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Catalyst Semiconductor - 1-Kb Microwire Serial EEPROM

Numéro de référence CAT93C46R
Description 1-Kb Microwire Serial EEPROM
Fabricant Catalyst Semiconductor 
Logo Catalyst Semiconductor 





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CAT93C46R fiche technique
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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
8-pad TDFN packages
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 auto-
clear. 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.
PIN CONFIGURATION
PDIP (L)
SOIC (V, X)
TSSOP (Y)
TDFN (VP2)
CS 1
SK 2
DI 3
DO 4
8 VCC
7 NC
6 ORG
5 GND
SOIC (W)
NC 1
VCC
CS
SK
2
3
4
8 ORG
7 GND
6 DO
5 DI
PIN FUNCTIONS
Pin Name
CS
SK
Function
Chip Select
Clock Input
DI Serial Data Input
DO Serial Data Output
VCC
GND
Power Supply
Ground
ORG
NC
Memory Organization
No Connection
Note: When the ORG pin is connected to VCC, 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 pull-up device
will select the x16 organization.
FUNCTIONAL SYMBOL
VCC
ORG
CS
SK
DI
CAT93C46R
GND
DO
For Ordering Information details, see page 12.
* The Green & Gold seal identifies RoHS-compliant packaging, using NiPdAu
pre-plated lead frames.
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1107, Rev. F

PagesPages 13
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