MSM6685 Datasheet, PDF (1/9 Pages) OKI electronic componets – 8,388,608-Word x 1-Bit Serial Register

E2D0037-27-41
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MSM6685
8,388,608-Word x 1-Bit Serial Register
This version: J_Man_S._M19₆9₆8₈₅
Previous version: May. 1997
GENERAL DESCRIPTION
The MSM6685 is a serial register composed of 8,388,608 words x one bit, characterized by medium-
speed, low power consumption operation.
This device has a built-in internal address generation circuit allowing continuous serial read/write
operation by external clock input. Read/write operation causes the internal address to be incremented
automatically by +1.
External address input enables addressing in units of 1024 words. Furthermore, a refresh timer and
a refresh address counter are installed, which makes an external refresh circuit unnecessary. In
addition, this configuration allows lower power consumption.
The device is packaged in 26-pin SOJ having a width of 300 mil.
It is well adapted for storing much data by means of a battery backup. Its combination with OKI's
recording and playback IC enables the easy implementation of a solid recording and playback
system.
FEATURES
• Configuration
: 8,388,608 ¥ 1 bit
• Serial access operation
Serial access time
: 1.5 ms
Serial read/write time
: 2.5 ms
• Low current drain
: 200 mA max. (V_CC = 4 V, at refresh operation, with
data stored and under standard conditions)
• Refresh operation
A self-refresh function is supported.
• Wide range of operating voltage
: Single 3.5 to 5.5 V supply
• Addressing
: In units of 1024 words
• Process
: 0.5 mm double well CMOS process
• Package:
26/20-pin plastic SOJ (SOJ26/20-P-300-1.27) (Product name : MSM6685JS)
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