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IS61QDB42M36A - 72Mb QUAD (Burst 4) SYNCHRONOUS SRAM

Download the IS61QDB42M36A datasheet PDF. This datasheet also covers the IS61QDB44M18A variant, as both devices belong to the same 72mb quad (burst 4) synchronous sram family and are provided as variant models within a single manufacturer datasheet.

General Description

AUGUST 2014

2Mx36 and 4Mx18 configuration available.

On-chip Delay-Locked Loop (DLL) for wide data valid window.

Separate independent read and write ports with concurrent read and write operations.

Synchronous pipeline read with late write operation.

Double Data Rate

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Note: The manufacturer provides a single datasheet file (IS61QDB44M18A-ISSI.pdf) that lists specifications for multiple related part numbers.

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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IS61QDB44M18A IS61QDB42M36A 4Mx18, 2Mx36 72Mb QUAD (Burst 4) SYNCHRONOUS SRAM FEATURES DESCRIPTION AUGUST 2014  2Mx36 and 4Mx18 configuration available.  On-chip Delay-Locked Loop (DLL) for wide data valid window.  Separate independent read and write ports with concurrent read and write operations.  Synchronous pipeline read with late write operation.  Double Data Rate (DDR) interface for read and write input ports.  1.5 cycle read latency.  Fixed 4-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 output clocks (C and C#) for data output control.  Two echo clocks (CQ and CQ#) that are delivered simultaneously with data.  +1.8V core power supply and 1.5, 1.