Xicor X88257
The X88257 is an 32K x 8 E2PROM fabricated with advanced CMOS Textured Poly Floating Gate Technology. The X88257 features a multiplexed address and data bus allowing direct interface to a variety of popular single-chip microcontrollers operating in expanded multiplexed mode without the need for additional interface circuitry. The addresses flow into the device while ALE is HIGH.| Part No. | X88257 |
|---|---|
| Datasheet | X88257 Download |
| Manufacturer |  Xicor |
| Description | E2 Micro-Peripheral |
| Buy | Stock & Price |
DESCRIPTION
32,768 x 8 BitFEATURES
● Multiplexed Address/Data Bus —Direct Interface to Popular 8051 Family● High Performance CMOS —Fast Access Time, 120ns —Low Power —60mA Active Maximum —500µA Standby Maximum
● Software Data Protection
● Toggle Bit Polling —Early End of Write Detection
● Page Mode Write —Allows up to 128 Bytes to be Written in One Write Cycle
● High Reliability —Endurance: 10,000 Write Cycle —Data Retention: 100 Years
● 28-Lead PDIP Package
● 28-Lead SOIC Package
● 32-Lead PLCC Package FUNCTIONAL DIAGRAM CE, CE WR RD PSEN A8–A14 CONTROL LOGIC X D E C O D E SOFTWARE DATA PROTECT ALE L A T C H E S 32K x 8 E2PROM Y DECODE I/O & ADDRESS LATCHES AND BUFFERS A/D0–A/D7 6509 ILL F02.1 © Xicor, Inc. 1994-1997 Patents Pending 6509-1.9 4/9/96 T2/C5/D8 NS 1 Characteristics subject to change without notice X88257 PIN DESCRIPTIONS Address/Data (A/D0–A/D7) Multiplexed low-order addresses and data. After ALE transitions from a HIGH to LOW the addresses are latched. Once the addresses are latched these pins input data or output data depending on RD, WR, PSEN, and CE.
