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Home > Products > Integrated Circuits (ICs) > Embedded > CPLDs (Complex Programmable Logic Devices)

Infineon Technologies CY37128P160-125AXIT

Name: CY37128P160-125AXIT
Brand: Infineon Technologies
SKU: CY37128P160-125AXIT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY37128P160-125AXIT

Manufacturer:: Infineon Technologies

Category:: CPLDs (Complex Programmable Logic Devices)

Package:: 160-LQFP

Datasheet:: CY37128P160-125AXIT.pdf

Description:: IC CPLD 128MC 10NS 160TQFP

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Product details

Overview

CY37128P160-125AXIT from Cypress Semiconductor is a 128-macrocell In-System Reprogrammable (ISR™) Complex Programmable Logic Device (CPLD) in the Ultra37000 family, operating at 5V with 160-pin TQFP packaging. It delivers 125 MHz maximum frequency (f_MAX), 6.5 ns propagation delay (t_PD), and supports 128 I/O pins with programmable bus-hold, slew rate control, and four synchronous clocks per logic block - deployed in PCI-compliant interface logic, FPGA configuration glue, and legacy bus bridging.

For engineers reviewing the CY37128P160-125AXIT datasheet, CY37128P160-125AXIT pinout, CY37128P160-125AXIT application, or CY37128P160-125AXIT equivalent, key selection considerations include its fixed-pinout migration path across Ultra37000 densities, JTAG-based ISR reprogramming without timing/pinout impact, 5V-tolerant 3.3V/5V I/O flexibility via VCCO pin assignment, and deterministic timing model eliminating fanout, expander, or PIM routing penalties.

Technical Context

The CY37128P160-125AXIT implements a modular architecture with four logic blocks, each containing a 72×87 product term array, intelligent product term allocator (0–16 terms per macrocell), and 16 macrocells (mix of I/O and buried). Its Programmable Interconnect Matrix (PIM) provides 36 global inputs per logic block with no route-dependent delays - all worst-case PIM propagation incorporated into t_PD = 6.5 ns.

It supports five dedicated input pins (four clock-capable), asynchronous set/reset and OE product terms per block, polarity-controllable clocks (CLK0–CLK3 + PTCLK), and configurable macrocell modes (combinatorial, D/T/latch, registered input). Bus-hold and slew-rate control are per-I/O, enabled via configuration bits without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Macrocell Count	128 macrocells distributed across four logic blocks - enables medium-complexity glue logic without FPGA overhead.
Max Frequency (f_MAX)	125 MHz - guarantees synchronous operation up to 8 ns clock period in critical paths.
Propagation Delay (t_PD)	6.5 ns - worst-case combinatorial delay from input to registered output, fully characterized across voltage/temperature.
I/O Pins	128 user-programmable I/Os - supports wide parallel buses (e.g., ISA, PC/104) with pin-compatible scaling to CY37256/CY37384.
Supply Voltage	5V VCC with 3.3V/5V I/O tolerance - VCCO pins configure output levels: 5V TTL or 3.3V JEDEC CMOS, both 5V-tolerant.
Package	160-pin TQFP (24×24 mm, 0.5 mm pitch) - RoHS-compliant, surface-mount, thermal performance validated for industrial ambient.
JTAG Interface	IEEE 1149.1-compliant boundary scan and ISR programming - enables in-circuit reconfiguration without socket removal or power cycle.

Pinout & Package

Package: 160-pin Thin Quad Flat Package (TQFP), 24 mm × 24 mm body, 0.5 mm lead pitch, exposed pad optional. Pinout conforms to Cypress Ultra37000 family standard for 160-pin TQFP - identical across CY37128, CY37256, and CY37384 densities to enable hardware reuse.

