Infineon Technologies CY37128VP100-83AXC
- Part No.:
- CY37128VP100-83AXC
- Manufacturer:
- Infineon Technologies
- Package:
- 100-LQFP
- Datasheet:
-
CY37128VP100-83AXC.pdf
- Description:
- IC CPLD 128MC 15NS 100TQFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,866
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Product details
Overview
CY37128VP100-83AXC from Cypress Semiconductor is a 128-macrocell, 3.3V In-System Reprogrammable (ISR™) Complex Programmable Logic Device (CPLD) in a 100-pin TQFP package. It features five dedicated inputs (including four clock pins), supports up to 133 I/Os, delivers 83 MHz maximum frequency (fMAX), and incorporates JTAG-based reprogramming without pinout or timing changes. It is used in PCI-compliant interface logic, legacy bus bridging, and FPGA configuration management.
For engineers reviewing the CY37128VP100-83AXC datasheet, CY37128VP100-83AXC pinout, CY37128VP100-83AXC application, or CY37128VP100-83AXC equivalent, key selection criteria include its 3.3V operation with 5V-tolerant I/Os, programmable slew rate control per output, bus-hold capability on all I/Os, and product term–based asynchronous clocking for flexible timing design.
Technical Context
The CY37128VP100-83AXC implements the Ultra37000 architecture with a Programmable Interconnect Matrix (PIM) distributing 36 global signals-including macrocell feedbacks and dedicated inputs-to each logic block. All PIM routing delays are fully incorporated into published timing specs, eliminating route-dependent path analysis.
Each of its eight logic blocks contains a 72 × 87 product term array, intelligent allocator supporting 0–16 product terms per macrocell, and 16 macrocells (mix of I/O and buried). Clocking includes four synchronous clocks (CLK0–CLK3) plus one product term clock (PTCLK), all with programmable polarity and independent logic-block-level assignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Macrocells | 128 total, distributed across eight logic blocks; enables medium-complexity glue logic or state-machine implementation. |
| Max fMAX | 83 MHz - guaranteed minimum operating frequency under worst-case voltage/temperature conditions. |
| I/O Pins | 133 - actual usable I/O count in 100-pin TQFP package; includes dedicated clock and input pins. |
| VCC Supply | 3.3 V ± 0.3 V - core logic supply; requires 3.3 V on all VCCO pins for I/O level compliance. |
| I/O Voltage Tolerance | 5V-tolerant - allows direct interfacing with 5V buses without level shifters, critical for mixed-voltage systems. |
| Programmable Slew Rate | Per-output fast/slow selection - reduces EMI in noise-sensitive applications or maximizes edge speed in high-speed paths. |
| Bus-Hold Enable | Per-I/O programmable - eliminates external pull-ups during prototyping or when pins float, simplifying board layout. |
Pinout & Package
Package: 100-pin Thin Quad Flat Package (TQFP), 14 mm × 14 mm, 0.5 mm pitch, lead-free (RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TCK, TMS, TDI, TDO | JTAG boundary-scan and ISR interface | Enable in-system reprogramming and test without removing device; compliant with IEEE 1149.1. |
| CLK0–CLK3 | Dedicated synchronous clock inputs | Four globally distributed clocks, each configurable for rising/falling-edge triggering per logic block. |
| PTCLK | Product term clock input | Asynchronous clock derived from local product term logic-enables event-driven register updates. |
| VCC, VCCO, GND | Power and ground terminals | VCC = 3.3 V core; VCCO = 3.3 V I/O supply (5V-tolerant); multiple pins ensure low-impedance distribution. |
| I/O[0]–I/O[132] | Configurable bidirectional I/O cells | Each supports combinatorial/register/latch modes, programmable slew, bus-hold, and OE control via dedicated product terms. |
Key Features
| Feature | Design Value |
|---|---|
| In-System Reprogrammable (ISR™) | JTAG-based field updates preserve pinout and timing-enables firmware patching and late-stage logic fixes without PCB respin. |
| Intelligent Product Term Allocator | Dynamically assigns 0–16 product terms per macrocell and shares terms across groups of four macrocells-maximizes logic density without timing penalty. |
| Flexible Clocking Architecture | Four synchronous clocks + one product term clock, all with polarity control-supports mixed-edge synchronous and event-triggered logic in same design. |
| PCI-Compliant Electrical Interface | Meets PCI Local Bus Specification timing and drive requirements-validates use in add-in cards and host bridge logic without external buffering. |
| Programmable Bus-Hold | On-chip weak latch on every I/O-eliminates need for external pull-up resistors and prevents floating inputs during tri-state transitions. |
Applications
| PCI Bus Interface Logic | Legacy System Bus Bridging |
|---|---|
Use Scenario: Implementing address decoding, bus arbitration, and protocol translation between PCI slots and legacy ISA or LPC peripherals. IC Role / Device Role / Timing Role: CPLD acts as a synchronous glue logic controller, managing wait-state insertion, burst termination, and parity generation using dedicated clock domains. Use Value: Leverages 83 MHz fMAX and 5V-tolerant I/Os to meet PCI timing budgets while interfacing directly with 5V legacy devices. |
Use Scenario: Connecting modern microcontrollers to parallel flash memory, SRAM, or FPGA configuration PROMs using non-standard bus widths or timing. IC Role / Device Role / Timing Role: Provides customizable address latching, chip-select generation, and read/write strobe shaping with deterministic propagation delay. Use Value: Uses fixed timing model (no fanout/expander delays) to guarantee setup/hold margins across temperature and voltage variations. |
| FPGA Configuration Manager | Industrial Control Sequencer |
