CAT24WC03_05 Datasheet, PDF (1/14 Pages) Catalyst Semiconductor – 2K/4K-Bit Serial EEPROM with Partial Array Write Protection

CAT24WC03/05
2K/4K-Bit Serial EEPROM with Partial Array Write Protection
FEATURES
s Self-timed write cycle with auto-clear
s 400 kHz I²C bus compatible*
s 1,000,000 Program/Erase cycles
s 1.8 to 5.5 volt operation
s Low power CMOS technology
s Write protect feature
ts ^{–Top 1/2 array protected when WP at VIH}
s 16-Byte page write buffer
r _DESCRIPTION
a _{The CAT24WC03/05 is a 2K/4K-bit Serial CMOS}
P ^{EEPROM internally organized as 256/512 words of 8}
bits each. Catalyst’s advanced CMOS technology sub-
stantially reduces device power requirements. The
s 100 Year data retention
s 8-pin DIP, 8-pin SOIC, 8-lead MSOP and 8-pin
TSSOP Package
s Commercial, industrial and automotive
temperature ranges
s "Green" package options available
CAT24WC03/05 features a 16-byte page write buffer.
The device operates via the I²C bus serial interface, has
a special write protection feature, and is available in 8-
pin DIP or 8-pin SOIC packages.
d _{PIN CONFIGURATION}
e DIP Package (P, L, GL)
SOIC Package (J, W, GW)
BLOCK DIAGRAM
EXTERNAL LOAD
A0 1
u _{A1 2}
A2 3
tin ^{VSS 4}
8 VCC
7 WP
6 SCL
5 SDA
A0
1
A1
2
A2
3
VSS
4
8
VCC
7 _WP
6 _SCL
5 _SDA
VCC
VSS
MSOP Package (R, Z, GZ)
TSSOP Package (U, Y, GY)
A0
1
n _A1
2
A2
3
o VSS
4
8
VCC A0
1
7
WP
A1
2
6
SCL A2
3
5
SDA VSS
4
8
SDA
VCC
7 _WP
6 _SCL
5 _SDA
c ^WP
DOUT
ACK
WORD ADDRESS
BUFFERS
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
START/STOP
LOGIC
CONTROL
LOGIC
XDEC
E²PROM
is ^{PIN FUNCTIONS}
Pin Name
Function
D^{A0, A1, A2 Device Address Inputs}
DATA IN STORAGE
SDA
SCL
Serial Data/Address
Serial Clock
HIGH VOLTAGE/
TIMING CONTROL
WP
Write Protect
V_CC
+1.8V to +5.5V Power Supply
V_SS
Ground
SCL
A0
A1
A2
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I²C Bus Protocol.
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1005, Rev. F