EPM5192AQC-1
EPM5192AQC-1 - 192-Macrocell CMOS OTP PLD | Altera MAX 5000
The Altera EPM5192AQC-1 is a 192-macrocell One-Time Programmable (OTP) Complex Programmable Logic Device (CPLD) from the legacy MAX 5000 family, housed in a 100-pin PQFP (Plastic Quad Flat Pack) package. It features a propagation delay of 40 ns, a maximum clock frequency up to 50 MHz, and operates from a 5 V nominal supply (4.75 V to 5.25 V) across a commercial 0 °C to 70 °C temperature range. The device exposes 64 user I/O lines plus 7 dedicated inputs for a total of 72 inputs and 64 outputs, making it suitable for decoding, interface bridging, and peripheral glue logic.
A CPLD (Complex Programmable Logic Device) is a non-volatile, instant-on programmable logic device that combines multiple PLA-style macrocell blocks on a single die with a central interconnect. Unlike FPGAs, CPLDs typically use EEPROM, EPROM, or antifuse configuration cells, so they boot in microseconds with deterministic timing. MAX 5000 series parts in particular use UV-erasable EPROM (or one-time programmable) cells, placing the family at the low-cost, deterministic-timing end of the programmable logic spectrum and serving as predecessors to the later MAX 7000 and MAX II families.
Key specifications include 192 macrocells, 64 bidirectional I/O pins, 40 ns pin-to-pin propagation delay (tPD), and a 5 V ±5 % supply tolerance. The PQFP-100 footprint provides ample board real estate but accommodates the high pin count required by 64 I/O plus power, ground, JTAG, and dedicated enable pins. The device uses EPROM-based configuration, supporting both UV erasure (windowed packages) and one-time programmable (OTP) variants for production volumes.
The EPM5192AQC-1 uses a classic Altera MAX architecture: sum-of-products logic blocks with a global programmable interconnect, driven by either an internal oscillator or external clock. Each macrocell contains a flip-flop, product-term steering logic, and a programmable output enable, giving designers fine control over registered vs. combinatorial behavior, polarity, and output slew. The 40 ns tPD makes the part appropriate for state machines running up to roughly 25 MHz internally and bus-interface glue running at higher external rates where register-to-register timing dominates.
Typical applications include legacy bus interface glue (ISA, PC/104, VME), address decoding for 8-/16-bit microprocessors, peripheral control and signal conditioning, industrial control boards, and replacement of discrete 74LS/74HC logic clusters. Its instant-on OTP behavior suits production designs where programming cost matters more than field reprogrammability.
Designers should treat the EPM5192AQC-1 as a legacy part: use the Altera MAX+PLUS II toolchain for design entry, simulation, and programming. Provide a clean 5 V rail with bulk and decoupling capacitors, and avoid driving I/O above 5 V without external clamping, as the device uses 5 V-tolerant CMOS I/O rather than modern fail-safe I/O.
This page consolidates verified distributor pricing, parametric data, same-family drop-in alternatives, and design notes not typically surfaced in the original MAX 5000 datasheet, giving procurement engineers and legacy-design maintainers a single reference for the EPM5192AQC-1.
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