HT24LC32_14 Datasheet, PDF (1/12 Pages) Holtek Semiconductor Inc – CMOS 32K 2-Wire Serial EEPROM

HT24LC32
CMOS 32K 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: 4096×8
• 2-wire serial interface
• Write cycle time: 5ms max.
• Automatic erase-before-write operation
• Partial page write allowed
• 32-byte Page Write Mode
• Write operation with built-in timer
• Hardware controlled write protection
• 40-year data retention
• 10⁶ rewrite cycles per word
• 8-pin DIP/SOP/TSSOP package
General Description
The HT24LC32 is a 32K-bit 2-wire serial read/write
non-volatile memory device using the CMOS floating
gate process. Its 32768 bits of memory are organized
into 4096 words and 8 bits per word. The device is
optimized for use in many industrial and commercial
applications where low power and low voltage
operation are essential. Up to eight HT24LC32
devices may be connected to the same two-wire bus.
The HT24LC32 has high reliability endurance of 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 32
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
I Serial clock input
I Write protect
— Negative power supply, ground
— Positive power supply
Rev. 1.40
1
January 16, 2014