Pin/Terminal	Circuit Role	Design Meaning
TCK, TMS, TDI, TDO	JTAG Test Access Port	Enable boundary scan testing and serial ISP programming; no external pull-ups required per datasheet.
CLK0–CLK3	Dedicated Synchronous Clock Inputs	Four globally routed clocks per logic block; polarity programmable for rising/falling edge triggering.
VCCO[0–3]	I/O Power Supply Pins	Set output voltage level: 5V for TTL, 3.3V for JEDEC CMOS; each group powers adjacent I/O banks independently.
GND / VCC	Power Distribution	12 GND and 4 VCC pins distributed for low-noise decoupling; recommended 0.1 µF ceramic per VCC-GND pair.
I/O[0–127]	Configurable Bidirectional Pins	Support bus-hold, slew control, Schmitt-trigger input, and programmable drive strength - no external resistors needed.

Key Features

Feature	Design Value
In-System Reprogrammability (ISR™)	JTAG-based field updates without changing PCB layout, timing closure, or pin assignments - reduces NRE and time-to-fix.
Deterministic Timing Model	No fanout, expander, PIM, or product-term-sharing penalties - static timing analysis yields guaranteed t_PD = 6.5 ns.
Flexible Clocking Architecture	Four global clocks + one product-term clock per logic block, all with polarity control - supports mixed-edge and asynchronous logic.
Programmable Bus-Hold	On-chip weak latch on every I/O - eliminates need for external pull-ups in tri-state bus applications and simplifies prototyping.
Product Term Steering & Sharing	0–16 product terms dynamically allocated per macrocell; sharing across groups of four macrocells - maximizes logic density without speed loss.

Applications

PCI Local Bus Glue Logic

FPGA Configuration Manager

Use Scenario: Interfacing legacy PCI peripherals (e.g., UART, GPIO, DMA controllers) to modern microcontrollers lacking native PCI support.

IC Role / Device Role / Timing Role: CPLD implements address decoding, burst termination, parity generation, and bus arbitration with sub-8 ns setup/hold compliance.

Use Value: Meets PCI v2.2 electrical specs (VIH = 2.0V min, VOL = 0.4V max) and timing (t_CO ≤ 6.5 ns) without external buffers or timing margining.

Use Scenario: Loading configuration bitstreams into Xilinx Spartan or Altera Cyclone FPGAs during power-up or dynamic reconfiguration.

IC Role / Device Role / Timing Role: Acts as a state-machine-based serial-to-parallel converter with CRC validation, watchdog timeout, and fallback image selection.

Use Value: Leverages 128 macrocells for multi-image storage, JTAG ISP for field updates, and bus-hold to prevent configuration corruption during hot-swap.

Industrial Control Backplane Interface

Legacy Display Controller Bridge

Use Scenario: Adapting proprietary 16-bit parallel control buses (e.g., Modbus RTU over parallel) to ARM-based HMI processors.

IC Role / Device Role / Timing Role: Performs protocol translation, handshaking (RDY/BSY), data width conversion (8↔16 bit), and error detection.

Use Value: Uses buried macrocells for internal registers and I/O macrocells for bus drivers - all within fixed 160-pin footprint for mechanical compatibility.

Use Scenario: Converting TTL-level VGA timing (HSYNC/VSYNC) and 8-bit RGB to LVDS or embedded DisplayPort signals for panel integration.

IC Role / Device Role / Timing Role: Generates precise pixel clocks, aligns data valid windows, and inserts blanking intervals using product-term clocking.

Use Value: Achieves <±1 ns skew between RGB channels via deterministic PIM routing and local clock distribution - no external PLL required.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AMD XC95144XL-10TQ144C	144 macrocells, 144-pin TQFP, 10 ns t_PD, 3.3V-only supply, no VCCO pinning flexibility.	Lacks 5V tolerance and dual-voltage I/O; requires level shifters for mixed-voltage systems.	Choose when system is fully 3.3V and higher macrocell count justifies package change.
Lattice ispMACH 4128V-10T144	128 macrocells, 144-pin TQFP, 10 ns t_PD, 3.3V supply, IEEE 1532 ISP (not JTAG).	Non-JTAG programming interface; no dedicated clock pins - clocks share general I/O resources.	Prefer only if existing toolchain mandates Lattice PAC-Designer and board already uses 144-pin footprint.

