HT24LC02_14 Datasheet, PDF (1/12 Pages) Holtek Semiconductor Inc – CMOS 2K 2-Wire Serial EEPROM

HT24LC02
CMOS 2K 2-Wire Serial EEPROM
Features
• Operating voltage:
1.8V~5.5V for temperature -40°C to +85°C
• Low power consumption
–– Operation: 5mA max.
–– Standby: 3μA 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
• 8-pin DIP/SOP/TSSOPpackage
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
A0~A2
SDA
SCL
WP
VSS
VCC
I/O
Description
I Address inputs
I/O Serial data inputs/output
I Serial clock data input
I Write protect
— Negative power supply, ground
— Positive power supply
Rev. 1.80
1
January 16, 2014