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71V2556S - 3.3V Synchronous SRAMs

General Description

The IDT71V2556 is a 3.3V high-speed 4,718,592-bit (4.5 Megabit) synchronous SRAM.

It is designed to eliminate dead bus cycles when turning the bus around between reads and writes, or writes and reads.

Thus, they have been given the name ZBTTM, or Zero Bus Turnaround.

Key Features

  • 128K x 36 memory configurations.
  • Supports high performance system speed - 166 MHz (3.5 ns Clock-to-Data Access).
  • ZBTTM Feature - No dead cycles between write and read cycles.
  • Internally synchronized output buffer enable eliminates the need to control OE.
  • Single R/W (READ/WRITE) control pin.
  • Positive clock-edge triggered address, data, and control signal registers for fully pipelined.

📥 Download Datasheet

Datasheet Details

Part number 71V2556S
Manufacturer Renesas
File Size 300.74 KB
Description 3.3V Synchronous SRAMs
Datasheet download datasheet 71V2556S Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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128K x 36 3.3V Synchronous ZBT™ SRAMs 2.5V I/O, Burst Counter Pipelined Outputs 71V2556S 71V2556SA Features ◆ 128K x 36 memory configurations ◆ Supports high performance system speed - 166 MHz (3.5 ns Clock-to-Data Access) ◆ ZBTTM Feature - No dead cycles between write and read cycles ◆ Internally synchronized output buffer enable eliminates the need to control OE ◆ Single R/W (READ/WRITE) control pin ◆ Positive clock-edge triggered address, data, and control signal registers for fully pipelined applications ◆ 4-word burst capability (interleaved or linear) ◆ Individual byte write (BW1 - BW4) control (May tie active) ◆ Three chip enables for simple depth expansion ◆ 3.3V power supply (±5%), 2.5V I/O Supply (VDDQ) ◆ Optional - Boundary Scan JTAG Interface (IEEE 1149.