1kb Microwire Serial EEPROM
Description
CAT93C46R
EEPROM Serial 1-Kb Microwire
Description The CAT93C46R is a 1−Kb Microwire 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.
Features
• High Speed Operation: 4 MHz @ 5 V, 2 MHz @ 1.
8 V • 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 Temperature Range • 8−pin PDIP, SOIC, TSSOP and 8−pad TDFN Packages • This Device is Pb−Free, Halogen Free/BFR Free and RoHS
Compliant*
VCC
ORG CS SK DI
CAT93C46R
DO
GND Figure 1.
Functional Symbol
*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2013
May, 2018 − Rev.
10
1
www.
onsemi.
com
PDIP−8 L SUFFIX CASE 646AA
TSSOP−8 Y SUFFIX CASE 948AL
SOIC−8 V SUFFIX CASE 751BD
TDFN−8** VP2 SUFFIX CASE 511AK
PIN CONFIGURATION
CS 1 SK
DI DO
VCC NC
ORG GND
PDIP (L), SOIC (V), TSSOP (Y), TDFN (VP2)**
(Top View) ** Not recommended for new designs
PIN FUNCTION
Pin Name
Function
CS Chip Select
SK Clock Input
DI Serial Data Input
DO VCC GND
Serial Data Output Power Supply Ground
ORG
Memory Organization
NC 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 pul...
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