CAT93C66_15 Datasheet, PDF (1/13 Pages) ON Semiconductor – 4 kb Microwire Serial CMOS EEPROM

CAT93C66, CAT93W66
4 kb Microwire Serial CMOS
EEPROM
Description
The CAT93C66 is a 4 kb CMOS Serial EEPROM device which is
organized as either 256 registers of 16 bits (ORG pin at V_CC) or 512
registers of 8 bits (ORG pin at GND). The CAT93W66 features x16
memory organization only. Each register can be written (or read)
serially by using the DI (or DO) pin. The device 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.
Features
• High Speed Operation: 2 MHz
• 1.8 V to 5.5 V Supply Voltage Range
• Selectable x8 or x16 Memory Organization: CAT93C66
• Sequential Read
• Software Write Protection
• Power−up Inadvertent Write Protection
• Low Power CMOS Technology
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
• Industrial and Extended Temperature Ranges
• 8−lead PDIP, SOIC, TSSOP and 8−pad TDFN Packages
• These Devices are Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
V_CC
V_CC
ORG
CS
CS
CAT93C66
DO ^SK
CAT93W66
DO
SK
DI
DI
GND
GND
Figure 1. Functional Symbols
CAT93C66 Selectable Organization:
When the ORG pin is connected to V_CC, 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 pull−up
device will select the x16 organization.
CAT93W66*:
The device works in x16 mode only.
*Not recommended for new designs
www.onsemi.com
SOIC−8
V SUFFIX
CASE 751BD
TDFN−8
VP2 SUFFIX
CASE 511AK
PDIP−8
L SUFFIX
CASE 646AA
TSSOP−8
Y SUFFIX
CASE 948AL
SOIC−8
X SUFFIX
CASE 751BE
PIN CONFIGURATION
(Top View)
CS 1
SK 2
DI 3
DO 4
8 V_CC
7 NC
6 ORG
5 GND
PDIP (L), SOIC (V, X),
TSSOP (Y),
TDFN (VP2)
CS 1
SK 2
DI 3
DO 4
8 V_CC
7 NC
6 NC
5 GND
TDFN (VP2)
CAT93W66*
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
August, 2015 − Rev. 13
Publication Order Number:
CAT93C66/D