CAT93C46R Datasheet, PDF (1/13 Pages) Catalyst Semiconductor – 1-Kb Microwire Serial EEPROM

CAT93C46R
1 kb Microwire Serial
EEPROM
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.
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*
V_CC
ORG
CS
SK
DI
DO
CAT93C46R
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.
http://onsemi.com
PDIP−8
L SUFFIX
CASE 646AA
TSSOP−8
Y SUFFIX
CASE 948AL
SOIC−8
V SUFFIX
CASE 751BD
SOIC−8
X SUFFIX
CASE 751BE
TDFN−8
VP2 SUFFIX
CASE 511AK
PIN CONFIGURATIONS
CS
1
SK
DI
DO
V_CC NC
1
NC V_CC
ORG CS
GND SK
ORG
GND
DO
DI
PDIP (L), SOIC (V, X),
TSSOP (Y),
TDFN (VP2)
(Top Views)
SOIC (W)
PIN FUNCTION
Pin Name
Function
CS
Chip Select
SK
Clock Input
DI
Serial Data Input
DO
Serial Data Output
V_CC
GND
Power Supply
Ground
ORG
Memory Organization
NC
No Connection
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 pull−up device will
select the x16 organization.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
1
October, 2009 − Rev. 7
Publication Order Number:
CAT93C46R/D