HT24LC02 Datasheet, PDF (1/12 Pages) Holtek Semiconductor Inc – CMOS 2K 2-Wire Serial EEPROM

HT24LC02
CMOS 2K 2-Wire Serial EEPROM
Features
· Operating voltage
- 2.2V~5.5V for temperature 0°C to +70°C
- 2.4V~5.5V for temperature -40°C to +85°C
· Low power consumption
- Operation: 5mA max.
- Standby: 5mA max.
· Internal organization: 256´8
· 2-wire serial interface
· Write cycle time: 5ms max.
· Automatic erase-before-write operation
· Partial page write allowed
· 8-byte Page write modes
· Write operation with built-in timer
· Hardware controlled write protection
· 40-year data retention
· 10⁶ erase/write cycles per word
· Commercial temperature range (-40°C to +85°C)
· 8-pin DIP/SOP/TSSOP package
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
SCL
I/O
C o n tro l
SDA
L o g ic
M e m o ry
WP
C o n tro l
L o g ic
A 0~A 2
VCC
VSS
A d d re s s
C o u n te r
H V P um p
X
D EEPRO M
E A rra y
C
P age B uf
YDEC
S ense A M P
R /W C o n tro l
Pin Assignment
A0 ₁
A1 ₂
A2 ₃
VSS ₄
8 ^VCC
7 ^WP
6 ^SCL
5 ^SDA
H T24LC 02
8 D IP -A /S O P -A /T S S O P -A
Pin Description
Pin Name
I/O
A0~A2
I
SDA
I/O
SCL
I
WP
I
VSS
¾
VCC
¾
Address inputs
Serial data inputs/output
Serial clock data input
Write protect
Negative power supply, ground
Positive power supply
Description
Rev. 1.30
1
June 27, 2007