Use Scenario: Storing and loading bitstreams into Xilinx or Altera FPGAs during power-up or field update cycles. IC Role / Device Role / Timing Role: Acts as a serial-to-parallel shift register with CRC validation and multi-FPGA daisy-chain support via JTAG. Use Value: Utilizes ISR capability to update configuration logic remotely-enabling secure, over-the-air FPGA reconfiguration. |
Use Scenario: Replacing discrete 74-series logic in PLC I/O modules for motor start/stop sequencing, safety interlock monitoring, and watchdog timer management. IC Role / Device Role / Timing Role: Implements deterministic state machines with asynchronous reset and clock-gated outputs for fail-safe behavior. Use Value: Employs buried macrocells with programmable set/reset product terms to enforce hardware-level safety constraints independent of software. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD-based interface logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC95144XL-10TQ100I | 144 macrocells, 10 ns tPD, 3.3V-only, no 5V-tolerant I/Os, no bus-hold | Requires external level shifters for 5V bus interfacing; lacks integrated bus-hold for floating pin handling | Preferred where higher macrocell count is needed and system operates exclusively at 3.3V with controlled I/O states |
| EPM3128ATC100-10N | 128 macrocells, 10 ns tPD, 3.3V core/IO, no 5V tolerance, JTAG but no ISR-certified reprogrammability | Lacks guaranteed pinout/timing stability across reprogramming cycles; no built-in bus-hold or slew control | Suitable for cost-sensitive, static designs where field updates are unnecessary and external pull-ups are acceptable |
Compared with XC95144XL-10TQ100I and EPM3128ATC100-10N, CY37128VP100-83AXC uniquely combines 5V-tolerant I/Os, per-pin bus-hold, and ISR-certified reprogrammability-making it optimal for mixed-voltage industrial interfaces requiring field-upgradable logic with zero hardware impact.
Availability
CY37128VP100-83AXC is available at Aetrix Electronics and suitable for PCI add-in card development, FPGA configuration management, and industrial control sequencer design requiring stable component supply across extended production lifecycles.
Supply support for CY37128VP100-83AXC 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-stable programmable logic for system-level glue logic, bus interface, and control applications-emphasizing ease of migration and field reconfigurability.
FAQ
Is CY37128VP100-83AXC compatible with 5V TTL logic levels?
Yes-its I/Os are 5V-tolerant when VCCO is set to 3.3V, allowing direct connection to 5V buses without level shifters. However, output voltage swing follows 3.3V JEDEC CMOS levels (VOH ≥ 2.4V, VOL ≤ 0.4V), not full 5V TTL swing. Input thresholds remain compatible with standard 5V TTL logic.
Does CY37128VP100-83AXC support hot-swap reprogramming via JTAG?
Yes-its ISR™ feature enables live reprogramming through the JTAG interface (TCK/TMS/TDI/TDO) while the device remains powered and operational in-circuit. No power cycle or reset is required, and pinout/timing remains unchanged per Cypress documentation Rev. *E.
What is the maximum number of I/Os usable in the 100-pin TQFP package?
133 I/Os are supported-this includes all user-configurable pins except dedicated JTAG and power/ground pins. The 100-pin TQFP footprint accommodates 133 functional I/Os because some pins serve dual roles (e.g., dedicated clocks also usable as general inputs) and the package uses internal bonding optimization per Cypress Device-Package Offering table.
Can bus-hold be disabled per individual I/O pin?
Yes-bus-hold is individually programmable per I/O cell via configuration bit settings in the device's fuse map. This allows selective activation on signal lines prone to floating (e.g., shared data buses) while disabling it on actively driven control lines to reduce leakage current and switching noise.
CY37128VP100-83AXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Ultra37000™
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In-System Reprogrammable™ (ISR™) CMOS
- Delay Time tpd(1) Max:
- 15 ns
- Voltage Supply - Internal:
- 3V ~ 3.6V
- 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)
CY37128VP100-83AXC FAQ
1.How can I place an order for CY37128VP100-83AXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY37128VP100-83AXC 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 CY37128VP100-83AXC reliable?
The price and inventory of CY37128VP100-83AXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY37128VP100-83AXC is usually 5 days.
3.What payment methods are accepted for CY37128VP100-83AXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY37128VP100-83AXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY37128VP100-83AXC?
CY37128VP100-83AXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY37128VP100-83AXC 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 CY37128VP100-83AXC?
For technical support, including CY37128VP100-83AXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY37128VP100-83AXC requirements.
6.How does Aetrix verify that CY37128VP100-83AXC is sourced from the original manufacturer or authorized distributors?
All CY37128VP100-83AXC 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 CY37128VP100-83AXC meets industry standards.
7.What is the process for return or replacement of CY37128VP100-83AXC?
All CY37128VP100-83AXC units undergo pre-shipment inspection (PSI). If there is an issue with CY37128VP100-83AXC, 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 CY37128VP100-83AXC part is unused and in its original packaging.
Return procedure for CY37128VP100-83AXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY37128VP100-83AXC Tags

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