Overview
The MC74HC139ADR2G is a dual 1-of-4 decoder/demultiplexer produced by onsemi. This device is part of the high-performance silicon-gate CMOS family and is identical in pinout to the LS139. It consists of two independent 1-of-4 decoders, each decoding a two-bit address to one-of-four active-low outputs. The device is designed to facilitate demultiplexing and cascading functions, making it versatile for various digital circuit applications.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| DC Supply Voltage (VCC) | 2.0 | 6.0 | V |
| DC Input Voltage (VIN) | -0.5 | VCC + 0.5 | V |
| DC Output Voltage (VOUT) | -0.5 | VCC + 0.5 | V |
| Input Current (IIN) | -20 | 20 | mA |
| Output Current (IOUT) | -25 | 25 | mA |
| Supply Current (ICC) | -50 | 50 | mA |
| Input Rise and Fall Time | 0 | 1000 (VCC=2.0V), 500 (VCC=4.5V), 400 (VCC=6.0V) | ns |
| Maximum Low-Level Input Voltage | 0.5 (VCC=2.0V), 1.35 (VCC=4.5V), 1.8 (VCC=6.0V) | V | |
| Maximum Quiescent Supply Current | 4 (VCC=2.0V), 40 (VCC=4.5V), 160 (VCC=6.0V) | μA | |
| Propagation Delay (tPLH, tPHL) | 95 (VCC=2.0V), 110 (VCC=4.5V), 120 (VCC=6.0V) | ns | |
| Maximum Input Capacitance | 10 | pF |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1.0 μA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Chip Complexity: 100 FETs or 25 Equivalent Gates
- NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
- Digital Circuit Design: Suitable for decoding and demultiplexing functions in various digital circuits.
- Automotive Systems: Qualified under AEC-Q100 standards, making it suitable for automotive applications.
- Industrial Control Systems: Used in industrial control systems where high noise immunity and reliable operation are crucial.
- Consumer Electronics: Can be used in consumer electronics where low power consumption and high performance are required.
Q & A
- What is the operating voltage range of the MC74HC139ADR2G?
The operating voltage range is from 2.0 to 6.0 V.
- How many decoders does the MC74HC139ADR2G contain?
The device contains two independent 1-of-4 decoders.
- What is the input current of the MC74HC139ADR2G?
The input current is 1.0 μA.
- Is the MC74HC139ADR2G compatible with LSTTL outputs?
Yes, with pull-up resistors, the device inputs are compatible with LSTTL outputs.
- What is the maximum propagation delay of the MC74HC139ADR2G?
The maximum propagation delay is approximately 120 ns at VCC = 6.0 V.
- Is the MC74HC139ADR2G RoHS compliant?
Yes, the device is Pb-Free, Halogen Free/BFR Free and RoHS compliant.
- What are the package options for the MC74HC139ADR2G?
The device is available in SOIC-16 and TSSOP-16 packages.
- What is the maximum output current of the MC74HC139ADR2G?
The maximum output current is ±25 mA.
- Is the MC74HC139ADR2G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable.
- What is the maximum input capacitance of the MC74HC139ADR2G?
The maximum input capacitance is 10 pF.
