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Infineon Technologies CY37128P100-125AXC
- Part No.:
- CY37128P100-125AXC
- Manufacturer:
- Infineon Technologies
- Package:
- 100-LQFP
- Datasheet:
-
CY37128P100-125AXC.pdf
- Description:
- IC CPLD 128MC 10NS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,922
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Product details
Overview
CY37128P100-125AXC from Cypress Semiconductor is a 128-macrocell In-System Reprogrammable (ISR™) Complex Programmable Logic Device (CPLD) in the Ultra37000 family, operating at 5V with 100-pin TQFP package and 125 MHz maximum frequency (tPD = 12.5 ns). It features four synchronous clocks, programmable bus-hold on all I/Os, and JTAG-based reconfiguration without pinout or timing changes. It is used in PCI-compliant interface logic, legacy bus bridging, and system control glue logic.
For engineers reviewing the CY37128P100-125AXC datasheet, CY37128P100-125AXC pinout, CY37128P100-125AXC application, or CY37128P100-125AXC equivalent, key selection criteria include macrocell count, I/O count (133), tPD (12.5 ns), JTAG ISR capability, and 5V/3.3V I/O tolerance with VCCO-selectable levels.
Technical Context
The CY37128P100-125AXC implements a modular architecture with multiple logic blocks interconnected via a fully global Programmable Interconnect Matrix (PIM), eliminating route-dependent delays. Each logic block contains a 72 × 87 product term array, intelligent allocator for 0–16 product terms per macrocell, and 16 macrocells (mix of I/O and buried).
It supports flexible clocking with four global synchronous clocks (CLK0–CLK3), one asynchronous product-term clock (PTCLK), and programmable polarity per clock. All I/Os feature configurable slew rate (fast/slow) and user-enabled bus-hold latching to maintain last state during high-Z conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Macrocells | 128 - provides combinational and registered logic capacity for medium-complexity glue logic or state machines |
| I/O Pins | 133 - supports wide parallel bus interfaces (e.g., ISA, LPC) and multi-signal control planes |
| Propagation Delay (tPD) | 12.5 ns - guarantees deterministic timing for 125 MHz synchronous operation without fanout or routing penalties |
| Max Frequency (fMAX) | 125 MHz - enables real-time control loop execution and high-speed data path synchronization |
| Supply Voltage | 5V VCC with VCCO-selectable 3.3V/5V - allows mixed-voltage board interfacing while maintaining 5V ISR programming compatibility |
| JTAG Interface | IEEE 1149.1-compliant - enables in-system reprogramming, boundary scan testing, and design iteration without hardware modification |
| Bus-Hold Enable | Per-I/O programmable - eliminates external pull-ups in bus-hold applications and prevents floating inputs during tri-state transitions |
Pinout & Package
Package: 100-lead Thin Quad Flat Package (TQFP), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant and lead-free option available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TCK, TMS, TDI, TDO | JTAG Test Access Port | Enable IEEE 1149.1 boundary scan and in-system reprogramming without requiring device removal |
| CLK0–CLK3 | Dedicated Synchronous Clock Inputs | Provide four independent clock domains per logic block; each supports programmable polarity for rising/falling edge triggering |
| PTCLK | Asynchronous Product-Term Clock Input | Allows clock generation from internal logic equations, enabling event-driven or conditional clocking |
| VCC, GND | Power and Ground | VCC = 5V core supply; separate VCCO pins allow per-bank I/O voltage selection (3.3V or 5V) |
| I/O[0]–I/O[132] | Configurable Bidirectional I/O | Each supports input register, output enable control, slew rate selection, and bus-hold latch |
Key Features
| Feature | Design Value |
|---|---|
| In-System Reprogrammability (ISR™) | JTAG-based field updates preserve pinout and timing across logic revisions, reducing NRE and respin risk |
| Intelligent Product Term Allocator | Dynamically assigns 0–16 product terms per macrocell and enables sharing across groups of four macrocells without speed penalty |
| Programmable Slew Rate Control | Per-output fast/slow edge selection balances EMI compliance (slow) against timing margin (fast) |
| Dedicated Input/Clock Pins | Five dedicated pins including four clock inputs support simultaneous multi-domain clocking and input registration |
| PCI Electrical Compliance | Meets PCI Local Bus Specification electrical and timing requirements for 5V signaling environments |
Applications
| PCI Interface Glue Logic | Legacy Bus Bridge Controller |
|---|---|
Use Scenario: Integrating non-PCI peripherals (e.g., UART, GPIO, EEPROM) into a PCI slot via custom address decoding and protocol translation. IC Role / Device Role / Timing Role: Acts as synchronous combinatorial decoder and registered control sequencer, managing PCI FRAME#, IRDY#, TRDY#, and DEVSEL# handshake signals. Use Value: Eliminates discrete logic chips; leverages 125 MHz fMAX and deterministic 12.5 ns tPD to meet PCI timing budgets without manual timing closure. | Use Scenario: Bridging ISA or LPC buses to modern microcontroller subsystems in industrial control panels with mixed-voltage I/O. IC Role / Device Role / Timing Role: Provides level-shifted, registered address/data steering and interrupt arbitration between 5V ISA and 3.3V MCU domains. Use Value: Uses VCCO-selectable I/O and bus-hold to tolerate voltage mismatches and prevent floating lines during hot-swap or reset events. |
| Field-Upgradeable System Monitor | Firmware Bootloader Sequencer |
Use Scenario: Monitoring power rails, temperature sensors, and watchdog timers in telecom line cards where firmware updates must not disrupt monitoring. IC Role / Device Role / Timing Role: Implements autonomous state machine that samples analog comparators and asserts reset or alert signals independently of host CPU. Use Value: ISR capability allows runtime logic updates to detection thresholds or response policies without halting monitoring function or changing PCB layout. | Use Scenario: Managing secure boot sequence for ARM Cortex-M devices, verifying signature, decrypting payload, and configuring memory mapping before handoff. IC Role / Device Role / Timing Role: Serves as deterministic, tamper-resistant boot controller with glitch-resistant clock gating and register-based state retention. Use Value: Buried macrocells retain critical boot state during power brownouts; 128 macrocells accommodate complex authentication and decryption logic. |
