¡ Semiconductor

MSM6389C

1/11

GENERAL DESCRIPTION

The MSM6389C is a solid-state recorder data register in 1,048,576 words x 1 bit configuration.

The MSM6389C has a built-in internal address generator circuit allowing continuous serial read/

write operation by single external clock input. The internal address is automatically incremented by

one by read/write operation.

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

address input.

The built-in refresh timer and refresh counter have eliminated the need of an external refresh circuit

and realized a low power consumption.

18-pin plastic QFJ is used as the package and the operating temperature range is between 0

°C and

70

°C.

The MSM6389C 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:

1,048,576 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:

• Wide operating supply voltage range:

Single 3.5 to 5.5V

• Auto-refresh/self-refresh changeable

• Package:

18-pin plastic QFJ (QFJ18-P-R290-1.27) (Product name: MSM6389CJS)

¡ Semiconductor

MSM6389C

1,048,576-Word x 1-Bit Solid-State Recorder Data Register

E2D0033-39-21

This version: Feb. 1999

Previous version: May. 1997