CD54HC157 Series
High Speed CMOS Logic Quad 2-Input Multiplexers
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
High Speed CMOS Logic Quad 2-Input Multiplexers
| Part | Mounting Type | Voltage - Supply [Min] | Voltage - Supply [Max] | Supplier Device Package | Voltage Supply Source | Independent Circuits | Circuit [custom] | Circuit [custom] | Package / Case | Operating Temperature [Min] | Operating Temperature [Max] | Type | Current - Output High, Low |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments CD54HC157F | Through Hole | 2 V | 6 V | 16-CDIP | Single Supply | 1 | 4 | 2:1 | 16-CDIP (0.300", 7.62mm) | -55 °C | 125 °C | Data Selector/Multiplexer | 5.2 mA, 5.2 mA |
Key Features
• Common Select InputsSeparate Enable InputsBuffered inputs and OutputsFanout (Over Temperature Range)Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL LoadsBus Driver Outputs . . . . . . . . . . . . . 15 LSTTL LoadsWide Operating Temperature Range . . . -55°C to 125°CBalanced Propagation Delay and Transition TimesSignificant Power Reduction Compared to LSTTL Logic ICsHC Types2V to 6V OperationHigh Noise Immunity: NIL= 30%, NIH= 30%of VCCat VCC= 5VHCT Types4.5V to 5.5V OperationDirect LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH= 2V (Min)CMOS Input Compatibility, Il1µA at VOL, VOHThe CD54HC158 and CD74HC158 are obsolete and no longer are supplied.Common Select InputsSeparate Enable InputsBuffered inputs and OutputsFanout (Over Temperature Range)Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL LoadsBus Driver Outputs . . . . . . . . . . . . . 15 LSTTL LoadsWide Operating Temperature Range . . . -55°C to 125°CBalanced Propagation Delay and Transition TimesSignificant Power Reduction Compared to LSTTL Logic ICsHC Types2V to 6V OperationHigh Noise Immunity: NIL= 30%, NIH= 30%of VCCat VCC= 5VHCT Types4.5V to 5.5V OperationDirect LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH= 2V (Min)CMOS Input Compatibility, Il1µA at VOL, VOHThe CD54HC158 and CD74HC158 are obsolete and no longer are supplied.
Description
AI
The ’HC157, ’HCT157, ’HC158, and ’HCT158 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 non-inverting 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.
The ’HC157, ’HCT157, ’HC158, and ’HCT158 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 non-inverting 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.