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MSM6685

OKI electronic componets
Part Number MSM6685
Manufacturer OKI electronic componets
Description 8388608-Word x 1-Bit Serial Register
Published Nov 14, 2005
Detailed Description E2D0037-27-41 ¡ Semiconductor • ¡ Semiconductor MSM6685 8,388,608-Word x 1-Bit Serial Register This version: Jan. 1998...
Datasheet PDF File MSM6685 PDF File

MSM6685
MSM6685

Overview
E2D0037-27-41 ¡ Semiconductor • ¡ Semiconductor MSM6685 8,388,608-Word x 1-Bit Serial Register This version: Jan.
1998 MSM6685 Previous version: May.
1997 GENERAL DESCRIPTION The MSM6685 is a serial register composed of 8,388,608 words x one bit, characterized by mediumspeed, 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 • Serial access operation Serial access time Serial read/write time • Low current drain : 8,388,608 ¥ 1 bit : 1.
5 ms : 2.
5 ms : 200 mA max.
(VCC = 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) 1/9 ¡ Semiconductor MSM6685 BLOCK DIAGRAM Refresh Timer Row Decoder Address Multiplexer Refresh Address Counter 8,388,608 Data Register TAS Row Address Counter Column Decoder SAS I/O Control SAD Row Address Register Column Address Counter Timing Generator DIN DOUT RWSK Write Clock Generator WE 2/9 ¡ Semiconductor MSM6685 PIN CONFIGURATION (TOP VIEW) TEST 1 RWCK 2 NC 3 TEST 4 TEST 5 26 V...


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