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HT27LC4096 Datasheet

  • HT27LC4096

  • CMOS 256K?16-Bit OTP EPROM ??(3.3V)

  • 13頁

  • ETC

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HT27LC4096
CMOS 256K麓16-Bit OTP EPROM
Features
路
Operating voltage: +3.3V
路
Programming voltage
-
V
PP
=12.5V鹵0.2V
-
V
CC
=6.0V鹵0.2V
路
256K麓16-bits organization
路
Fast read access time: 90ns
路
Fast programming algorithm
路
Programming time 75ms typ.
路
Two line controls (OE and CE)
路
Standard product identification code
路
Commercial temperature range (0擄C to +70擄C)
路
40-pin plastic DIP package
路
High-reliability CMOS technology
路
Latch-up immunity to 100mA from -1.0V to
V
CC
+1.0V
路
CMOS and TTL compatible I/O
路
Low power consumption
-
Active: 15mA max.
-
Standby: 1mA typ.
44-pin PLCC package
General Description
The HT27LC4096 chip family is a low-power, 4096K
(4,194,304) bits, +3.3V electrically one-time program-
mable (OTP) read-only memories (EPROM). Organized
into 256K words with 16 bits per word, it features a fast
single address location programming, typically at 75ms
per word. Any word can be accessed in less than 90ns
with respect to spec. This eliminates the need for WAIT
states in high-performance microprocessor systems.
The HT27LC4096 has separate Output Enable (OE)
and Chip Enable (CE) controls which eliminate bus con-
tention issues.
Block Diagram
R o w
A d d re s s
C o lu m n
A d d re s s
X -D e c o d e r
C e ll A r r a y
V C C
Y -D e c o d e r
Y - G a tin g
V S S
V P P
C E
O E
C E & O E &
T E S T
C o n tr o l L o g ic
S A C K T
&
O u tp u t B u ffe r
D Q 0 ~ D Q 1 5
Rev. 1.20
1
November 22, 2002

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