Rainbow Electronics HT24LC08 - Manual

HT24LC08
CMOS 8K 2-Wire Serial EEPROM
Block Diagram Pin Assignment
Pin Description
Pin Name I/O Description
A0~A2 I Address input
SDA I/O Serial data
SCL I Serial clock input
WP I Write protect
VSS ¾ Negative power supply, ground
VCC ¾ Positive power supply
Rev. 1.20 1 November 4, 2002
Features
· Operating voltage: 2.2V~5.5V
· Low power consumption
- Operation: 5mA max.
- Standby: 5 mA max.
· Internal organization: 1024 ´8
· 2-wire Serial Interface
· Write cycle time: 5ms max.
· Automatic erase-before-write operation
· Partial page write allowed
· 16-byte Page Write Mode
· Write operation with built-in timer
· Hardware controlled write protection
· 40-year data retention
· 10
6
rewrite cycles per word
· Commerical temperature range (0 °C to +70°C)
· 8-pin DIP/SOP package
General Description
The HT24LC08 is an 8K-bit serial read/write non-volatile
memory device using the CMOS floating gate process.
Its 8192 bits of memory are organized into 1024 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 two HT24LC08 devices may be connected to the
same 2-wire bus. The HT24LC08 is guaranteed for 1M
erase/write cycles and 40-year data retention.
1
2
3
4 8
7
6
5
H T 2 4 L C 0 8
8 D I P - A / S O P - A
A 0
A 1
A 2
V S S
V C C
W P
S C L
S D A
I / O
C o n t r o l
L o g i c
M e m o r y
C o n t r o l
L o g i c
S C L
S D A
A d d r e s s
C o u n t e r
A 0 ~ A 2
V S S
X
D
E
C
E E P R O M
A r r a y
P a g e B u f f e r
Y D E C
S e n s e A M P
R / W C o n t r o l
H V P u m p
W P
V C C