Infineon Technologies CY37192P160-125AXC

Overview

CY37192P160-125AXC from Cypress Semiconductor is a 192-macrocell In-System Reprogrammable (ISR™) Complex Programmable Logic Device (CPLD) in a 160-pin TQFP package, operating at 5V with 125 ns maximum propagation delay (tPD) and 154 MHz maximum frequency (fMAX). It features four synchronous clocks, programmable bus-hold on all I/Os, and JTAG-compliant ISR for field reconfiguration without pinout or timing changes. It is used in PCI-compliant interface logic, legacy system glue logic, and industrial control state machines.

For engineers reviewing the CY37192P160-125AXC datasheet, CY37192P160-125AXC pinout, CY37192P160-125AXC application, or CY37192P160-125AXC equivalent, key selection criteria include macrocell count, I/O pin count (120), tPD/fMAX speed bin, VCCO voltage flexibility (5V/3.3V I/O support), and JTAG-based ISR capability for post-deployment logic updates.

Technical Context

The CY37192P160-125AXC implements the Ultra37000 architecture with a Programmable Interconnect Matrix (PIM) delivering fixed, route-independent timing-no fanout, expander, or PIM-path delays affect tPD. Each of its logic blocks contains a 72×87 product term array, intelligent allocator supporting 0–16 product terms per macrocell, and dedicated asynchronous set/reset/product term clock/OE terms.

It supports flexible clocking: four global synchronous clocks (CLK0–CLK3) with polarity control, plus a product term clock (PTCLK); all I/Os feature programmable slew rate (fast/slow) and bus-hold latching. The device uses 5V VCC with VCCO-configurable I/O levels (5V TTL or 3.3V JEDEC CMOS, 5V-tolerant).

Key Specifications

Pinout & Package

Package: 160-pin Thin Quad Flat Package (TQFP), 24 × 24 mm body, 0.5 mm pitch, RoHS-compliant lead-free option available (AXC suffix).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CPLD-based interface logic applications.

Compared with CY37192P160-125AXC, XC95192 offers higher speed but sacrifices I/O count, voltage flexibility, and standardized JTAG; ATF1508AS provides modern JTAG but lacks 5V operation and bus-hold-critical for industrial retrofit applications.

Availability

CY37192P160-125AXC is available at Aetrix Electronics and suitable for PCI interface design, industrial PLC expansion, legacy bus arbitration, and automotive diagnostic gateway development requiring stable component supply and long-term manufacturability.

Supply support for CY37192P160-125AXC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) is a U.S.-based semiconductor company specializing in programmable logic, memory, USB, and analog solutions for industrial, automotive, and communications markets.

The Ultra37000 CPLD family was designed to deliver high-density, pin-compatible, ISR-capable logic for system-level glue functions-targeting PCI, ISA, and custom bus interface applications where field-upgradable logic and timing predictability are critical.

FAQ

What voltage levels does CY37192P160-125AXC support on its I/O pins?

CY37192P160-125AXC supports both 5V TTL and 3.3V JEDEC CMOS I/O levels. Its VCCO pins must be tied to either 5V or 3.3V to configure output drive strength and voltage thresholds. All I/Os are 5V-tolerant regardless of VCCO setting, enabling safe interfacing with 5V buses even when operating at 3.3V I/O levels.

Can CY37192P160-125AXC be reprogrammed while soldered on a PCB?

Yes-CY37192P160-125AXC supports full In-System Reprogrammability (ISR™) via its IEEE 1149.1 JTAG interface. Reprogramming requires only TCK, TMS, TDI, TDO, and TRESET signals routed to a debug header or programming fixture; no device removal or socket is needed, and existing pin assignments remain unchanged.

Does this device require external pull-up resistors on unused I/O pins?

No-CY37192P160-125AXC includes programmable bus-hold circuitry on every I/O pin. When enabled, bus-hold latches the last driven logic state during high-impedance conditions, eliminating the need for external pull-ups and reducing board space and BOM cost in bus-interface and prototyping applications.

How many clock domains can be implemented simultaneously in this CPLD?

CY37192P160-125AXC supports up to five independent clock domains: four global synchronous clocks (CLK0–CLK3) plus one asynchronous product term clock (PTCLK). Each logic block can assign any of these clocks to its macrocells, and clock polarity is programmable per logic block-enabling mixed-edge and multi-frequency timing architectures.