Infineon Technologies CY37032VP44-100AXC

Overview

CY37032VP44-100AXC 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), 37 I/O pins in a 44-lead TQFP package, and 10 ns propagation delay (tPD). It supports JTAG-based reconfiguration without pinout or timing changes and delivers 100 MHz maximum operating frequency (fMAX). It is used in PCI-compliant interface logic, legacy bus bridging, and FPGA configuration glue logic.

For engineers reviewing the CY37032VP44-100AXC datasheet, CY37032VP44-100AXC pinout, CY37032VP44-100AXC application, or CY37032VP44-100AXC equivalent, key selection criteria include its 3.3V operation with 5V-tolerant I/Os, programmable slew rate control, bus-hold capability on all I/Os, and support for product-term clocking and flexible logic block-level clock polarity.

Technical Context

The CY37032VP44-100AXC implements a single logic block architecture with a 72 × 87 product term array delivering up to 80 general-purpose product terms, four output-enable (OE) product terms, two asynchronous set/reset product terms, and one product-term clock. All 32 macrocells are configurable as I/O or buried, with individual product-term steering (0–16 per macrocell) and sharing across groups of four.

Its Programmable Interconnect Matrix (PIM) provides 36 global inputs per logic block (plus complements), routing all I/O and feedback signals with fixed, route-independent timing-no fanout, expander, or PIM-path delays affect tPD. Clocking includes four synchronous clocks (CLK0–CLK3) plus an asynchronous product-term clock (PTCLK), each with programmable polarity.

Key Specifications

Pinout & Package

Package: 44-lead 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 interface logic applications.

Compared with XC9536XL-10VQ44I and ATF1502AS-10AU44, the CY37032VP44-100AXC uniquely combines product-term clocking, per-pin bus-hold, and consistent 37-I/O count in 44-TQFP-enabling tighter timing control and reduced external components in mixed-voltage industrial interfaces.

Availability

CY37032VP44-100AXC is available at Aetrix Electronics and suitable for PCI interface glue logic, FPGA configuration management, and industrial I/O expansion requiring stable component supply across long-lifecycle embedded programs.

Supply support for CY37032VP44-100AXC 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 systems.

The Ultra37000 CPLD family was designed to deliver high-density, pin-compatible, and timing-predictable logic replacement for legacy PAL/GAL devices-targeting applications where rapid design iteration and in-field reconfiguration are critical.

FAQ

Is CY37032VP44-100AXC compatible with 5V I/O buses?

Yes. Although it operates at 3.3V core and I/O supply (VCCO = 3.3V), all I/O pins are 5V-tolerant per JEDEC standards. This allows direct connection to 5V buses without level shifters, provided VCCO remains at 3.3V and no current is sourced into the pins beyond ±25 mA absolute maximum ratings.

Does this device require external configuration memory?

No. The CY37032VP44-100AXC contains on-chip nonvolatile configuration memory and is configured automatically on power-up. Its In-System Reprogrammable (ISR™) architecture allows full reconfiguration via JTAG without external PROM or flash memory.

Can bus-hold be disabled per pin?

Yes. Bus-hold is user-programmable per I/O pin using Cypress' development tools (e.g., Warp v9.5 or later). Disabling bus-hold reduces leakage current and is recommended for pins driven by strong external sources or used in high-speed differential signaling paths.

What clock sources can drive the PTCLK input?

The PTCLK input accepts any logic-level signal generated within the device-typically derived from a product term equation (e.g., decoded interrupt or status flag). It is asynchronous and independent of CLK0–CLK3, enabling edge-triggered actions without consuming global clock resources.