HT24LC02A Datasheet, PDF (1/11 Pages) Holtek Semiconductor Inc – CMOS 2K 2-Wire Serial EEPROM

HT24LC02A
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: 2mA 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
· Industrial temperature range (-40°C to +85°C)
· Package Types: 8SOP and SOT23-5
General Description
The HT24LC02A 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 opti-
mized for use in many industrial and commercial appli-
cations where low power and low voltage operation are
essential. Up to eight HT24LC02A devices may be con-
nected to the same 2-wire bus. The HT24LC02A is
guaranteed for 1M erase/write cycles and 40-year data
retention.
Selection Table
Part No.
Capacity
V_DD
Clock
Rate
(kHz)
Write Speed
@2.4V(ms)
Operating
Current
@5.0V(mA)
Standby
Current
@5.0V(mA)
HT24LC02A
256´8
1.8V~
5.5V
400
5
5
2
Package Marking
SOT23-5
8SOP
2402A
HT24LC02A
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 d d re s s
C o u n te r
VCC
VSS
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
NC ₁
NC ₂
NC ₃
VSS ₄
8 ^VCC
7 ^WP
6 ^SCL
5 ^SDA
H T24LC 02A
8 S O P -A
WP
VCC
5
4
Top
V ie w
1
2
3
SCL VSS SDA
H T24LC 02A
S O T 2 3 -5 -A
Rev. 1.00
1
January 29, 2013