HT93LC46
CMOS 1K 3-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
-
Operating: 5mA max.
-
Standby: 10mA max.
·
User selectable internal organization
-
1K(HT93LC46): 128´8 or 64´16
·
3-wire Serial Interface
·
Write cycle time: 5ms max.
·
Automatic erase-before-write operation
·
Word/chip erase and write operation
·
Write operation with built-in timer
·
Software controlled write protection
·
10-year data retention after 100K rewrite cycles
·
10
6
rewrite cycles per word
·
Industrial temperature range (-40°C to +85°C)
·
8-pin DIP/SOP/TSSOP package
·
Low power consumption
General Description
The HT93LC46 is a 1K-bit low voltage nonvolatile, serial
electrically erasable programmable read only memory de-
vice using the CMOS floating gate process. Its 1024 bits of
memory are organized into 64 words of 16 bits each when
the ORG pin is connected to VCC or organized into 128
words of 8 bits each when it is tied to VSS. The device is
optimized for use in many industrial and commercial appli-
cations where low power and low voltage operation are
essential. By popular microcontroller, the versatile serial
interface including chip select (CS), serial clock (SK), data
input (DI) and data output (DO) can be easily controlled.
Block Diagram
A d d re s s
R e g is te r
V C C
A d d re s s
D e c o d e r
V S S
M e m o r y C e ll
A rra y
1 K : (1 2 8
´
8 o r 6 4
´
1 6 )
C S
S K
O R G
C o n tro l
L o g ic
a n d
C lo c k
G e n e ra te r
D I
D a ta
R e g is te r
O u tp u t
B u ffe r
D O
Pin Assignment
C S
1
8
2
7
3
6
4
5
S K
D I
D O
V C C
N C
O R G
V S S
N C
V C C
C S
S K
4
5
3
6
2
7
1
8
O R G
V S S
D O
D I
H T 9 3 L C 4 6
8 D IP -A /S O P -A /T S S O P -A
H T 9 3 L C 4 6
8 S O P -B
Rev. 1.40
1
March 14, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
