Overview
The MC74HC157ADTR2G is a quad 2-input data selector/multiplexer produced by onsemi. This device is designed to route two nibbles (A or B) to a single port (Y) based on the Select input. The outputs are presented in noninverted form, and the device includes an Output Enable input that sets all four Y outputs to a low level when high. The MC74HC157ADTR2G is compatible with standard CMOS outputs and, with pull-up resistors, can also interface with LSTTL outputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 2.0 to 6.0 | V |
| DC Input Voltage (VIN) | –0.5 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | –0.5 to VCC + 0.5 | V |
| Operating Free-Air Temperature (TA) | –55 to +125 | °C |
| Input Rise or Fall Time (tr, tf) | 0 to 1000 ns (depending on VCC) | ns |
| Maximum Propagation Delay (tPLH, tPHL) | 18 to 160 ns (depending on VCC and input) | ns |
| Maximum Output Transition Time (tTLH, tTHL) | 13 to 110 ns (depending on VCC) | ns |
| Maximum Input Capacitance (Cin) | 10 | pF |
| Power Dissipation Capacitance (CPD) per Enabled Output | 5.0 | pF |
| Package Type | TSSOP-16 |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Low Input Current: 1 μA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Chip Complexity: 82 FETs or 20.5 Equivalent Gates
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
- AEC-Q100 Qualified and PPAP Capable for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
Applications
The MC74HC157ADTR2G is suitable for a variety of applications where data selection and multiplexing are required. These include:
- Digital Switching Circuits
- Data Routing in Digital Systems
- Automotive Electronics
- Industrial Control Systems
- Communication Equipment
Q & A
- What is the primary function of the MC74HC157ADTR2G?
The primary function is to route two nibbles (A or B) to a single port (Y) based on the Select input.
- What is the operating voltage range of the MC74HC157ADTR2G?
The operating voltage range is from 2.0 to 6.0 volts.
- What types of outputs does the MC74HC157ADTR2G support?
The device supports outputs that directly interface with CMOS, NMOS, and TTL.
- How does the Output Enable input affect the outputs?
A high level on the Output Enable input sets all four Y outputs to a low level.
- Is the MC74HC157ADTR2G RoHS compliant?
- What is the maximum propagation delay for the MC74HC157ADTR2G?
The maximum propagation delay ranges from 18 to 160 ns depending on VCC and input.
- What is the maximum output transition time for the MC74HC157ADTR2G?
The maximum output transition time ranges from 13 to 110 ns depending on VCC.
- What is the package type of the MC74HC157ADTR2G?
The package type is TSSOP-16.
- Is the MC74HC157ADTR2G suitable for automotive applications?
- What is the thermal resistance of the MC74HC157ADTR2G?
The thermal resistance is specified in the data sheet, but it varies based on the specific conditions and package type.
