MSM6685 Schematic ( PDF Datasheet ) - OKI electronic componets

Teilenummer	MSM6685
Beschreibung	8388608-Word x 1-Bit Serial Register
Hersteller	OKI electronic componets
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Gesamt 9 Seiten E2D0037-27-41 ¡•¡SemicondSucetormiconductor MSM6685 8,388,608-Word x 1-Bit Serial Register This version: JManS.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 operationbyexternalclockinput. Read/writeoperationcausestheinternaladdresstobeincremented 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. (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 TIMING DIAGRAM Read/Write and Read/Modify/Write Cycles MSM6685 6/9 6 Page
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PDF Download	[ MSM6685 Schematic.PDF ]

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