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

Infineon Technologies CY37032P44-125AXCT

Name: CY37032P44-125AXCT
Brand: Infineon Technologies
SKU: CY37032P44-125AXCT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY37032P44-125AXCT

Manufacturer:: Infineon Technologies

Category:: CPLDs (Complex Programmable Logic Devices)

Package:: 44-LQFP

Datasheet:: CY37032P44-125AXCT.pdf

Description:: IC CPLD 32MC 10NS 44TQFP

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Product details

Overview

CY37032P44-125AXCT from Cypress Semiconductor is a 32-macrocell In-System Reprogrammable (ISR™) Complex Programmable Logic Device (CPLD) in a 44-pin TQFP package, operating at 5V with 125 MHz maximum frequency (f_MAX) and 12.5 ns propagation delay (t_PD). It features four synchronous clocks, five dedicated inputs (including four clock pins), programmable bus-hold on all I/Os, and JTAG-compliant ISR for field reconfiguration without pinout or timing changes. Used in legacy PCI interface glue logic and industrial control state machines.

For engineers reviewing the CY37032P44-125AXCT datasheet, CY37032P44-125AXCT pinout, CY37032P44-125AXCT application, or CY37032P44-125AXCT equivalent, key selection criteria include its fixed 32-macrocell density, 5V/3.3V I/O tolerance via VCCO configuration, JTAG boundary-scan support, 125 MHz speed bin, and compatibility with Warp® and third-party synthesis tools for rapid CPLD implementation.

Technical Context

The CY37032P44-125AXCT implements a single logic block architecture with a 72 × 87 product term array delivering up to 16 product terms per macrocell, intelligent product term steering and sharing, and four global synchronous clocks (CLK0–CLK3) plus one asynchronous product term clock (PTCLK). All 32 macrocells are configurable as I/O or buried types with D/T/latch registers and programmable polarity.

Its Programmable Interconnect Matrix (PIM) provides 36 global inputs per logic block (with complements), eliminates route-dependent delays, and incorporates worst-case PIM propagation into t_PD specifications. The device supports PCI Local Bus electrical compliance, 5V-tolerant 3.3V I/O operation when VCCO = 3.3V, and 3.3V-compatible bus-hold on all 37 I/O pins (44-pin TQFP package).

Key Specifications

Parameter	Value and Actual Design Meaning
Macrocell Count	32 macrocells - fixed logic capacity for mid-complexity glue logic and control sequencing
Maximum Frequency (f_MAX)	125 MHz - defines highest synchronous clock rate for registered logic paths
Propagation Delay (t_PD)	12.5 ns - worst-case combinatorial path delay from input to output, independent of fanout or routing
I/O Pins	37 user I/O pins - 44-pin TQFP package with 5 dedicated inputs (4 clocks + 1 general)
Supply Voltage	5V VCC with 3.3V/5V I/O support - VCCO pin configures output voltage level and 5V tolerance
ISR Interface	JTAG-compliant TDI/TDO/TCK/TMS - enables in-system reprogramming without removing device from PCB
Bus-Hold	Programmable on all I/Os - eliminates external pull-ups during tri-state bus arbitration and prototyping

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
TCK	JTAG Test Clock	Synchronizes JTAG instruction and data shifts; required for ISR programming and boundary-scan
TMS	JTAG Test Mode Select	Controls JTAG state machine transitions; determines whether instruction or data register is accessed
TDI	JTAG Test Data Input	Serial input for JTAG instructions and configuration bitstream during ISP
TDO	JTAG Test Data Output	Serial output for JTAG readback, boundary-scan data, and status verification
CLK0–CLK3	Dedicated Synchronous Clock Inputs	Four independent global clocks; each configurable for rising/falling edge triggering per logic block
VCCO	I/O Power Supply	Configures output voltage level (3.3V or 5V) and enables 5V-tolerant I/O operation
GND / VCC	Power Ground / Core Supply	Separate power domains: VCC = 5V core, GND = common reference for all signals and power rails

Key Features

Feature	Design Value
In-System Reprogrammability (ISR™)	JTAG-based field updates preserve pinout and timing - enables late-stage logic fixes without board respin
Flexible Clocking Architecture	Four synchronous clocks + one product-term clock per logic block - supports mixed-edge and asynchronous control in same design
Intelligent Product Term Allocator	0–16 product terms assignable per macrocell with steering and sharing - maximizes logic utilization without speed penalty
Programmable Slew Rate	Per-output fast/slow edge control - reduces EMI in noise-sensitive systems while maintaining performance where needed
PCI-Compatible I/O	Meets PCI Local Bus Specification electrical and timing requirements - validated for use in add-in card and motherboard glue logic

Applications

Industrial Control Logic

Legacy PCI Interface Glue

Use Scenario: Real-time sequencing of motor drives, sensor multiplexing, and safety interlock monitoring in PLC backplanes.

IC Role / Device Role / Timing Role: Configurable state machine implementing deterministic control flow with sub-13 ns response latency.

Use Value: Fixed t_PD and no fanout delay ensure predictable timing across temperature and voltage; bus-hold prevents floating inputs during I/O reconfiguration.

Use Scenario: Bridging between legacy PCI peripherals (e.g., ISA-to-PCI bridges, custom I/O cards) and host controllers.

