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 11 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 12 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 13 | GND β Ground |
| Pin 14 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 15 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 16 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 17 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 18 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 19 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 20 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 21 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 22 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 23 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 24 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 25 | GND β Ground |
| Pin 26 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 27 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 28 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 29 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 30 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 31 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 32 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 33 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 34 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 35 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 36 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 37 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 38 | GND β Ground |
| Pin 39 | IN β Dedicated input pin |
| Pin 40 | IN β Dedicated input pin |
| Pin 41 | IN β Dedicated input pin |
| Pin 42 | IN β Dedicated input pin |
| Pin 43 | IN β Dedicated input pin |
| Pin 44 | IN β Dedicated input pin |
| Pin 45 | IN β Dedicated input pin |
| Pin 46 | IN β Dedicated input pin |
| Pin 47 | IN β Dedicated input pin |
| Pin 48 | IN β Dedicated input pin |
| Pin 49 | IN β Dedicated input pin |
| Pin 50 | GND β Ground |
| Pin 51 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 52 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 53 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 54 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 55 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 56 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 57 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 58 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 59 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 60 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 61 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 62 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 63 | GND β Ground |
| Pin 64 | VCC β Power supply (5 V typical) |
| Pin 65 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 66 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 67 | I/O β Bidirectional I/O pin (macrocell I/O) |
| Pin 68 | I/O β Bidirectional I/O pin (macrocell I/O) |
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
EP1810JC-45 is suitable for 6 applications: Microprocessor Address Decoding, Bus Arbitration and DMA Control Logic, Peripheral Chip Glue Logic Replacement, Industrial Control State Machines, Legacy Test and Measurement Equipment, Telecommunications Interface Adapters.
Microprocessor Address Decoding
The EP1810JC-45's 48 macrocells and 12 dedicated fast inputs make it well-suited for microprocessor address decoding in 8-bit and 16-bit systems. With 2100 equivalent gates of capacity, the device can implement full 16-bit or 24-bit address decoders with chip-select outputs for ROM, RAM, and peripheral memory maps. The 45 ns tpd is fast enough for decode insertion in systems with clock frequencies up to ~15 MHz (with derating), and the UV-erasable ceramic package allows prototype iteration when refining memory maps during development.
Recommended
Bus Arbitration and DMA Control Logic
Bus arbitration and DMA control logic benefit from the EP1810JC-45's 48 bidirectional I/O pins and dedicated flip-flops in each macrocell. The device can implement multi-master bus arbiters, HOLD/HLTA sequences, and DMA controller state machines that replace 4-6 discrete 74LS/ALS TTL packages per function. The 5 V CMOS technology matches TTL logic levels directly, eliminating level translators. The windowed ceramic package supports prototype iteration of arbitration algorithms before committing to a non-windowed production part.
Recommended
Peripheral Chip Glue Logic Replacement
The EP1810JC-45 can replace entire boards of 74LS/74ALS glue logic in peripheral and interface cards. A single EP1810 implements 4-8 standard MSI functions (decoders, multiplexers, latches, parity generators) in one package, reducing board area by 60-70% and improving noise margins through lower aggregate switching current. The 33.3 MHz maximum clock frequency supports ISA bus and similar peripheral bus timings. Designers migrating legacy 74-series logic to a single EPLD gain PCB simplification and improved reliability.
Recommended
Industrial Control State Machines
Industrial controllers and machine automation systems use the EP1810JC-45 for state-machine control of conveyor sequencers, packaging machinery, and process controllers. Each macrocell provides a dedicated flip-flop with clear/preset control, ideal for Mealy and Moore state machines. The 2100-gate capacity supports 16-32 state FSMs with 4-8 output actions. The 5 V supply and CMOS technology provide good noise immunity for factory-floor environments, though industrial-grade EP1810GI-45 is preferred for -40C to +85C operation.
Recommended
Legacy Test and Measurement Equipment
Test and measurement instruments with EP1810JC-45 logic include timing generators, frequency counters, and protocol analyzers built in the 1990s. The device's deterministic 45 ns tpd makes it useful for precise timing circuits where CPLD/FPGA jitter would be unacceptable. Maintenance and repair of legacy T&M equipment is the primary current use case - the UV-erasable windowed ceramic package supports in-house reprogramming when logic updates are needed during service.