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 |
|---|---|---|---|
| XC95144XL-10TQ100I | 144 macrocells, 3.3V-only supply, 10 ns tPD, Xilinx CoolRunner-II architecture with lower static current | Lacks 5V-tolerant I/O and VCCO-selectable levels; requires external level shifters for mixed-voltage systems | Select when lowest power and 3.3V-only operation are primary; avoid if PCI 5V signaling or legacy bus interfacing is required |
| ATF1508AS-10QU100 | 128 macrocells, 5V supply, 10 ns tPD, Atmel (now Microchip) ISP CPLD with JTAG and enhanced security fuse | No bus-hold; limited clock flexibility (only two global clocks); no product-term clocking | Select for cost-sensitive, non-PCI applications needing basic reprogrammability; avoid where bus-hold or multi-clock domain control is essential |
Compared with XC95144XL-10TQ100I and ATF1508AS-10QU100, CY37128P100-125AXC uniquely combines 5V/3.3V I/O tolerance, PCI compliance, per-I/O bus-hold, and full product-term clocking-making it optimal for legacy-to-modern interface consolidation where signal integrity and field update reliability are critical.
Availability
CY37128P100-125AXC is available at Aetrix Electronics and suitable for PCI interface design, industrial control system upgrades, and embedded boot sequencing requiring stable component supply and long-term lifecycle support.
Supply support for CY37128P100-125AXC 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, particularly in PCI-compliant and mixed-voltage legacy interface applications.
FAQ
What is the difference between CY37128P100-125AXC and CY37128V-125AXC?
CY37128P100-125AXC is a 5V-core device supporting both 5V and 3.3V I/O levels via VCCO configuration, while CY37128V-125AXC is a 3.3V-core device requiring 3.3V on all VCCO pins. The 'P' suffix denotes plastic TQFP packaging and 5V operation; the 'V' suffix indicates 3.3V-only operation. Only the 5V version supports 5V-tolerant I/O with VCCO = 3.3V and meets PCI electrical specs.
Does CY37128P100-125AXC require external pull-up resistors on I/O pins?
No. All I/O pins include user-programmable bus-hold circuitry-a weak latch that maintains the last driven logic state during high-impedance conditions. This eliminates the need for external pull-ups in bus-interface or unconnected-pin scenarios, reducing BOM count and board space.
Can CY37128P100-125AXC be reprogrammed while soldered on the target board?
Yes. It supports full In-System Reprogrammability (ISR™) via its IEEE 1149.1 JTAG interface (TCK, TMS, TDI, TDO). Reprogramming preserves pin assignments and timing behavior, allowing firmware or logic updates without removing the device or modifying PCB traces.
How many logic blocks does CY37128P100-125AXC contain?
CY37128P100-125AXC contains eight logic blocks, each with 16 macrocells (totaling 128), a 72 × 87 product term array, and dedicated resources including four synchronous clocks, product-term clock, and OE/product-term steering logic. This architecture enables efficient partitioning of large logic functions across independent routing domains.
CY37128P100-125AXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Ultra37000™
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- 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:
- 128
- Number of Gates:
- -
- Number of I/O:
- 69
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
CY37128P100-125AXC FAQ
1.How can I place an order for CY37128P100-125AXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY37128P100-125AXC 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 CY37128P100-125AXC reliable?
The price and inventory of CY37128P100-125AXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY37128P100-125AXC is usually 5 days.
3.What payment methods are accepted for CY37128P100-125AXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY37128P100-125AXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY37128P100-125AXC?
CY37128P100-125AXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY37128P100-125AXC 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 CY37128P100-125AXC?
For technical support, including CY37128P100-125AXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY37128P100-125AXC requirements.
6.How does Aetrix verify that CY37128P100-125AXC is sourced from the original manufacturer or authorized distributors?
All CY37128P100-125AXC 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 CY37128P100-125AXC meets industry standards.
7.What is the process for return or replacement of CY37128P100-125AXC?
All CY37128P100-125AXC units undergo pre-shipment inspection (PSI). If there is an issue with CY37128P100-125AXC, 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 CY37128P100-125AXC part is unused and in its original packaging.
Return procedure for CY37128P100-125AXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY37128P100-125AXC Tags
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5M40ZE64C5N
Intel
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ATF1502ASV-15AU44
Microchip Technology
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5M80ZE64C5N
Intel
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5M80ZT100C5N
Intel
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ATF1502AS-10AU44
Microchip Technology
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ATF1502AS-10JU44
Microchip Technology
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5M80ZE64I5N
Intel
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5M80ZT100I5N
Intel
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LC4032V-75TN48C
Lattice Semiconductor Corporation
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ATF1504ASV-15AU44
Microchip Technology
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ATF1504AS-10JU44
Microchip Technology
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5M160ZE64C5N
Intel
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