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HT93LC66-8SOP-A Datasheet

  • HT93LC66-8SOP-A

  • EEPROM

  • 7頁

  • ETC

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HT93LC66
CMOS 4K 3-Wire Serial EEPROM
Features
路
Operating voltage V
CC
-
Read: 2.0V~5.5V
-
Write: 2.4V~5.5V
路
Automatic erase-before-write operation
路
Word/chip erase and write operation
路
Write operation with built-in timer
路
Software controlled write protection
路
10-year data retention after 100K rewrite cycles
路
10
6
rewrite cycles per word
路
8-pin DIP/SOP package
路
Commercial temperature range (0擄C to +70擄C)
路
Low power consumption
-
Operating: 5mA max.
-
Standby: 10mA max.
路
User selectable internal organization
路
3-wire Serial Interface
-
4K(HT93LC66): 512麓8 or 256麓16
路
Write cycle time: 5ms max.
General Description
The HT93LC66 is a 4K-bit low voltage nonvolatile, serial
electrically erasable programmable read only memory de-
vice using the CMOS floating gate process. Its 4096 bits of
memory are organized into 256 words of 16 bits each
when the ORG pin is connected to VCC or organized into
512 words of 8 bits each when it is tied to VSS. The device
is optimized for use in many industrial and commercial ap-
plications 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
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 to r
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
D I
D a ta
R e g is te r
M e m o r y C e ll
A rra y
4 K : (5 1 2
麓
8 o r 2 5 6
麓
1 6 )
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
1
8
2
7
3
6
4
5
V C C
C S
S K
O R G
V S S
D O
D I
H T 9 3 L C 6 6
8 D IP -A /S O P -A
H T 9 3 L C 6 6
8 S O P -B
Rev. 1.20
1
October 29, 2001

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