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HCF4724B 数据表(PDF) 1 Page - STMicroelectronics

部件名 HCF4724B
功能描述  8 BIT ADDRESSABLE LATCH
Download  14 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

HCF4724B 数据表(HTML) 1 Page - STMicroelectronics

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HCC4724B
HCF4724B
September 1988
8 BIT ADDRESSABLE LATCH
EY
(Plastic Package)
DESCRIPTION
ORDER CODES :
HCC4724BF
HCF4724BM1
HCF4724BEY
HCF4724BC1
F
(Ceramic Package)
M1
(Micro Package)
C1
(Chip Carrier)
PIN CONNECTIONS
The HCC/HCF4724B 8-bit addressable latch is a
serial-input, parallel-output storage register that can
perform a variety of functions.
Data are inputted to a particular bit in the latch when
that bit is addressed (by means of inputs A0, A1, A2)
and when WRITE DISABLE is at low level. When
WRITE DISABLE is high, data entry is inhibited
however, all 8 outputs can be continuously read in-
dependent of WRITE DISABLE and address inputs.
A master RESET input is available, which resets all
bits to a logic ” 0 ” level when RESET and WRITE
DISABLE are at a high level. When RESET is at a
high level, and WRITE DISABLE is at a low level, the
latch acts as a 1-of-8 demultiplexer ; the bit that is
addressed has an active output which follows the
data input, while all unaddressed bits are held to a
logic ” 0 ” level.
.
SERIAL DATA INPUT - ACTIVE PARALLEL
OUTPUT
.
STORAGE REGISTER CAPABILITY - MASTER
CLEAR
.
CAN FUNCTION AS DEMULTIPLEXER
.
STANDARDIZED, SYMMETRICAL OUTPUT
CHARACTER
.
100% TESTED FOR QUIESCENT CURRENT
AT 20V
.
MAXIMUM INPUT CURRENT OF 1
µA AT 18V
(full package-temperature range), 100nA AT 18V
AND 25
oC
.
NOISE MARGIN
(full package-temperature
range) = 1V AT VDD = 5V, 2V AT VDD = 10V, 2.5V
AT VDD = 15V
.
5V, 10V, AND 15V PARAMETRIC RATINGS
.
MEETS ALL REQUIREMENTS OF JEDEC TEN-
TATIVE STANDARD N. 13A, ” STANDARD
SPECIFICATIONS FOR DESCRIPTION OF ’ B
’ SERIES CMOS DEVICES ”
APPLICATION
.
MULTI-LINE DECODERS
.
A/D CONVERTERS
1/14


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