71V3559S80BQI

Memory IC Overview

The IDT71V3559S80BQI is a 4.5 Mbit (256K x 18) synchronous single-data-rate zero-bus-turnaround SRAM manufactured by Renesas Electronics Corporation, formerly IDT. It features an 8 ns access time and operates within a supply voltage range of 3.135 V to 3.465 V. The device utilizes a 165-pin CABGA package measuring 13x15 mm. It supports parallel interface operations with a maximum clock frequency of 125 MHz. The component is rated for industrial operating temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports synchronous single-data-rate operation with zero-bus-turnaround technology for high-speed data transfer
• Provides 4.5 Mbit storage capacity organized as 256K words by 18 bits
• Features low-voltage 3.3V I/O compatibility with 3.3V core operation
• Includes comprehensive control signals for byte writes and chip select management

Memory IC Applications

• High-performance networking equipment requiring fast buffer memory
• Telecommunications systems utilizing synchronous data processing
• Industrial automation controllers needing reliable volatile storage
• Embedded systems demanding compact surface-mount memory solutions

Memory IC Procurement Notes

Verify the manufacturer status as Renesas Electronics Corporation, as IDT was acquired. Confirm the specific suffix BQI corresponds to the 165-CABGA package and industrial temperature grade. Check for end-of-life notifications or product change notices affecting availability. Ensure compatibility with existing PCB footprints for 165-pin CABGA components. Validate moisture sensitivity level requirements during assembly processes.

Memory IC Selection Notes

Select this component when a 4.5 Mbit synchronous SRAM with 8 ns access time is required in a 165-pin BGA package. It is suitable for designs needing 3.3V I/O levels and industrial temperature ranges. Compare against other members of the 71V3559 family for different access speeds or package options. Ensure the system clock frequency does not exceed the device's maximum rating. Consider pinout compatibility if replacing older IDT versions.

Memory IC Part Context

This part belongs to the IDT 71V3559 series of synchronous ZBT SRAMs. The series offers various access times and package configurations to suit different performance and space constraints. The 71V3559S80 variant specifically targets applications requiring 8 ns speed. The series is widely used in high-speed digital systems where fast random access memory is critical for data buffering and processing tasks.

Memory IC Replacement Considerations

Direct substitutes include IDT71V3559SA80BQGI and Renesas 71V3559S80BQGI. Verify package dimensions and pin assignments match exactly. Check for any updates in RoHS compliance or lead-free status. Ensure electrical characteristics such as power consumption and timing parameters are compatible with the original design specifications.