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¡ Semiconductor

MSM6586

GENERAL DESCRIPTION

The MSM6586 is a serial register in 262,144 words x 1 bit configuration featuring medium speed

operation with low power consumption.

The MSM6586 has a built-in internal address generator circuit allowing continuous serial read/write

operationbyexternalclockinput. Theinternaladdressisautomaticallyincrementedordecremented

by one by read/write operation. Address increment or decrement can be selected by external input.

Address designation in units of 1024 words in the direction of words is possible by an external serial

address input.

A refresh timer and refresh counter are built in to eliminate the need of the external refresh circuit

and to realize low power consumption.

18-pin plastic QFJ (PLCC) is used as the package and the operating temperature range is between

0

°C and 70°C.

The MSM6586 is suitable for storing large capacity data with battery backup. A solid state recording

and playback system can easily be constructed in combination with OKI’s voice synthesizer ICs.

FEATURES

• Configuration

: 262,144 x 1 bit

• Serial access operation

Serial access time

: 1.5 ms (3.0 ms)

Serial read/write cycle time

: 2.0 ms (4.0 ms)

Fast mode read/write cycle time

: 0.4 ms (0.4 ms)

Times in parentheses indicate ones in self-refresh mode.

• Low current consumption

: 100 mA max.

• Wide operating supply voltage range

: Single 3.5 to 5.5 V

• Auto-refresh/self-refresh changeable

• Package:

18-pin plastic QFJ (PLCC) (QFJ18-P-R290-1.27) (Product name : MSM6586JS)

¡ Semiconductor

MSM6586

262,144-Word x 1-Bit Serial Register

E2D0031-39-21

This version: Feb. 1999

Previous version: May. 1997