AT28C17

AT28C17 Features Fast Read Access Time - 150 ns Fast Byte Write - 200 µs or 1 ms Self-Timed Byte Write Cycle Internal Address and Data Latches Internal Control Timer Automatic Clear Before Write Direct Microprocessor Control DATA POLLING READY/BUSY Open Drain Output Low Power 30 mA Active Current 100 µa CMOS Standby Current High Reliability Endurance: 104 or 105 Cycles Data Retention: 10 Years 5V ± 10% Supply CMOS & TTL Compatible Inputs and Outputs JEDEC Approved Byte Wide Pinout Commercial and Industrial Temperature Ranges 16K (2K x 8) CMOS E2PROM Description The AT28C17 is a low-power, high-performance Electrically Erasable and Programmable Read Only Memory with easy to use features. The AT28C17 is a 16K memory organized as 2,048 words by 8 bits. The device is manufactured with Atmel’s reliable nonvolatile CMOS technology. (continued) Pin Configurations Pin Name A0 - A10 CE OE WE I/O0 - I/O7 RDY/BUSY NC DC Function Addresses Chip Enable Output Enable Write Enable AT28C17 Data Inputs/Outputs Ready/Busy Output No Connect Don’t Connect PDIP, SOIC Top View PLCC Top View Note: PLCC package pins 1 and 17 are DON’T CONNECT. 0541A 2-183 Description (Continued) The AT28C17 is accessed like a static RAM for the read or write cycles without the need of external components. During a byte write, the address and data are latched internally, freeing the microprocessor address and data bus for other operations. Following the initiation of a write cycle, th...