Compared with XC95144XL-10TQ144C and ispMACH 4128V-10T144, CY37128P160-125AXIT offers superior voltage flexibility (5V/3.3V I/O), JTAG-standardized ISP, deterministic timing, and pin-compatible scalability - making it optimal for industrial upgrades where legacy 5V signaling coexists with newer 3.3V subsystems.

Availability

CY37128P160-125AXIT is available at Aetrix Electronics and suitable for PCI-compliant interface design, FPGA configuration management, and industrial backplane bridging requiring stable component supply across extended product lifecycles.

Supply support for CY37128P160-125AXIT 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 fabless semiconductor company specializing in programmable logic, memory, and USB/USB-C solutions, headquartered in San Jose, California.

The Ultra37000 CPLD family was engineered to deliver high-density, pin-stable, in-system reprogrammable logic for industrial control, communications infrastructure, and embedded systems requiring deterministic timing and long-term supply assurance.

FAQ

Is CY37128P160-125AXIT compatible with 3.3V I/O standards while powered by 5V?

Yes. The device uses separate VCCO pins to set I/O voltage levels: connecting VCCO to 3.3V configures outputs to meet 3.3V JEDEC CMOS specifications (VOH ≥ 2.4V, VOL ≤ 0.4V) while maintaining full 5V tolerance on all I/O pins - no level shifters required for interfacing with 5V peripherals.

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

No. All I/O pins feature programmable bus-hold circuitry that maintains the last driven state during high-impedance conditions, eliminating external pull-ups. JTAG pins (TCK, TMS, TDI, TDO) are internally biased per IEEE 1149.1 and require no external resistors for compliant operation.

Can CY37128P160-125AXIT replace older CY37128 devices with different speed grades or packages?

Yes - within the same voltage family (5V), pinout is identical across all Ultra37000 160-pin TQFP variants (e.g., CY37128P160-100AXI, -125AXIT). Timing parameters scale predictably with speed grade; migration requires only recompilation and timing verification - no PCB changes.

What development tools support programming and simulation of this CPLD?

Cypress Warp v6.2+ and third-party tools including Mentor Graphics Precision RTL, Synopsys Synplify Pro, and Aldec Active-HDL fully support the Ultra37000 family. Bitstream generation, timing analysis, and JTAG programming are validated against Document #38-03007 Rev. *E.

CY37128P160-125AXIT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: Ultra37000™

Package/Case:: 160-LQFP

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Programmable Type:: In-System Reprogrammable™ (ISR™) CMOS

Delay Time tpd(1) Max:: 10 ns

Voltage Supply - Internal:: 4.5V ~ 5.5V

Number of Logic Elements/Blocks:: -

Number of Macrocells:: 128

Number of Gates:: -

Number of I/O:: 133

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 160-TQFP (24x24)

CY37128P160-125AXIT FAQ

1.How can I place an order for CY37128P160-125AXIT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY37128P160-125AXIT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY37128P160-125AXIT reliable?

The price and inventory of CY37128P160-125AXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY37128P160-125AXIT is usually 5 days.

3.What payment methods are accepted for CY37128P160-125AXIT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY37128P160-125AXIT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY37128P160-125AXIT?

CY37128P160-125AXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY37128P160-125AXIT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY37128P160-125AXIT?

For technical support, including CY37128P160-125AXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY37128P160-125AXIT requirements.

6.How does Aetrix verify that CY37128P160-125AXIT is sourced from the original manufacturer or authorized distributors?

All CY37128P160-125AXIT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY37128P160-125AXIT meets industry standards.

7.What is the process for return or replacement of CY37128P160-125AXIT?

All CY37128P160-125AXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY37128P160-125AXIT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY37128P160-125AXIT part is unused and in its original packaging.

Return procedure for CY37128P160-125AXIT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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