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74HC158

Harris
Part Number 74HC158
Manufacturer Harris
Description High Speed CMOS Logic Quad 2-Input Multiplexers
Published May 28, 2005
Detailed Description S E M I C O N D U C T O R CD74HC157, CD74HCT157, CD74HC158, CD74HCT158 High Speed CMOS Logic Quad 2-Input Multiplexers ...
Datasheet PDF File 74HC158 PDF File

74HC158
74HC158

Overview
S E M I C O N D U C T O R CD74HC157, CD74HCT157, CD74HC158, CD74HCT158 High Speed CMOS Logic Quad 2-Input Multiplexers Description The Harris CD74HC157, CD74HCT157, CD74HC158 and CD74HCT158 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select input (S).
The Enable input (E) is active Low.
When (E) is High, all of the outputs in the 158, the inverting type, (1Y-4Y) are forced High and in the 157, the noninverting type, all of the outputs (1Y-4Y) are forced Low, regardless of all other input conditions.
Moving data from two groups of registers to four common output busses is a common use of these devices.
The state of the Select input determines the particular register from which the data comes.
They can also be used as function generators.
September 1997 Features • Common Select Inputs • Separate Enable Inputs • Buffered inputs and Outputs • Fanout (Over Temperature Range) - Standard Outputs .
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10 LSTTL Loads - Bus Driver Outputs .
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15 LSTTL Loads • Wide Operating Temperature Range .
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-55oC to 125oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTL Logic ICs • HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30%of VCC at VCC = 5V • HCT Types - 4.
5V to 5.
5V Operation - Direct LSTTL Input Logic Compatibility, VIL= 0.
8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH Ordering Information PART NUMBER CD74HC157E CD74HCT157E CD74HC158E CD74HCT158E CD74HC157M TEMP.
RANGE (oC) -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 PACKAGE 16 Ld PDIP 16 Ld PDIP 16 Ld PDIP 16 Ld PDIP 16 Ld SOIC 16 Ld SOIC 16 Ld SOIC PKG.
NO.
E16.
3 E16.
3 E16.
3 E16.
3 M16.
15 M16.
15 M16.
15 Pinout CD74HC157, CD74HCT157, CD74HC158, CD74HCT158 (PDIP, SOIC) TOP VIEW S 1 1I0 2 1I1 3 1Y 4 2I0 5 2I1 6 2Y 7 GND 8 16 VCC 15 E 14 4I0 13 4I1 12 4Y 11 3I0 10 3I1 9 3Y CD74HCT157M ...


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