Altera

EP1810JC-45 - Classic EPLD, 48 Macrocells, 45ns, UV PLCC | Altera

MPN: EP1810JC-45 ✗ Akhir Hidup

5.25 V Vdss PLCC-68 (QCCJ, J-Lead, windowed ceramic) Package 33.3 MHz Speed

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EP1810JC-45 Ringkasan

The Intel / Altera EP1810JC-45 is a 48-macrocell Classic EPLD from Altera's EP1810 family, packaged in a 68-lead ceramic J-lead chip carrier (QCCJ / PLCC-68) and specified with a 45 ns maximum propagation delay. It is a UV-erasable, user-configurable LSI circuit capable of implementing approximately 2100 equivalent gates of conventional or custom logic, organized around a Programmable Logic Array with global and local interconnect buses. The '-45' speed suffix denotes a 45 ns tpd at commercial temperature grade, while the 'JC' suffix denotes the windowed ceramic J-lead chip-carrier package intended for prototyping and UV-erase cycles.

A Classic EPLD (Erasable Programmable Logic Device) is a one-time- or UV-erasable non-volatile logic device that predates modern SRAM-based FPGAs and flash-based CPLDs. In the system hierarchy it sits between discrete 74-series glue logic and modern FPGA/CPLD architectures: each macrocell contains a programmable AND/OR array plus a flip-flop, and the global/local buses fan logic between the AND array and the macrocell register bank. Because the device is non-volatile and instantly reconfigurable without external boot memory, Classic EPLDs were widely used for address decoding, bus arbitration, state-machine control, and glue logic in 1980s and 1990s designs.

Key features of the EP1810JC-45 include 48 macrocells, 12 dedicated inputs plus 48 bidirectional I/O lines for 60 total usable I/Os, a 33.3 MHz maximum clock frequency, and a 5.25 V maximum supply voltage with CMOS technology. The part is offered in a commercial temperature grade (typically 0C to 70C) and supports both synchronous and asynchronous logic designs via per-macrocell flip-flops with individual clear, preset, and output-enable control. Programming is performed via a standard Altera programming algorithm through the dedicated programming pins.

Typical applications for the EP1810JC-45 include microprocessor address decoding, DMA control logic, peripheral-chip glue logic in 8-bit and 16-bit systems, bus-interface adapters, and replacement of multiple 74LS/74ALS TTL packages. The 2100-gate capacity also makes it usable for small state machines, interrupt controllers, and timing/sequencer functions in legacy industrial controllers and test equipment.

When designing with this device, ensure that the supply voltage does not exceed 5.25 V and that high-speed signals use the dedicated fast-input pins rather than I/O pins. The windowed ceramic package allows repeated UV erasure, which is essential for prototype iteration - plan for a 30-60 minute UV erase cycle when iterating logic designs. The part is now in NRND/last-time-buy status at Altera/Intel, so long-term designs should consider modern MAX series replacements.

This page synthesizes distributor pricing, package-level compatibility notes, and drop-in alternatives that are not consolidated in any single manufacturer document.

Alternatif penggantian untuk EP1810JC-45 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.

Variasi di dalam seri ini

Model-series yang sama yang kompatibel dengan penggantian EP1810JC-45 (sama faktor bentuk dan footprint) — berbeda di dalam Mounting Type, Operating Temperature, Technology, Package, Package Type.

EP1810GC-35

Altera

Mounting Type: Through Hole

Technology: CMOS, UV-erasable EPROM cells

Package: CPGA-68 (Ceramic Pin Grid Array, 68-pin)