Infineon Technologies CY37032VP44-100AXI

Overview

CY37032VP44-100AXI 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 user I/Os in a 44-pin 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) for synchronous logic control in embedded interface glue logic.

For engineers reviewing the CY37032VP44-100AXI datasheet, CY37032VP44-100AXI pinout, CY37032VP44-100AXI application, or CY37032VP44-100AXI equivalent, key selection criteria include its 3.3V operation with 5V-tolerant I/Os, programmable bus-hold on all I/Os, product-term-steerable macrocell architecture, and PCI Local Bus electrical compliance.

Technical Context

The CY37032VP44-100AXI implements a single logic block with a 72 × 87 product term array, delivering up to 80 general-purpose product terms distributed across 16 macrocells via intelligent allocation. It supports four global synchronous clocks (CLK0–CLK3) plus one asynchronous product-term clock (PTCLK), all with programmable polarity.

All 37 I/Os are 5V-tolerant and feature individually configurable bus-hold latches and slew-rate control (fast/slow). The device uses a Programmable Interconnect Matrix (PIM) with fixed, route-independent timing-no fanout, expander, or PIM-delay penalties-and incorporates worst-case delays directly into tPD = 10 ns and fMAX = 100 MHz specifications.

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 interface logic applications.

Compared with CY37032VP44-100AXI, the XC9536XL offers marginally higher macrocell count but sacrifices 5V-tolerance and integrated bus-hold-increasing BOM count and layout complexity-while the ispMACH 4032V provides comparable density and speed but lacks documented PCI compliance and robust I/O protection features.

Availability

CY37032VP44-100AXI is available at Aetrix Electronics and suitable for PCI add-in card development, industrial I/O expansion modules, and embedded system power sequencing requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for CY37032VP44-100AXI 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 programmable logic for system-level glue logic replacement-targeting applications where reprogrammability, I/O flexibility, and PCI interoperability are essential.

FAQ

Is CY37032VP44-100AXI compatible with 5V logic systems?

Yes-its I/Os are fully 5V-tolerant when VCCO is set to 3.3V, allowing direct connection to 5V buses without level shifters. This is explicitly verified in the datasheet's "Ultra37000V 3.3V Devices" section and confirmed by JEDEC-compliant output voltage specs under 5V input conditions.

Does this device support in-system programming without removing it from the board?

Yes-CY37032VP44-100AXI implements Cypress's ISR™ technology via IEEE 1149.1 JTAG interface (TCK/TMS/TDI/TDO pins), enabling full reconfiguration in-system. The datasheet confirms that design changes do not alter pinout or timing behavior, making it ideal for field-upgradable logic.

What is the function of the dedicated input pins beyond clocking?

Five dedicated inputs include four clock pins (CLK0–CLK3) and one global reset pin. All five support combinatorial, registered, double-registered, or latched configurations. The reset pin feeds asynchronous set/reset product terms used across the entire logic block-enabling synchronized initialization of all 32 macrocells.

Can bus-hold be disabled per pin, or is it global?

Bus-hold is programmable per I/O pin via configuration bit settings in the device's fuse map. The datasheet states "user programmable bus-hold capabilities on all I/Os," and Cypress application note AN2012 confirms individual enable/disable control through the Warp® design software-no global override is required.