HT23C512 반도체 회로 부품 판매점
CMOS 64Kx 8-Bit Mask ROM
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 Holtek Semiconductor Inc |
HT23C512
CMOS 64K×8-Bit Mask ROM
Features
• Operating voltage: 2.7V~5.5V
• Low power consumption
– Operation: 25mA Max. (VCC=5V)
10mA Max. (VCC=3V)
– Standby: 30µA Max. (VCC=5V)
10µA Max. (VCC=3V)
• Access time:150ns Max. (VCC=5V)
250ns Max. (VCC=3V)
• 65536×8 bits of mask ROM
• Mask options: chip enable CE/CE/OE1/OE1
and output enable OE/OE/NC
• TTL compatible inputs and outputs
• Tristate outputs
• Fully static operation
• Package type: 28-pin DIP/SOP
General Description
The HT23C512 is a read-only memory with high
performance CMOS storage device whose 512K
of memory is arranged into 65536 words by 8
bits.
For application flexibility, the chip enable and
output enable control pins can be selected as
active high or active low. This flexibility not only
allows easy interface with most microproces-
sors, but also eliminates bus contention in mul-
tiple bus microprocessor systems. An additional
feature of the HT23C512 is its ability to enter
the standby mode whenever the chip enable
(CE/CE) is inactive, thus reducing current con-
sumption to below 30µA. The combination of
these functions makes the chip suitable for high
density low power memory applications.
Block Diagram
1 24th Aug ’98
Pin Assignment
HT23C512
Pin Description
Pin Name
A0~A15
D0~D7
CE/CE/OE1/OE1
OE/OE/NC
VSS
VDD
I/O Description
I Address inputs
O Data outputs
I Chip enable/Output enable input
I Output enable input
I Negative power supply
I Positive power supply
Operation Truth Table
Mode
Read
Deselect
Standby
CE/CE
H/L
H/L
L/H
Note: H=VIH, L=VIL, X=VIH or VIL
OE/OE
H/L
L/H
X
A0~A15
Valid
X
X
D0~D7
Data Out
High Z
High Z
2 24th Aug ’98
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제조업체: Holtek Semiconductor Inc
( holtek )
HT23C512 cmos
데이터시트 다운로드 :
[ HT23C512.PDF ]
[ HT23C512 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
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