IC Role / Device Role / Timing Role: Level-shifting, protocol translation, and address decoding with PCI-compliant drive strength and setup/hold margins.

Use Value: 5V-tolerant I/O and VCCO-selectable outputs enable direct interfacing to both 3.3V and 5V PCI slots without external level shifters.

Test Equipment Signal Routing

Medical Device Subsystem Control

Use Scenario: Dynamic signal path switching, trigger synchronization, and calibration logic in automated test equipment (ATE) mainframes.

IC Role / Device Role / Timing Role: High-reliability combinatorial routing fabric with JTAG-accessible internal nodes for real-time diagnostics.

Use Value: Boundary-scan capability allows in-circuit verification of interconnect integrity; ISR enables firmware-updatable routing maps.

Use Scenario: Safety-critical subsystem coordination in diagnostic imaging devices (e.g., X-ray generator timing, detector gating).

IC Role / Device Role / Timing Role: Fail-safe sequencer managing power-up sequences, watchdog handshaking, and fault isolation logic.

Use Value: Asynchronous set/reset product terms enable hardware-level reset propagation; programmable slew rate meets IEC 60601 EMI limits.

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
XC9536XL-10VQG44C	36 macrocells, 3.3V-only supply, 10 ns t_PD, non-JTAG ISP (JTAG only for boundary scan)	Lacks 5V I/O tolerance and VCCO flexibility; requires external level shifting for mixed-voltage PCI designs	Select when 3.3V-only operation and faster t_PD are prioritized over voltage flexibility and full ISR capability
ATF1502AS-10AU44	32 macrocells, 3.3V supply, 10 ns t_PD, JTAG ISP, but no dedicated clock pins or bus-hold	No built-in bus-hold or dedicated clock inputs - increases external component count for robust bus arbitration	Select for cost-sensitive, low-power 3.3V-only applications where external pull-ups and clock buffers are acceptable

Compared with XC9536XL-10VQG44C and ATF1502AS-10AU44, CY37032P44-125AXCT uniquely combines 5V/3.3V I/O flexibility, integrated bus-hold, four dedicated clock inputs, and full JTAG-based ISR - making it optimal for legacy PCI system upgrades requiring field-upgradable, voltage-agile glue logic.

Availability

CY37032P44-125AXCT is available at Aetrix Electronics and suitable for industrial control logic, legacy PCI interface design, and medical subsystem sequencing requiring stable component supply and long-lifecycle support.

Supply support for CY37032P44-125AXCT 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 legacy system integration - specifically targeting PCI-compliant glue logic, control state machines, and interface bridging where ISR and voltage flexibility are critical.

FAQ

Is CY37032P44-125AXCT compatible with 3.3V I/O buses?

Yes. When VCCO pins are connected to 3.3V, the device delivers JEDEC-standard 3.3V CMOS output levels and maintains 5V tolerance on all I/Os - enabling safe interfacing with both 3.3V and 5V PCI slots without level shifters.

Does this device support boundary-scan testing?

Yes. CY37032P44-125AXCT implements IEEE 1149.1-compliant JTAG boundary-scan architecture, allowing full pin-level interconnect testing, I/O control, and visibility into internal logic states during production and field diagnostics.

Can the device be reprogrammed while soldered on the target board?

Yes. Its In-System Reprogrammable (ISR™) feature uses the standard JTAG interface (TCK/TMS/TDI/TDO) to load new configuration bitstreams without removal from the PCB - supporting firmware updates and logic revisions in deployed systems.

What development tools support this CPLD?

Cypress Warp® software (legacy) and third-party tools including Lattice ispLEVER Classic and Mentor Graphics Precision RTL provide full synthesis, fitting, and programming support for CY37032P44-125AXCT using JEDEC JED files or SVF programming scripts.

CY37032P44-125AXCT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: Ultra37000™

Package/Case:: 44-LQFP

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Verified

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

Delay Time tpd(1) Max:: 10 ns

Voltage Supply - Internal:: 4.75V ~ 5.25V

Number of Logic Elements/Blocks:: -

Number of Macrocells:: 32

Number of Gates:: -

Number of I/O:: 37

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 44-TQFP (10x10)

CY37032P44-125AXCT FAQ

1.How can I place an order for CY37032P44-125AXCT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY37032P44-125AXCT 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 CY37032P44-125AXCT reliable?

The price and inventory of CY37032P44-125AXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY37032P44-125AXCT is usually 5 days.

3.What payment methods are accepted for CY37032P44-125AXCT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY37032P44-125AXCT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY37032P44-125AXCT?

CY37032P44-125AXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY37032P44-125AXCT 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 CY37032P44-125AXCT?

For technical support, including CY37032P44-125AXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY37032P44-125AXCT requirements.

6.How does Aetrix verify that CY37032P44-125AXCT is sourced from the original manufacturer or authorized distributors?

All CY37032P44-125AXCT 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 CY37032P44-125AXCT meets industry standards.

7.What is the process for return or replacement of CY37032P44-125AXCT?

All CY37032P44-125AXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY37032P44-125AXCT, 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 CY37032P44-125AXCT part is unused and in its original packaging.

Return procedure for CY37032P44-125AXCT:

1.Submit a request within 90 days.

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

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