93C66A MICROCHIP [Microchip Technology], 93C66A Datasheet
93C66A
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93C66A Summary of contents
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... C to DESCRIPTION The Microchip Technology Inc. 93C66A 4K-bit, low-voltage serial Electrically Erasable PROM. The device memory is configured as 512 x 8 bits (93C66A) or 256 x 16 bits (93C66B). Advanced CMOS technology makes this device ideal for low-power, nonvolatile memory applications. The 93C66A/B is available in standard 8-pin DIP and surface mount SOIC packages ...
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... ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* ...................................................................................7. All inputs and outputs w.r.t. ................ -0. Storage temperature .....................................- +150 C Ambient temp. with power applied.................- +125 C Soldering temperature of leads (10 seconds) ............. +300 C ESD protection on all pins................................................4 kV *Notice: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device ...
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... The Serial Clock (CLK) is used to synchronize the com- munication between a master the 93C66A/B. Opcodes, addresses, and data bits are clocked in on the positive edge of CLK. Data bits are also clocked out on the positive edge of CLK. CLK can be stopped anywhere in the transmission sequence (at high or low level) and can be continued ...
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... FUNCTIONAL DESCRIPTION Instructions, addresses, and write data are clocked into the DI pin on the rising edge of the clock (CLK). The DO pin is normally held in a HIGH-Z state except when reading data from the device, or when checking the READY/BUSY status during a programming operation. ...
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... ERAL cycle is com- CSL plete. T CSL ••• CSL 0 X ••• Preliminary 93C66A/B CHECK STATUS BUSY READY HIGH-Z WC CHECK STATUS BUSY READY HIGH-Z EC DS21207B-page 5 ...
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... READ The READ instruction outputs the serial data of the addressed memory location on the DO pin. A dummy zero bit precedes the 8-bit (93C66A) or 16-bit (93C66B) output string. The output data bits will toggle on the rising edge of the CLK and are stable after the specifi ...
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... WRITE The WRITE instruction is followed by 8 bits (93C66A bits (93C66B) of data which are written into the specified address. After the last data bit is clocked into the DI pin the self-timed auto-erase and programming cycle begins. The DO pin indicates the READY/BUSY status of the ...
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... NOTES: DS21207B-page 8 Preliminary 1998 Microchip Technology Inc. ...
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... NOTES: 1998 Microchip Technology Inc. Preliminary 93C66A/B DS21207B-page 9 ...
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... NOTES: DS21207B-page 10 Preliminary 1998 Microchip Technology Inc. ...
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... PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. 93C66A/B /P Package: Temperature Range: Device: Sales and Support Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recom- mended workarounds ...
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M W ORLDWIDE AMERICAS Corporate Office Microchip Technology Inc. 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 602-786-7200 Fax: 602-786-7277 Technical Support: 602 786-7627 Web: http://www.microchip.com Atlanta Microchip Technology Inc. 500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 Tel: ...