파트넘버.co.kr M74HC154 데이터시트 PDF


M74HC154 반도체 회로 부품 판매점

4 TO 16 LINE DECODER/DEMULTIPLEXER



ST Microelectronics 로고
ST Microelectronics
M74HC154 데이터시트, 핀배열, 회로
M74HC154
4 TO 16 LINE DECODER/DEMULTIPLEXER
. HIGH SPEED
. tPD = 15 ns (TYP.) at VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) at TA = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
IOH= IOL = 4 mA (MIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V to 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS154
B1R
(Plastic Package)
M1R
(Micro Package)
ORDER CODES :
M 74HC 15 4B 1R
M 74H C1 54 M1 R
PIN CONNECTIONS (top view)
DESCRIPTION
The 74HC154 is a high speed CMOS 4 TO 16-LINE
DECODER/DEMULTIPLEXER fabricated in silicon
gate C2MOS technology. It has the same high speed
performance of LSTTL combined with true CMOS low
power consumption.
A binary code applied to the four inputs (A to D) pro-
vides a low level at the selected one of sixteen outputs
excluding the other fifteen outputs, when both the
strobe inputs, G1 and G2, are held low. When either
strobe input is held high, the decording function is in-
hibited to keep all outputs high. The strobe function
makes it easy to expand the decoding lines through
cascading, and simplifies the design of address de-
coding circuits in memory control systems.
All inputs are equipped with protection circuits against
static discharge and transient excess voltage.
NC =
No Internal
Connection
October 1993
1/8


M74HC154 데이터시트, 핀배열, 회로
M74HC154
TRUTH TABLE
INPUTS
G1 G2
D
C
B
A
LLLLLL
L LL L LH
L L L LHL
L L L LHH
L LLHL L
L LLHLH
L L L HH L
L L L HHH
L LHL L L
L LHL LH
L LHLHL
L LHLHH
L LHHL L
L LHHLH
L L HHH L
L L HHHH
XHXXXX
HXXXXX
X: Don’t Care
LOGIC DIAGRAM
SELECTED
OUTPUT (L)
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
Y10
Y11
Y12
Y13
Y14
Y15
NONE
NONE
2/8




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M74HC154 multiplexer

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