DESCRIPTION
This specification covers a range of 4K bit serial EEPROM products, In the text, products are referred to as ST93C66. The 4K bit memory is divided into either 512 x 8 bit bytes or 256 x 16 bit words. The organization may be selected by a signal applied on the ORG input. Table 1. Signal Names S D Chip Select Input Serial Data Input Serial Data Output Serial Clock Organisation Select Supply Voltage Ground VCC D C S ORG ST93C66 ST93C67 Q VSS AI01252B ww.DataSheet4U.com Q C ORG VCC VSS July 1997 This is information on a product still in production bu t not recommended for new de signs. 1/13 4U.com DataSheet 4 U .com 1 MILLION ERASE/WRITE CYCLES, with 40 YEARS DATA RETENTION DUAL ORGANIZATION: 256 x 16 or 512 x 8 BYTE/WORD and ENTIRE MEMORY PROGRAMMING INSTRUCTIONS SELF-TIMED PROGRAMMING CYCLE with AUTO-ERASE READY/BUSY SIGNAL DURING PROGRAMMING SINGLE SUPPLY VOLTAGE: – 4.5V to 5.5V for ST93C66 version – 3V to 5.5V for ST93C67 version SEQUENTIAL READ OPERATION 5ms TYPICAL PROGRAMMING TIME ST93C66 and ST93C67 are replaced by the M93C66 8 1 PSDIP8 (B) 0.4mm Frame 8 1 SO8 (CM) 150mil Width ST93C66, ST93C67 Figure 2A.
STMicroelectronics
