1-Kb Microwire Serial EEPROM
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CAT93C46R
1-Kb Microwire Serial EEPROM FEATURES
I High speed operation: 4MHz @ 5V, 2MHz @ 1.8V I 1....
Description
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CAT93C46R
1-Kb Microwire Serial EEPROM FEATURES
I High speed operation: 4MHz @ 5V, 2MHz @ 1.8V I 1.8V to 5.5V supply voltage range I Selectable x8 or x16 memory organization I Sequential read I Software write protection I Power-up inadvertent write protection I Low power CMOS technology I 1,000,000 program/erase cycles I 100 year data retention I Industrial temperature range I RoHS-compliant 8-pin PDIP, SOIC, TSSOP and
DESCRIPTION
The CAT93C46R is a 1-Kb CMOS Serial EEPROM device which is organized as either 64 registers of 16 bits or 128 registers of 8 bits, as determined by the state of the ORG pin. The CAT93C46R features sequential read and self-timed internal write with autoclear. On-chip Power-On Reset circuitry protects the internal logic against powering up in the wrong state. In contrast to the CAT93C46, the CAT93C46R features an internal instruction clock counter which provides improved noise immunity for Write/Erase commands.
8-pad TDFN packages
PIN CONFIGURATION
PDIP (L) SOIC (V, X) TSSOP (Y) TDFN (VP2)
CS SK DI DO 1 2 3 4 8 7 6 5 VCC NC ORG GND NC VCC CS SK
FUNCTIONAL SYMBOL
VCC
SOIC (W)
1 2 3 4 8 7 6 5 ORG GND DO DI
ORG CS SK DI CAT93C46R DO
GND
PIN FUNCTIONS
Pin Name CS SK DI DO VCC GND ORG NC Function Chip Select Clock Input Serial Data Input Serial Data Output Power Supply Ground Memory Organization No Connection
For Ordering Information details, see page 12.
Note: When the ORG pin is connected to VCC, the x16 organization is sele...
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