CAT24FC32A Datasheet, PDF (1/12 Pages) Catalyst Semiconductor – 32K-Bit Fast Mode I2C Serial CMOS EEPROM

CAT24FC32A
ALOGEN ^FR
32K-Bit Fast Mode I²C Serial CMOS EEPROM
FEATURES
LEA
D
F
R
E
E
TM
■ Fast mode I²C bus compatible*
■ Max clock frequency:
400 kHz for V_CC=1.8V to 3.6V
■ Hardware write protect for entire array
■ Cascadable for up to eight devices
■ 32-Byte page or byte write modes
■ Self-timed write cycle with autoclear
■ 5 ms max write cycle time
■ Random and sequential read modes
■ Schmitt trigger and spike suppression at SDA
and SCL inputs
■ Output slope control to eliminate ground
bounce
■ Zero standby current
■ Commercial temperature range
■ 1,000,000 program/erase cycles
■ 100 years data retention
■ 8-pin PDIP, 8-pin SOIC (150 and 200 mil) and
8-pin TSSOP packages
■ "Green" package options available
DESCRIPTION
The CAT24FC32A is a 32K-bit Serial CMOS EEPROM
internally organized as 4Kx8 bits. The device is
compatible with Fast-mode I²C bus specification and
operates down to 1.8V with a bit rate up to 400 kbit/s.
Extended addressing capability allows up to 8 devices
to share the same bus. Catalyst's advanced CMOS
technology substantially reduces device power
requirements. The device is optimized for high
performance applications, where low power, low voltage
and high speed operation are required.
CAT24FC32A is available in 8-pin DIP, 8-pin SOIC
(JEDEC and EIAJ) and 8-pin TSSOP packages.
PIN CONFIGURATION
DIP Package (P, L)
TSSOP Package (U, Y)
A0 1
A1 2
A2 3
VSS 4
8
7
6
VCC ^A0
WP
A1
A2
SCL _VSS
1
2
3
4
5 SDA
8
VCC
7 _WP
6 _SCL
5 _SDA
BLOCK DIAGRAM
EXTERNAL LOAD
VCC
VSS
DOUT
ACK
WORD ADDRESS
BUFFERS
SDA
START/STOP
LOGIC
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
256
SOIC Package (J,W) (K, X)
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
XDEC 128
EEPROM
128 X 256
CONTROL
WP
LOGIC
DATA IN STORAGE
SCL
A0
A1
A2
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I²C Bus Protocol.
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
HIGH VOLTAGE/
TIMING CONTROL
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1048, Rev. F