AK6420B

ASAHI KASEI [AK6420B/40B/80B] AK6420B / 40B / 80B 2K / 4K / 8Kbit Serial CMOS EEPROM Features † ADVANCED CMOS EEPROM TECHNOLOGY † Wide Vcc (1.8V ∼ 5.5V) operation † AK6420B 2048 bits: 128 Õ 16 organization AK6440B 4096 bits: 256 Õ 16 organization AK6480B 8192 bits: 512 Õ 16 organization † ONE CHIP MICROCOMPUTER INTERFACE - Interface with one chip microcomputer's serial communication port directly † LOW POWER CONSUMPTION - 0.8µA Max (Standby mode) † HIGH RELIABILITY -Endurance -Data Retention : 100K cycles : 10 years † SPECIAL FEATURES - High speed operation ( fMAX=1MHz: Vcc=2.5V ) - Automatic write cycle time-out with auto-ERASE - Automatic address increment (READ) - Software and Hardware controlled write protection † IDEAL FOR LOW DENSITY DATA STORAGE - Low cost, space saving, 8-pin package (MSOP) DAS03E-00 -1- 1999/05 ASAHI KASEI [AK6420B/40B/80B] General Description The AK6420B/40B/80B is a 2048/4096/8192bit, serial, read/write, non-volatile memory device fabricated using an advanced CMOS E2PROM technology. The AK6420B has 2048bits of memory organized into 128 registers of 16 bits each. The AK6440B has 4096bits of memory organized into 256 registers of 16 bits each. The AK6480B has 8192bits of memory organized into 512 registers of 16 bits each. The AK6420B/40B/80B can operate full function under wide operating voltage range from 1.8V to 5.5V. The charge up circuit is integrated for high voltage generation that is used for write operation. The AK6420B/...