CAT93C46_07 Datasheet, PDF (1/15 Pages) Catalyst Semiconductor – 1-Kb Microwire Serial EEPROM

CAT93C46
1-Kb Microwire Serial EEPROM
FEATURES
s High speed operation: 2MHz
s 1.8V to 5.5V supply voltage range
s Selectable x8 or x16 memory organization
s Self-timed write cycle with auto-clear
s Software write protection
s Power-up inadvertant write protection
s Low power CMOS technology
s 1,000,000 Program/erase cycles
s 100 year data retention
s Industrial temperature ranges
s RoHS-compliant 8-pin PDIP, SOIC, TSSOP and
8-pad TDFN packages
DESCRIPTION
The CAT93C46 is a 1K-bit Serial EEPROM memory
device which is configured as either 64 registers of 16
bits (ORG pin at VCC) or 128 registers of 8 bits (ORG pin
at GND). Each register can be written (or read) serially
by using the DI (or DO) pin. The CAT93C46 features a
self-timed internal write with auto-clear. On-chip Power-
On Reset circuit protects the internal logic against
powering up in the wrong state.
For Ordering Information details, see page 13.
PIN CONFIGURATION
FUNCTIONAL SYMBOL
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 2
CS 3
SK 4
8 ORG
7 GND
6 DO
5 DI
PIN FUNCTIONS
Pin Name
CS
Function
Chip Select
SK
Clock Input
DI
Serial Data Input
DO
Serial Data Output
VCC
GND
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 organization is
selected. If the ORG pin is left unconnected, then an internal pullup
device will select the x16 organization.
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
ORG
CS
SK
DI
V_CC
CAT93C46
GND
DO
Doc. No. 1106, Rev. F