參數(shù)資料
型號： M74HC298M1R
廠商： 意法半導體
英文描述： QUAD 2 CHANNEL MULTIPLEXER/REGISTER
中文描述： 四通道多2 /注冊
文件頁數(shù)： 1/11頁
文件大小： 248K
代理商： M74HC298M1R
M54HC298
M74HC298
October 1992
QUAD 2 CHANNEL MULTIPLEXER/REGISTER
LOWPOWER DISSIPATION
I
CC
= 4
μ
A(MAX.) AT T
A
= 25
°
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OH
= I
OL
= 4 mA (MIN.)
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO6 V
.
PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS298
B1R
(Plastic Package)
ORDER CODES :
M54HC298F1R
M74HC298B1R
M74HC298M1R
M74HC298C1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
.
HIGH SPEED
f
MAX
= 73 MHz (typ.) AT V
CC
= 5 V
DESCRIPTION
The M54/74HC298 isa high speed CMOSQUAD2-
CHANNEL MULTIPLEXER/REGISTER fabricated
in silicon gate C
2
MOS technology.
It has the same high speed performance of LSTTL
combined with true CMOS low power consumption.
These circuits are controlled by the signals WORD
SELECT and CLOCK. When the WORD SELECT
input is taken low Word 1 (A1, B1, C1 and D1) is
presented to the input of the flip-flops, and when
WORDSELECT ishighWord 2(A2, B2,C2 andD2)
is presented totheinputs of theflip-flops.The select
word is clocked tothe output terminals on the nega-
tive edge of theclock pulse. All inputs are equipped
with protection circuits against static discharge and
transient excess voltage.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
1/11
相關PDF資料
PDF描述
M74HC298C1R 12-Bit, 2.5 us Dual DAC, Serial Input, Pgrmable Settling Time, Q temp available 8-PDIP -40 to 85
M74HC298 12-Bit, 2.5 us Dual DAC, Serial Input, Pgrmable Settling Time, Q temp available 8-SOIC -40 to 85
M74HC299C1R HC323 8BITPIPOSHIFTREGISTERWITHSYNCHRONOUS CLEAR HC299 8BITPIPOSHIFTREGISTERWITHASYNCHRONOUS CLEAR
M74HC299 12-Bit, 2.5 us Dual DAC, Serial Input, Pgrmable Settling Time, Q temp available 8-SOIC -40 to 125
M74HC299F1R HC323 8BITPIPOSHIFTREGISTERWITHSYNCHRONOUS CLEAR HC299 8BITPIPOSHIFTREGISTERWITHASYNCHRONOUS CLEAR
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參數(shù)描述
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