Infineon Technologies CY37032VP44-143AXC

Overview

CY37032VP44-143AXC from Cypress Semiconductor is a 3.3V In-System Reprogrammable (ISR™) Complex Programmable Logic Device (CPLD) in the Ultra37000 family, featuring 32 macrocells, 5 dedicated inputs (including 4 clock pins), and 37 user I/Os in a 44-pin TQFP package. It delivers 143 MHz maximum operating frequency (f_MAX) with 8.5 ns propagation delay (t_PD), supporting PCI-compliant 3.3V JEDEC CMOS I/O levels and 5V-tolerant operation. It is used in legacy industrial control logic replacement, FPGA configuration glue logic, and embedded system state-machine acceleration.

For engineers reviewing the CY37032VP44-143AXC datasheet, CY37032VP44-143AXC pinout, CY37032VP44-143AXC application, or CY37032VP44-143AXC equivalent, key selection criteria include its 3.3V supply requirement, JTAG-based ISR capability, programmable bus-hold on all I/Os, product term steering/sharing architecture, and fixed-pinout migration path across Ultra37000 densities.

Technical Context

The CY37032VP44-143AXC implements a modular architecture with one logic block containing a 72×87 product term array, intelligent product term allocator (0–16 terms per macrocell), and 16 macrocells-configured as either I/O or buried types. Its Programmable Interconnect Matrix (PIM) provides 36 global inputs per logic block with no route-dependent timing penalties.

It supports four synchronous clocks (CLK0–CLK3) plus one asynchronous product term clock (PTCLK), all with programmable polarity; all 37 I/Os feature configurable slew rate (fast/slow) and bus-hold enable/disable. The device uses JTAG IEEE 1149.1 for boundary scan and ISR programming at 3.3V.

Key Specifications

Pinout & Package

Package: 44-pin Thin Quad Flat Package (TQFP), 10 mm × 10 mm, 0.8 mm pitch, RoHS-compliant lead-free construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY37032VP44-143AXC, the XC9536XL offers faster timing but sacrifices JTAG standardization and bus-hold; the LC4032ZC saves power and area but cannot interface directly with 5V buses or meet PCI electrical specs-making CY37032VP44-143AXC uniquely suited for mixed-voltage industrial backplane designs requiring field-upgradable logic.

Availability

CY37032VP44-143AXC is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, FPGA configuration management, and embedded safety-critical state-machine acceleration requiring stable component supply and long-term obsolescence mitigation.

Supply support for CY37032VP44-143AXC 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, and mixed-signal solutions for industrial, automotive, and communications markets.

The Ultra37000 CPLD family was designed to deliver high-density, pin-compatible, and timing-predictable logic replacement for legacy PAL/GAL devices-emphasizing in-system reprogrammability, PCI compliance, and seamless migration across density tiers.

FAQ

Is CY37032VP44-143AXC compatible with 5V logic interfaces?

Yes, all I/O pins are 5V-tolerant when V_CCO = 3.3 V, allowing direct connection to 5V buses without level shifters. Input thresholds meet 3.3V JEDEC CMOS standards (V_IH ≥ 2.0 V, V_IL ≤ 0.8 V), and outputs drive to 3.3V levels while surviving 5.5V transient overvoltage. This enables safe interfacing with legacy 5V peripherals in mixed-voltage systems.

What programming tools support CY37032VP44-143AXC ISR functionality?

Cypress Warp v5.0+ and third-party tools including Lattice ispLEVER Classic (with Cypress plugin) and older versions of Altera MAX+PLUS II support JTAG-based programming. The device requires IEEE 1149.1-compliant programmers such as the Cypress MiniProg3 or Xilinx Platform Cable USB. No proprietary hardware is needed-standard JTAG adapters suffice for both programming and boundary scan testing.

Does CY37032VP44-143AXC support hot-socketing or live insertion?

No-hot-socketing is not supported. The device requires proper power sequencing: V_CC and V_CCO must be stable before applying signals to any I/O or JTAG pins. Applying inputs before power stabilization may cause latch-up or excessive current draw. Board-level protection (e.g., series resistors, RC filters) is recommended for systems requiring field-replaceable modules.

Can the product term clock (PTCLK) be used simultaneously with global clocks CLK0–CLK3?

Yes-PTCLK operates independently and asynchronously from the four synchronous clocks. Each macrocell selects its clock source individually: PTCLK can drive some registers while CLK0–CLK3 drive others within the same logic block. The product term clock equation is synthesized from the local 72×87 array, enabling event-driven latching (e.g., data capture on bus handshake assertion) alongside periodic operations.