CAT24AC128_06 Datasheet, PDF (1/11 Pages) Catalyst Semiconductor – 128kbit I2C Serial CMOS EEPROM With Three Chip Address Input Pins

Not Recommended for New Design,
Replace with CAT24C128
CAT24AC128
ALOGEN ^FR
128kbit I²C Serial CMOS EEPROM With Three Chip Address Input Pins
FEATURES
LEA _{D F REETM}
I 400kHz (2.5V) and 100kHz (1.8V) I²C bus
compatibility
I 1.8 to 5.5 volt operation
I Low power CMOS technology
I Schmitt trigger filtered inputs for noise
suppression
I 64-Byte page write buffer
I Self-timed write cycle with auto-clear
I Commercial, industrial and extended
automotive temperature ranges
I Write protect feature
– Entire array protected when WP at V_IH
I 1,000,000 program/erase cycles
I 100 year data retention
I 8-Pin DIP, 8-Pin SOIC (JEDEC/EIAJ) or
14-pin TSSOP
DESCRIPTION
The CAT24AC128 is a 128kbit Serial CMOS EEPROM
internally organized as 16,384 words of 8 bits each.
Catalyst’s advanced CMOS technology substantially
reduces device power requirements. The CAT24AC128
features a 64-byte page write buffer. The device operates
via the I²C bus serial interface and is available in 8-pin
DIP, 8-pin SOIC or 14-pin TSSOP packages. Three
device address inputs allows up to 8 devices to share a
common 2-wire I²C bus.
PIN CONFIGURATION
DIP Package (P, L) SOIC Package (J, K, W, X)
A0
1
A1 2
A2 3
VSS 4
8 VCC
A0
1
7 WP
A1
2
6 SCL
A2
3
5 SDA VSS 4
8 VCC
7 WP
6 SCL
5 SDA
TSSOP Package (U14, Y14)
A0 ¹
A1
2
NC ³
NC ⁴
NC ⁵
A2 6
VSS 7
14 _{V CC}
13 _WP
12 _NC
11 _NC
10 _NC
9 SCL
8 SDA
BLOCK DIAGRAM
EXTERNAL LOAD
VCC
VSS
DOUT
ACK
WORD ADDRESS
BUFFERS
SDA
START/STOP
LOGIC
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
512
XDEC 256
E²PROM
256X512
CONTROL
WP
LOGIC
PIN FUNCTIONS
Pin Name
Function
SDA
Serial Data/Address
SCL
Serial Clock
WP
Write Protect
V_CC
+1.8V to +5.5V Power Supply
V_SS
Ground
A0 - A2
Device Address Inputs
SCL
STATE COUNTERS
A0
SLAVE
A1
ADDRESS
A2
COMPARATORS
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I²C Bus Protocol.
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1028, Rev. J