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FM93C66AE 데이터시트(PDF) 1 Page - Fairchild Semiconductor |
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FM93C66AE 데이터시트(HTML) 1 Page - Fairchild Semiconductor |
1 / 13 page 1 www.fairchildsemi.com FM93C66A Rev. B.1 July 2000 © 2000 Fairchild Semiconductor International FM93C66A 4K-Bit Serial CMOS EEPROM (MICROWIRE™ Synchronous Bus) General Description FM93C66A is a 4096-bit CMOS non-volatile EEPROM organized as 256 x 16-bit array. This device features MICROWIRE interface which is a 4-wire serial bus with chipselect (CS), clock (SK), data input (DI) and data output (DO) signals. This interface is compat- ible to many of standard Microcontrollers and Microprocessors. This device offers a pin (ORG), using which, the user can select the format of the data (16-bit or 8-bit). If ORG is tied to GND, then 8-bit format is selected, while if ORG is tied to VCC, then 16-bit format is selected. There are 7 instructions implemented on the FM93C66A for various Read, Write, Erase, and Write Enable/ Disable operations. This device is fabricated using Fairchild Semiconductor floating-gate CMOS process for high reliability, high endurance and low power consumption. “LZ” and “L” versions of FM93C66A offer very low standby current making them suitable for low power applications. This device is offered in both SO and TSSOP packages for small space consid- erations. Functional Diagram Features I Wide V CC 2.7V - 5.5V I User selectable organization x16 (ORG = 1) x8 (ORG = 0) I Typical active current of 200µA 10 µA standby current typical 1 µA standby current typical (L) 0.1 µA standby current typical (LZ) I No Erase instruction required before Write instruction I Self timed write cycle I Device status during programming cycles I 40 year data retention I Endurance: 1,000,000 data changes I Packages available: 8-pin SO, 8-pin DIP, 8-pin TSSOP INSTRUCTION DECODER CONTROL LOGIC AND CLOCK GENERATORS HIGH VOLTAGE GENERATOR AND PROGRAM TIMER INSTRUCTION REGISTER ADDRESS REGISTER EEPROM ARRAY READ/WRITE AMPS DATA IN/OUT REGISTER 16/8 BITS DECODER 16 16 DATA OUT BUFFER CS SK DI ORG DO VSS VCC |
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