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HT27C512 Datasheet

  • HT27C512

  • CMOS 64K?8-Bit OTP EPROM ??(5V)

  • Holtek

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HT27C512
OTP CMOS 64K
脳
8-Bit EPROM
Features
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Operating voltage: +5.0V
Programming voltage
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V
PP
=12.2V
鹵
0.2V
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V
CC
=5.8V
鹵
0.2V
High-reliability CMOS technology
Latch-up immunity to 100mA from -1.0V to
V
CC
+1.0V
CMOS and TTL compatible I/O
Low power consumption
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Active: 30mA max.
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Standby: 1
碌
A typ.
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64K
脳
8-bit organization
Fast read access time: 70ns, 90ns and 120ns
Fast programming algorithm
Programming time 75
碌
s typ.
Two line control (OE & CE)
Standard product identification code
Package type
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28-pin DIP/SOP
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32-pin PLCC
Commercial temperature range
(0
擄
C to +70
擄
C)
General Description
The HT27C512 chip family is a low-power,
512K bit, +5V electrically one-time programma-
ble (OTP) read-only memories (EPROM). Or-
ganized into 64K words with 8 bits per word, it
features a fast single address location program-
ming, typically at 75
碌
s per byte. Any byte can
be accessed in less than 70ns/90ns with respect
to Spec. This eliminates the need for WAIT
states in high-performance microprocessor sys-
tems. The HT27C512 has separate Output En-
able (OE) and Chip Enable (CE) controls which
eliminate bus contention issues.
Block Diagram
1
6th May 鈥?9

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