Standby: 10mA max.
鈥?/div>
2K(HT93LC56): 256麓8 or 128麓16
3-wire Serial Interface
Write cycle time: 5ms max.
路
路
路
路
路
路
路
路
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
6
10 rewrite cycles per word
Commercial temperature range
(0擄C to +70擄C)
8-pin DIP/SOP package
General Description
The HT93LC56 is a 2K-bit low voltage nonvola-
tile, serial electrically erasable programmable
read only memory device using the CMOS float-
ing gate process. Its 2048 bits of memory are or-
ganized into 128 words of 16 bits each when the
ORG pin is connected to VCC or organized into
256 words of 8 bits each when it is tied to VSS.
The device is optimized for use in many indus-
trial and commercial applications where low
power and low voltage operation are essential. By
popular microcontroller, the versatile serial in-
terface including chip select (CS), serial clock
(SK), data input (DI) and data output (DO) can be
easily controlled.
Block Diagram
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
C S
S K
O R G
D I
D a ta
R e g is te r
M e m o r y C e ll
A rra y
2 K : (2 5 6
麓
8 o r 1 2 8
麓
1 6 )
O u tp u t
B u ffe r
D O
1
December 7, 2000