CY7C1381KVE33-133AXI

Memory IC Overview

The CY7C1381KVE33-133AXI is an 18-Mbit (512K × 36) synchronous flow-through SRAM with ECC, manufactured by Infineon Technologies. It supports 133 MHz bus operations with a maximum access time of 6.5 ns. The device features a 3.3 V core supply and 2.5 V or 3.3 V I/O supply. It includes on-chip error correction code to reduce soft error rate, user-selectable burst counter for interleaved or linear sequences, and separate processor and controller address strobes. The component operates within a temperature range of -40°C to 85°C and is housed in a 100-pin TQFP package.

Memory IC Feature Summary

• On-chip error correction code (ECC) reduces soft error rate
• User selectable burst counter supporting interleaved or linear burst sequences
• Separate processor and controller address strobes for flexible interface control
• Synchronous self-timed write simplifies byte write operations

Memory IC Applications

• Secondary cache systems using linear or interleaved burst sequences
• High-speed microprocessor interfaces requiring minimum glue logic
• Systems utilizing IEEE 1149.1 JTAG-compatible boundary scan testing

Memory IC Procurement Notes

Verify the manufacturer designation as Infineon Technologies, reflecting the acquisition of Cypress Semiconductor. Confirm the specific suffix 'KVE33' indicates the Pb-free 100-pin TQFP package variant. Ensure the ordering code matches the exact speed grade and pin configuration required for the target design to avoid compatibility issues with legacy Cypress-branded documentation.

Memory IC Selection Notes

Select this component when a 512K x 36 organization with integrated ECC is required for high-performance applications. The 133 MHz speed grade provides a 6.5 ns access time suitable for fast system buses. Consider the dual voltage capability (3.3 V core, 2.5/3.3 V I/O) for power management flexibility. Verify that the 100-pin TQFP package fits the PCB layout constraints and thermal requirements of the assembly process.

Memory IC Part Context

This part belongs to the CY7C1381KV series of 18-Mbit synchronous flow-through SRAMs. It shares architectural similarities with the CY7C1381KV33 but differs in packaging and environmental compliance. The series is designed to interface directly with high-speed processors, offering common I/O options and advanced burst control features typical of enterprise-grade memory solutions from the Cypress/Infineon portfolio.

Memory IC Replacement Considerations

CY7C1381KV33-133AXI