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參數(shù)資料
| 型號(hào)： | M54HC157 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Quad 2 Channel Multiplexer(四2通道多路復(fù)用器) |
| 中文描述： | 四2通道多路復(fù)用（四2通道多路復(fù)用器） |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大小： | 251K |
| 代理商： | M54HC157 |
M54HC157/158
M74HC157/158
February 1993
HC158 QUAD 2 CHANNEL MULTIPLEXER (INV.)
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
IOH
= 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 54/74LS157/158
HC157 QUAD 2 CHANNEL MULTIPLEXER
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXXB1R
M74HCXXXM1R
M74HCXXXC1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
HC158
HC157
DESCRIPTION
The M54/74HC157 and the M54/74HC158 are high
speed
CMOS
QUAD
PLEXER’s fabricated with silicongate C
2
MOStech-
nology. They achieve the high speed operation
similar to equivalent LSTTL while maintaining the
CMOS low powerdissipation.
These devices consist of four 2-input digital multi-
plexerswith common select and strobe inputs. The
HC158 is an inverting multiplexer while the HC157
is a non-inverting multiplexer. When the STROBE
input is held High, selection of data is inhibited and
all the outputs become Low in the M74HC157and
High in the M74HC158. The SELECT decoding
determines whether the A or B inputs get routed to
their corresponding Y outputs. All inputs are
equipped with protection circuits against static dis-
charge and transient excess voltage.
.
HIGH SPEED
t
PD
= 10 ns(TYP.) AT V
CC
= 5 V
2-CHANNEL
MULTI-
1/11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M54HC157_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RAD-HARD QUAD 2 CHANNEL MULTIPLEXER |
| M54HC157B1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER INV. |
| M54HC157C1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HC158 QUAD 2 CHANNEL MULTIPLEXER INV. HC157 QUAD 2 CHANNEL MULTIPLEXER |
| M54HC157D | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RAD-HARD QUAD 2 CHANNEL MULTIPLEXER |
| M54HC157D1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RAD-HARD QUAD 2 CHANNEL MULTIPLEXER |
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