CAT93C56LI-G Datasheet, PDF (1/17 Pages) ON Semiconductor – 2-Kb Microwire Serial CMOS EEPROM

CAT93C56, CAT93C57
2-Kb Microwire Serial
CMOS EEPROM
Description
The CAT93C56/57 is a 2−kb CMOS Serial EEPROM device which
is organized as either 128 registers of 16 bits (ORG pin at V_CC) or 256
registers of 8 bits (ORG pin at GND). Each register can be written (or
read) serially by using the DI (or DO) pin. The CAT93C56/57 features
sequential read and self−timed internal write with auto−clear. On−chip
Power−On Reset circuitry protects the internal logic against powering
up in the wrong state.
Features
• High Speed Operation: 2 MHz
• 1.8 V to 5.5 V Supply Voltage Range
• Selectable x8 or x16 Memory Organization
• Sequential Read
• Software Write Protection
• Power−up Inadvertant Write Protection
• Low Power CMOS Technology
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
• Industrial and Extended Temperature Ranges
• 8−pin PDIP, SOIC, TSSOP and 8−pad TDFN Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
V_CC
ORG
CS
SK
CAT93C56
CAT93C57
DO
DI
GND
Figure 1. Functional Symbol
NOTE: When the ORG pin is connected to V_CC, the x16 organization is selected.
When it is connected to ground, the x8 pin is selected. If the ORG pin is left
unconnected, then an internal pullup device will select the x16 organization.
© Semiconductor Components Industries, LLC, 2009
1
August, 2009 − Rev. 18
http://onsemi.com
SOIC−8
V or W SUFFIX
CASE 751BD
SOIC−8 EIAJ
X SUFFIX
CASE 751BE
TDFN−8
VP2 SUFFIX
CASE 511AK
PDIP−8
L SUFFIX
CASE 646AA
TDFN−8
ZD4 SUFFIX
CASE 511AL
TSSOP−8
Y SUFFIX
CASE 948AL
PIN CONFIGURATIONS
CS
1
SK
DI
DO
V_CC
NC
ORG
GND
PDIP (L), SOIC (V, X),
TSSOP (Y), TDFN (VP2, ZD4*)
NC 1
V_CC
CS
SK
ORG
GND
DO
DI
SOIC (W*)
(Top Views)
* TDFN 3x3 mm (ZD4) and
SOIC (W) rotated pin−out
packages are available for
CAT93C57 and CAT93C56,
Rev. E only (not recommen-
ded for new designs of
CAT93C56)
Pin Name
CS
SK
DI
DO
V_CC
GND
ORG
NC
PIN FUNCTION
Function
Chip Select
Clock Input
Serial Data Input
Serial Data Output
Power Supply
Ground
Memory Organization
No Connection
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
Publication Order Number:
CAT93C56/D