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CAT24FC256GXE-1.8TE13 Datasheet

  • CAT24FC256GXE-1.8TE13

  • 256K-Bit I2C Serial CMOS EEPROM

  • 12頁

  • CATALYST

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CAT24FC256
256K-Bit I
2
C Serial CMOS EEPROM
FEATURES
I
Fast mode I
2
C bus compatible*
I
Max clock frequency:
I
Industrial and automotive
temperature ranges
I
5 ms max write cycle time
I
Write protect feature
I
100,000 program/erase cycles
I
100 year data retention
- 400kHz for V
CC
= 1.8 V to 5.5 V
- 1MHz for V
CC
= 2.5 V to 5.5 V
I
Schmitt trigger filtered inputs for noise suppression
I
Low power CMOS technology
I
64-byte page write buffer
I
Self-timed write cycle with auto-clear
鈥?Entire array protected when WP at V
IH
I
8-pin DIP or 8-pin SOIC(JEDEC) and 8-pin SOIC
(EIAJ)
DESCRIPTION
The CAT24FC256 is a 256K-bit Serial CMOS EEPROM
internally organized as 32,768 words of 8 bits each.
Catalyst鈥檚 advanced CMOS technology substantially
reduces device power requirements. The CAT24FC256
features a 64-byte page write buffer. The device oper-
ates via the I
2
C bus serial interface and is available in 8-
pin DIP or 8-pin SOIC packages.
PIN CONFIGURATION
DIP Package (P, L, GL)
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
SOIC Package (J, W, K, X, GW, GX)
A0
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
PIN FUNCTIONS
Pin Name
A0, A1, A2
SDA
SCL
WP
V
CC
V
SS
NC
i
D
A2
VSS
A1
c
s
i
t
n
o
u
n
EXTERNAL LOAD
VCC
VSS
SDA
BLOCK DIAGRAM
d
e
DOUT
ACK
CONTROL
LOGIC
a
P
t
r
SENSE AMPS
SHIFT REGISTERS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
512
START/STOP
LOGIC
XDEC
512
EEPROM
512X512
WP
Function
DATA IN STORAGE
Address Inputs
Serial Data/Address
Serial Clock
Write Protect
+1.8V to +5.5V Power Supply
Ground
A0
A1
A2
SLAVE
ADDRESS
COMPARATORS
SCL
STATE COUNTERS
HIGH VOLTAGE/
TIMING CONTROL
No Connect
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
2
C Bus Protocol.
漏 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1040, Rev. K

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