HT24LC02
CMOS 2K 2-Wire Serial EEPROM
Features
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·
Operating voltage:
Partial page write allowed
2.2V~5.5V for temperature -40°C to +85°C
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·
·
·
·
·
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8-byte Page write modes
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Low power consumption
Write operation with built-in timer
Hardware controlled write protection
40-year data retention
106 erase/write cycles per word
Industrial temperature range (-40°C to +85°C)
8-pin DIP/SOP/TSSOP , SOT23-5 package.
-
Operation: 5mA max.
-
Standby: 2mA max.
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·
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Internal organization: 256´8
2-wire serial interface
Write cycle time: 5ms max.
Automatic erase-before-write operation
General Description
The HT24LC02 is a 2K-bit serial read/write non-volatile
memory device using the CMOS floating gate process.
Its 2048 bits of memory are organized into 256 words
and each word is 8 bits. The device is optimized for use
in many industrial and commercial applications where
low power and low voltage operation are essential. Up
to eight HT24LC02 devices may be connected to the
same 2-wire bus. The HT24LC02 is guaranteed for 1M
erase/write cycles and 40-year data retention.
Block Diagram
Pin Assignment
I
/
O
S
C
L
H
V
P
u
m
S
C
L
V
V
P
C
o
n
t
r
o
l
S
D
A
L
o
g
i
c
A
A
A
0
1
2
V
W
S
S
C
C
1
2
3
4
8
7
6
5
5
4
X
D
E
C
P
T
o
p
E
E
P
R
O
M
V
i
e
w
C
D
L
A
3
1
2
A
r
r
a
y
M
e
m
o
r
y
V
S
S
C
o
n
t
r
o
l
W
P
L
o
g
i
c
H
T
2
4
L
C
0
2
S
D
A
V
S
S
V
A
C
C
P
a
g
e
B
8
D
I
P
-
A
/
S
O
P
-
A
/
T
S
S
O
P
-
Y
D
E
C
H
T
2
4
L
C
0
2
S
O
T
2
3
-
5
-
A
A
d
d
r
e
s
s
A
0
~
A
2
S
e
n
s
e
A
M
C
o
u
n
t
e
r
N
o
t
e
:
F
o
r
u
s
e
o
f
S
O
T
2
3
-
5
p
a
R
/
W
C
o
n
t
d
e
v
i
c
e
a
d
d
r
e
s
s
w
o
r
V
C
C
V
S
S
Pin Description
Pin Name
A0~A2
SDA
I/O
I
Description
Address inputs
I/O
I
Serial data inputs/output
Serial clock data input
Write protect
SCL
WP
I
VSS
Negative power supply, ground
Positive power supply
¾
¾
VCC
Rev. 1.70
1
May 6, 2010