93LC56A-I/SM MICROCHIP [Microchip Technology], 93LC56A-I/SM Datasheet
93LC56A-I/SM
Related parts for 93LC56A-I/SM
93LC56A-I/SM Summary of contents
Page 1
... GENERATOR DESCRIPTION The Microchip Technology Inc. 93LC56A/B are 2K-bit, low-voltage serial Electrically Erasable PROMs. The device memory is configured as x8 (93LC56A) or x16 bits (93LC56B). Advanced CMOS technology makes these devices ideal for low power nonvolatile memory applications. The 93LC56A/B is available in standard 8-pin DIP, surface mount SOIC, and TSSOP packages ...
Page 2
... ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V ...................................................................................7.0V CC All inputs and outputs w.r.t. Vss ................ -0.6V to Vcc +1.0V 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 ...
Page 3
... RESET status. 2.2 Serial Clock (CLK) The Serial Clock is used to synchronize the communi- cation between a master device and the 93LC56A/B. Opcode, address, and data bits are clocked in on the positive edge of CLK. Data bits are also clocked out on the positive edge of CLK. ...
Page 4
... 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. ...
Page 5
... ERAL cycle is com- CSL plete. T CSL ••• CSL 0 X ••• X Preliminary 93LC56A/B CHECK STATUS BUSY READY HIGH CHECK STATUS BUSY READY HIGH DS21208A-page 5 ...
Page 6
... 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 (93LC56A) or 16-bit (93LC56B) output string. The output data bits will toggle on the rising edge of the CLK and are stable after the specifi ...
Page 7
... WRITE The WRITE instruction is followed by 8 bits (93LC56A bits (93LC56B) of data which are written into the specified address. After the last data bit is put on the DI pin, the falling edge of CS initiates the self-timed auto- erase and programming cycle. The DO pin indicates the READY/BUSY status of the ...
Page 8
... NOTES: DS21208A-page 8 Preliminary 1997 Microchip Technology Inc. ...
Page 9
... NOTES: 1997 Microchip Technology Inc. 93LC56A/B Preliminary DS21208A-page 9 ...
Page 10
... NOTES: DS21208A-page 10 Preliminary 1997 Microchip Technology Inc. ...
Page 11
... PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. 93LC56A/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 ...
Page 12
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: 770-640-0034 ...