Recommended
Telecommunications Interface Adapters
The EP1810JC-45 was widely used in telecommunications equipment for serial-interface adapters, T1/E1 framer glue logic, and X.25 protocol controllers. The 5 V CMOS technology directly interfaces with TTL-level telecom bus standards, and the 48 I/Os handle multiple serial channels plus control/status signaling. For legacy telecom systems still in service, the EP1810JC-45 provides proven reliability and field-validated operation, though new designs should migrate to modern MAX V or Lattice ispMACH CPLDs.
Recommended
Recommended Products Summary
Engineering reference data for EP1810JC-45 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1810JC-35 | EP1810JC-25 | EP1810GI-45 | EP1810GM883B | EP1810GC-35AB | EP1810GC-35 |
|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | PLCC-68 (QCCJ) | PLCC-68 (QCCJ) - same | PLCC-68 (QCCJ) - same | PLCC-68 (QCCJ) - same | PLCC-68 (QCCJ) - same | PLCC-68 (QCCJ) - same | PLCC-68 (QCCJ) - same |
| Propagation Delay (tpd) | 45 ns | 35 ns (-22%) | 25 ns (-44%) | 45 ns (same) | 45 ns (same) | 35 ns (-22%) | 35 ns (-22%) |
| Macrocells | 48 | 48 (same) | 48 (same) | 48 (same) | 48 (same) | 48 (same) | 48 (same) |
| Max Clock Frequency | 33.3 MHz | 33.3 MHz | 33.3 MHz | 33.3 MHz | 33.3 MHz | 33.3 MHz | 33.3 MHz |
| Temperature Grade | Commercial | Commercial | Commercial | Industrial (-40C to +85C) | Military (MIL-STD-883B) | Commercial | Commercial |
| Package Type | Windowed ceramic (UV-erasable) | Windowed ceramic (UV-erasable) | Windowed ceramic (UV-erasable) | Windowed ceramic (UV-erasable) | Windowed ceramic (UV-erasable) | Plastic non-windowed (one-time-programmable) | Plastic non-windowed (one-time-programmable) |
| Supply Voltage Max | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V |
Key Differentiators
- Speed grade position in EP1810 family (vs EP1810JC-35)
- Windowed ceramic vs plastic package (vs EP1810GC-35)
- Commercial vs industrial temperature grade (vs EP1810GI-45)
Design Notes
The EP1810JC-45 operates from a single 5 V supply (4.5 V to 5.25 V range) with CMOS technology. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the VCC pin, plus a 10 uF tantalum bulk capacitor at the board power-entry point. Estimated: at 33.3 MHz with all 48 I/Os switching, dynamic current is approximately 30-50 mA. The four GND pins (13, 25, 38, 50) must all be connected for proper operation.
Do not confuse EP1810JC-45 (ceramic windowed, UV-erasable, prototyping) with EP1810GC-45 (plastic, one-time-programmable, production). Both share the PLCC-68 footprint but only the JC variant supports UV erasure for logic iteration. Also note: Classic EPLDs require a specific programming algorithm via dedicated programming pins - they cannot be programmed in-circuit like modern flash CPLDs.
The windowed ceramic QCCJ package has limited thermal dissipation - at 33.3 MHz with full I/O switching, the device dissipates approximately 250-400 mW. Commercial temperature grade (0C to 70C) is standard. For higher temperature or vibration environments, consider the EP1810GI-45 (industrial, -40C to +85C) or EP1810GM883B (MIL-STD-883 screened).
Place the EP1810JC-45 with pin 1 orientation matching the PLCC-68 socket orientation. Use a machined-pin PLCC socket (not the cheaper stamped sockets) for reliable prototyping cycles - the J-lead ceramic package contacts wear with repeated insertion. For UV erasure, ensure at least 25 mm of clearance above the quartz window for the UV eraser lamp.
Compliance Information
EP1810 family datasheet (1989) predates RoHS compliance documentation. RoHS/REACH status not stated in verified data - assume non-compliant for the original ceramic JC variant. The plastic GC variants may have later RoHS-compliant revisions; verify with the actual manufacturer before use in RoHS-required designs. AEC-Q100 not applicable - this is a commercial/industrial/military logic device.
