Infineon Technologies CY37128VP160-125AXI

Overview

CY37128VP160-125AXI from Cypress Semiconductor is a 128-macrocell In-System Reprogrammable (ISR™) Complex Programmable Logic Device (CPLD) in the Ultra37000 family, operating at 3.3V with 160-pin TQFP package, 128 I/O pins, 125 MHz maximum frequency (f_MAX), and 10 ns propagation delay (t_PD). It serves as a high-density, pin-stable logic replacement for legacy PAL/GAL devices in board-level glue logic, bus interface control, and state machine implementation.

For engineers reviewing the CY37128VP160-125AXI datasheet, CY37128VP160-125AXI pinout, CY37128VP160-125AXI application, or CY37128VP160-125AXI equivalent, key selection criteria include its JTAG-based ISR capability, programmable bus-hold on all I/Os, flexible product-term allocation (0–16 per macrocell), four synchronous clocks per logic block, and PCI-compliant 3.3V I/O with 5V tolerance.

Technical Context

The CY37128VP160-125AXI implements a modular architecture with two logic blocks, each containing a 72×87 product term array, intelligent product term allocator, and 16 macrocells (mix of I/O and buried). All signals route through a fully global Programmable Interconnect Matrix (PIM) with no route-dependent timing penalties.

Each logic block supports four synchronous clocks (CLK0–CLK3) plus one asynchronous product-term clock (PTCLK), programmable clock polarity, and independent macrocell-level configuration for D/T/latch/register modes with asynchronous set/reset. Bus-hold and slew-rate control are per-I/O configurable.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC95144XL-10TQ144C and ispMACH 4128V-10T144, CY37128VP160-125AXI uniquely combines JTAG-standard ISR, 128 I/Os in a 160-pin TQFP for routing headroom, integrated bus-hold, and formal PCI compliance - making it optimal for upgradeable, noise-sensitive, and standards-certified industrial designs.

Availability

CY37128VP160-125AXI is available at Aetrix Electronics and suitable for PCI add-in card manufacturing, industrial PLC backplane logic, and legacy system emulation requiring stable component supply, long-lifecycle support, and JTAG-field-upgradable functionality.

Supply support for CY37128VP160-125AXI 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-stable, in-system reprogrammable logic for replacing obsolete PAL/GAL devices and implementing board-level control functions with zero timing or pinout impact from design revisions.

FAQ

Is CY37128VP160-125AXI compatible with 5V logic systems?

Yes - all I/O pins are 5V-tolerant when V_CCO = 3.3V, meeting JEDEC 3.3V CMOS output specifications while accepting 5V inputs. This enables direct interfacing with legacy 5V peripherals without level shifters, provided V_CCO remains at 3.3V and input voltage does not exceed 5.5V absolute maximum rating.

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

No - CY37128VP160-125AXI features programmable bus-hold on every I/O pin, which acts as an active weak latch to retain the last driven logic state during high-impedance conditions. This eliminates the need for external pull-up or pull-down resistors, reducing BOM cost and board space.

Can the device be reprogrammed while soldered onto the target PCB?

Yes - the device supports full In-System Reprogrammability (ISR™) via its IEEE 1149.1 JTAG interface (TCK, TMS, TDI, TDO). Reprogramming can be performed in-circuit using standard JTAG programmers or embedded host controllers, with no impact on pinout or timing behavior of existing logic.

What development tools support CY37128VP160-125AXI?

Cypress Warp v6.x and later, along with third-party tools including Mentor Graphics Precision RTL, Synopsys Synplify Pro, and Aldec Active-HDL, fully support the Ultra37000 family. The device uses standard JEDEC JED files for programming and includes native support for VHDL and Verilog synthesis targeting its macrocell-based architecture.