Purchase M74HC157, In-stock M74HC157 From SeekIC.
MFG:ST D/C:06+
Part Number: M74HC157
MFG: ST
D/C: 06+
Description: The M54/74HC157 and the M54/74HC158 are high speed CMOS QUAD 2-CHANNEL MULTIPLEXER's fabricated with silicon gate C2MOS...
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M74HC157
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DataSheet
General Description
M74HC157 General Description
The M54/74HC157 and the M54/74HC158 are high speed CMOS QUAD 2-CHANNEL MULTIPLEXER's fabricated with silicon gate C2MOStechnology.
They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.
These devices consist of four 2-input digital multiplexers with 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 M74HC157 and 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 discharge and transient excess voltage.
M74HC157 Maximum Ratings
| Symbol | Parameter | Value | Unit |
| VCC | Supply Voltage | -0.5 to +7 | V |
| VI | DC Input Voltage | -0.5 to VCC + 0.5 | V |
| VO | DC Output Voltage | -0.5 to VCC + 0.5 | V |
| IIK | DC Input Diode Current | ± 20 | mA |
| IOK | DC Output Diode Current | ± 20 | mA |
| IO | DC Output Source Sink Current Per Output Pin | ± 25 | mA |
| ICC or IGND | DC VCC or Ground Current | ± 50 | mA |
| PD | Power Dissipation | 500 (*) | mW |
| Tstg | Storage Temperature | -65 to +150 | |
| TL | Lead Temperature (10 sec) | 300 |
M74HC157 Features
·HIGH SPEED tPD = 10 ns (TYP.) AT VCC = 5 V
·LOWPOWER DISSIPATION ICC = 4 mA (MAX.) AT TA = 25 °C
·HIGH NOISE IMMUNITY VNIH= VNIL= 28%VCC (MIN.)
·OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS
·SYMMETRICAL OUTPUT IMPEDANCE zIOHz = IOL = 4 mA (MIN.)
·BALANCEDPROPAGATION DELAYS tPLH = tPHL
·WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V
·PIN AND FUNCTION COMPATIBLE WITH 54/74LS157/158
·LOWPOWER DISSIPATION ICC = 4 mA (MAX.) AT TA = 25 °C
·HIGH NOISE IMMUNITY VNIH= VNIL= 28%VCC (MIN.)
·OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS
·SYMMETRICAL OUTPUT IMPEDANCE zIOHz = IOL = 4 mA (MIN.)
·BALANCEDPROPAGATION DELAYS tPLH = tPHL
·WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V
·PIN AND FUNCTION COMPATIBLE WITH 54/74LS157/158
M74HC157 Connection Diagram
M74HC157
PDF/DataSheet Download
- Datasheet: M74HC157
- File Size: 256781 KB
- Manufacturer: STMICROELECTRONICS [STMicroelectronics]
- Click here to Download
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