93C57 Datasheet, PDF (1/9 Pages) Catalyst Semiconductor – 2K-Bit Microwire Serial EEPROM

CAT93C56/57 (Die Rev. E)
2K-Bit Microwire Serial EEPROM
FEATURES
ALOGEN ^FR
LEA _{D F REETM}
I High speed operation: 1MHz
I Low power CMOS technology
I 1.8 to 6.0 volt operation
I Selectable x8 or x16 memory organization
I Self-timed write cycle with auto-clear
I Hardware and software write protection
I Power-up inadvertant write protection
I 1,000,000 Program/erase cycles
I 100 year data retention
I Commercial, industrial and automotive
temperature ranges
I Sequential read
I “Green” package option available
DESCRIPTION
The CAT93C56/57 are 2K-bit Serial EEPROM memory
devices which are configured as either registers of 16
bits (ORG pin at VCC) or 8 bits (ORG pin at GND). Each
register can be written (or read) serially by using the
DI (or DO) pin. The CAT93C56/57 are manufactured
using Catalyst’s advanced CMOS EEPROM floating
gate technology. The devices are designed to endure
1,000,000 program/erase cycles and has a data reten-
tion of 100 years. The devices are available in 8-pin DIP,
8-pin SOIC, 8-pin TSSOP and 8-pad TDFN packages.
PIN CONFIGURATION
DIP Package (P, L)
CS 1
SK 2
DI 3
DO 4
8 VCC
7 NC
6 ORG
5 GND
SOIC Package (J,W)
NC ¹
VCC 2
CS ³
SK ⁴
8 _ORG
7 _GND
6 _DO
5 _DI
SOIC Package (S,V)
CS 1
SK 2
DI 3
DO 4
8 VCC
7 _NC
6 ORG
5 GND
SOIC Package (K,X)
CS 1
SK 2
DI 3
DO 4
8 VCC
7 _NC
6 ORG
5 GND
TSSOP Package (U,Y)
CS ¹
SK 2
DI
3
DO ⁴
8
VCC
7 _NC
6 _ORG
5 _GND
TDFN Package (RD4, ZD4)
VCC ₈
NC 7
ORG 6
GND 5
1 CS
2 SK
3 _DI
4 _DO
Bottom View
FUNCTIONAL SYMBOL
V_CC
ORG
DI
CS
DO
SK
NC
GND
PIN FUNCTIONS
Pin Name
CS
Function
Chip Select
SK
Clock Input
DI
Serial Data Input
DO
Serial Data Output
VCC
GND
+1.8 to 6.0V Power Supply
Ground
ORG
Memory Organization
NC
No Connection
Note: When the ORG pin is connected to VCC, the x16 organiza-
tion 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.
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice.
Doc. No. 1088, Rev. M