93C56

Manufacturer Part Number93C56
Description93C562K 128 x 16 or 256 x 8 SERIAL MICROWIRE EEPROM
ManufacturerSTMicroelectronics
93C56 datasheet
 


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M
2K 5.0V Automotive Temperature Microwire
FEATURES
• Single supply 5.0V operation
• Low power CMOS technology
- 1 mA active current (typical)
- 1 A standby current (maximum)
• 256 x 8 bit organization (93C56A)
• 128 x 16 bit organization (93C56B)
• Self-timed ERASE and WRITE cycles (including
auto-erase)
• Automatic ERAL before WRAL
• Power on/off data protection circuitry
• Industry standard 3-wire serial interface
• Device status signal during ERASE/WRITE
cycles
• Sequential READ function
• 100,000 E/W cycles guaranteed
• Data retention > 200 years
• 8-pin PDIP and SOIC packages
• Available for the following temperature ranges:
- Automotive (E):
-40 C to
DESCRIPTION
The Microchip Technology Inc. 93C56A/B is a 2K-bit,
low-voltage serial Electrically Erasable PROM. The
device memory is configured as 256 x 8 bits (93C56A)
or 128 x 16 bits (93C56B). Advanced CMOS technol-
ogy makes this device ideal for low-power, nonvolatile
memory applications. The 93C56A/B is available in
standard 8-pin DIP and surface mount SOIC packages.
This device is only recommeded for 5V automotive
temperature applications. For all commercial and
industrial applications, the 93LC56A/B is recom-
mended.
Microwire is a registered trademark of National Semiconductor.
1998 Microchip Technology Inc.
93C56A/B
PACKAGE TYPE
PDIP
SOIC
CLK
BLOCK DIAGRAM
+125 C
MEMORY
REGISTER
DI
MEMORY
DECODE
LOGIC
CS
CLK
GENERATOR
Preliminary
®
Serial EEPROM
V
CC
CS
1
8
CLK
2
7
NC
DI
3
6
NC
4
5
V
DO
SS
1
8
V
CS
CC
2
7
NC
3
6
DI
NC
4
5
DO
V
SS
ADDRESS
DECODER
ARRAY
ADDRESS
COUNTER
DATA
OUTPUT
BUFFER
V
CC
CLOCK
V
SS
DS21206B-page 1
DO

93C56 Summary of contents