CAT34WC02_05 Datasheet, PDF (1/10 Pages) Catalyst Semiconductor – 2-kb I2C Serial EEPROM, Serial Presence Detect

CAT34WC02
2-kb I²C Serial EEPROM, Serial Presence Detect
FEATURES
s 400 kHz (5 V) and 100 kHz (1.7 V) I²C bus
s 1,000,000 program/erase cycles
compatible
s 100 year data retention
s 1.7 to 5.5 volt operation
s Low power CMOS technology
s 16-byte page write buffer
t ^{s Industrial temperature range}
r ^{s Self-timed write cycle with auto-clear}
s Software write protection for lower 128 bytes
a _DESCRIPTION
P ^{The CAT34WC02 is a 2-kb Serial CMOS EEPROM}
internally organized as 256 words of 8 bits each. Catalyst’s
advanced CMOS technology substantially reduces
device power requirements. The CAT34WC02 features
d _{PIN CONFIGURATION}
e _{TSSOP Package (U, Y, GY)}
u _A0
1
A1
2
tin ^A2
3
VSS
4
8
VCC
7 _WP
6 _SCL
5 _SDA
PIN FUNCTIONS
n _{Pin Name}
Function
o _{A0, A1, A2 Device Address Inputs}
SDA
Serial Data/Address
c _SCL
Serial Clock
is ^WP
Write Protect
V_CC
1.7 V to 5.5 V Power Supply
D^VSS
Ground
s 8-pin TSSOP package
- “Green” package option available
s 256 x 8 memory organization
s Hardware write protect
a 16-byte page write buffer. The device operates via the
I²C bus serial interface and is available in an 8-pin
TSSOP package.
BLOCK DIAGRAM
EXTERNAL LOAD
VCC
VSS
DOUT
ACK
WORD ADDRESS
BUFFERS
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
SDA
START/STOP
LOGIC
XDEC
E²PROM
WP
CONTROL
LOGIC
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
SCL
A0
A1
A2
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I²C Bus Protocol.
24CXX F03
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1003, Rev. O