CAT93HC46
1-kb High Speed Microwire Serial EEPROM
FEATURES
s
High speed operation: 4 MHz @ 5.0 V
s
1.8 to 5.5 volt operation
s
Selectable x8 or x16 word organization
s
Sequential Read
s
Software write protection
s
Power-up inadvertent write protection
s
Low power CMOS technology
s
1,000,000 program/erase cycles
s
100 year data retention
H
GEN
FR
ALO
EE
LE
A
D
F
R
E
E
TM
s
Industrial and extended temperature ranges
s
8-Lead PDIP, SOIC, MSOP and TSSOP
packages
DESCRIPTION
The CAT93HC46 is a 1-kb Serial EEPROM memory
device which is configured as registers of either 16 bits
(ORG pin at V
CC
) or 8 bits (ORG pin at GND). Each
register can be written (or read) serially by using the DI
(or DO) pin. The CAT93HC46 is manufactured using
Catalyst’s advanced CMOS EEPROM floating gate
technology. The device is designed to endure 1,000,000
program/erase cycles and has a data retention of 100
years. The CAT93HC46 is available in 8-pin DIP, SOIC,
MSOP or TSSOP packages.
PIN CONFIGURATION
DIP Package (P, L)
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
NC
ORG
GND
FUNCTIONAL SYMBOL
VCC
SOIC Package (J, W)
NC
VCC
CS
SK
1
2
3
4
8
7
6
5
ORG
GND
DO
DI
ORG
DI
CAT93HC46
SK
DO
SOIC Package (S, V) MSOP Package (R, Z)
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
NC
ORG
GND
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
NC
ORG
GND
CS
VSS
PIN FUNCTIONS
TSSOP Package (U, Y)
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
NC
ORG
GND
Pin Name
CS
SK
DI
DO
V
CC
Function
Chip Select
Clock Input
Serial Data Input
Serial Data Output
1.8 to 5.5 V Power Supply
Ground
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 pullup device will select the X16
organization.
GND
ORG
NC
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1008,Rev. G
CATALYST [ CATALYST SEMICONDUCTOR ]
