IS61QDB22M18 Datasheet PDF - ISSI QUAD (Burst of 2) Synchronous SRAMs Specs

IS61QDB22M18 - QUAD (Burst of 2) Synchronous SRAMs

This page provides the datasheet information for the IS61QDB22M18, a member of the IS61QDB21M36 QUAD (Burst of 2) Synchronous SRAMs family.

Datasheet Summary

Description

The 36Mb IS61QDB21Mx36 and IS61QDB22Mx18 are synchronous, high-performance CMOS static random access memory (SRAM) devices.

These These SRAMs have separate I/Os, eliminating the need for high-speed bus turnaround.

Features

1M x 36 or 2M x 18.
On-chip delay-locked loop (DLL) for wide data valid window.
Separate read and write ports with concurrent read and write operations.
Synchronous pipeline read with early write operation.
Double data rate (DDR) interface for read and write input ports.
Fixed 2-bit burst for read and write operations.
Clock stop support.
Two input clocks (K and K) for address and control registering at rising edges.

Datasheet Details

Part number	IS61QDB22M18
Manufacturer	ISSI
File Size	645.61 KB
Description	QUAD (Burst of 2) Synchronous SRAMs
Datasheet	IS61QDB22M18 Datasheet
Additional preview pages of the IS61QDB22M18 datasheet.

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Full PDF Text Transcription

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36 Mb (1M x 36. & 2M x 18) QUAD (Burst of 2) Synchronous SRAMs I Features • 1M x 36 or 2M x 18. • On-chip delay-locked loop (DLL) for wide data valid window. • Separate read and write ports with concurrent read and write operations. • Synchronous pipeline read with early write operation. • Double data rate (DDR) interface for read and write input ports. • Fixed 2-bit burst for read and write operations. • Clock stop support. • Two input clocks (K and K) for address and control registering at rising edges only. • Two input clocks (C and C) for data output control. JANUARY 2010 • Two echo clocks (CQ and CQ) that are delivered simultaneously with data. • +1.8V core power supply and 1.5, 1.8V VDDQ, used with 0.75, 0.9V VREF. • HSTL input and output levels.

Published: Jun 10, 2016 |