HT24LC02A
CMOS 2K 2-Wire Serial EEPROM
Features
·
·
Operating voltage:
Partial page write allowed
1.8V~5.5V for temperature -40°C to +85°C
·
8-byte Page write modes
·
Low power consumption
·
Write operation with built-in timer
-
Operation: 5mA max.
·
Hardware controlled write protection
-
Standby: 2mA max.
·
40-year data retention
106 erase/write cycles per word
·
Internal organization: 256´8
·
·
2-wire serial interface
·
Industrial temperature range (-40°C to +85°C)
·
Write cycle time: 5ms max.
·
Package Types: 8SOP and SOT23-5
·
Automatic erase-before-write operation
General Description
The HT24LC02A 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 opti-
mized for use in many industrial and commercial appli-
cations where low power and low voltage operation are
essential. Up to eight HT24LC02A devices may be con-
nected to the same 2-wire bus. The HT24LC02A is
guaranteed for 1M erase/write cycles and 40-year data
retention.
Selection Table
Standby
Current
@5.0V(mA)
Clock
Rate
(kHz)
Operating
Current
@5.0V(mA)
Write Speed
@2.4V(ms)
VDD
Part No.
Capacity
Package
Marking
SOT23-5
8SOP
2402A
1.8V~
5.5V
HT24LC02A
400
5
5
2
256´8
HT24LC02A
Block Diagram
Pin Assignment
W
P
V
C
C
I
/
O
S
C
L
H
V
P
u
m
5
1
4
C
o
n
t
r
o
l
T
o
p
S
D
A
L
o
g
i
c
N
N
N
C
C
C
V
W
S
S
C
C
V
i
e
w
1
2
3
4
8
7
6
5
2
3
P
X
C
D
L
A
D
E
C
E
E
P
R
O
M
V
S
S
S
C
L
V
S
S
D
S
A
A
r
r
a
y
M
e
m
o
r
y
H
T
2
4
L
C
0
2
A
H
T
2
4
L
C
0
2
A
C
o
n
t
r
o
l
W
P
8
S
O
P
-
A
S
O
T
2
3
-
5
-
A
L
o
g
i
c
P
a
g
e
B
Y
D
E
C
A
d
d
r
e
s
s
S
e
n
s
e
A
M
C
o
u
n
t
e
r
R
/
W
C
o
n
t
V
C
C
V
S
S
Rev. 1.00
1
January 29, 2013