CAT64LC40 Datasheet, PDF (1/12 Pages) ON Semiconductor – 4 kb SPI Serial EEPROM

CAT64LC40
4 kb SPI Serial EEPROM
Description
The CAT64LC40 is a 4 kb Serial EEPROM which is configured as
256 registers by 16 bits. Each register can be written (or read) serially
by using the DI (or DO) pin. The CAT64LC40 is manufactured using
ON Semiconductor’s advanced CMOS EEPROM floating gate
technology. It is designed to endure 1,000,000 program/erase cycles
and has a data retention of 100 years. The device is available in 8−pin
DIP, SOIC and TSSOP packages.
Features
• SPI Bus Compatible
• Low Power CMOS Technology
• 2.5 V to 6.0 V Operation
• Self−Timed Write Cycle with Auto−Clear
• Hardware Reset Pin
• Hardware and Software Write Protection
• Commercial, Industrial and Automotive Temperature Ranges
• Power−up Inadvertent Write Protection
• RDY/BSY Pin for End−of−Write Indication
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
• This Device is Pb−Free, Halogen Free/BFR Free and RoHS
Compliant*
V_CC
GND
MEMORY ARRAY
256 x 16
ADDRESS
DECODER
DI
RESET
CS
DATA
REGISTER
MODE DECODE
LOGIC
OUTPUT
BUFFER
CLOCK
SK
GENERATOR
DO _RDY/BUSY
Figure 1. Block Diagram
*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
P, L SUFFIX
CASE 646AA
SOIC−8
J, W, S, V SUFFIX
CASE 751BD
TSSOP−8
U, Y SUFFIX
CASE 948AL
PIN FUNCTION
Pin Name
CS
Function
Chip Select
SK
Clock Input
DI
Serial Data Input
DO
Serial Data Output
V_CC
GND
RESET
+2.5 V to +6.0 V Power Supply
Ground
Reset
RDY/BUSY
Ready/BUSY Status
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
1
September, 2009 − Rev. 4
Publication Order Number:
CAT64LC40/D