HT24LC128 Datasheet, PDF (1/12 Pages) Holtek Semiconductor Inc – CMOS 128K 2-Wire Serial EEPROM

HT24LC128
CMOS 128K 2-Wire Serial EEPROM
Features
• Operating voltage:
2.2V~5.5V for temperature -40˚C to +85˚C
• Memory Capacity: 128K (16K×8)
• 2-wire I²C serial interface
• Write cycle time: 5ms max.
• Automatic erase-before-write operation
• Partial page write allowed
• 64-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/TSSOP package
Description
The HT24LC128 device is a 128K-bit 2-wire serial
read/write non-volatile memory device manufactured
using a CMOS floating gate process. Its 128K bits of
memory are organized into 16K 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 HT24LC128 devices may be connected to the
same two-wire bus. The HT24LC128 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 a g e B u ffe r
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 128
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
Type
I
I/O
I
I
PWR
PWR
Description
Address inputs
Serial data
Serial clock input
Write protect
Negative power supply, ground
Positive power supply
Rev. 1.10
1
March 12, 2015