Overview
The 74HCT138PW-Q100118 is a 3-to-8 line decoder/demultiplexer integrated circuit produced by NXP USA Inc. This device is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) input levels. It is widely used in digital circuits for decoding and demultiplexing applications.
The 74HCT138PW-Q100118 features three binary weighted address inputs (A0, A1, and A2) that decode to eight mutually exclusive outputs (Y0 to Y7). The device also includes three enable inputs (E1, E2, and E3), allowing for easy parallel expansion and flexible use in various digital systems.
Key Specifications
| Type Number | VCC (V) | Logic Switching Levels | Output Drive Capability (mA) | tpd (ns) | Power Dissipation Considerations | Tamb (°C) | Package Name |
|---|---|---|---|---|---|---|---|
| 74HCT138PW | 4.5 - 5.5 | TTL | ± 4 | 19 | Low | -40 to +125 | TSSOP16 |
Key Features
- Decoding and Demultiplexing Capability: Decodes three binary weighted address inputs to eight mutually exclusive outputs.
- Multiple Enable Inputs: Features three enable inputs (E1, E2, and E3) for easy parallel expansion and flexible use.
- Wide Supply Voltage Range: Operates from 2.0 to 6.0 V, making it versatile for various applications.
- CMOS Low Power Dissipation: Low power consumption, ideal for energy-efficient designs.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- ESD Protection: Complies with ANSI/ESDA/JEDEC JS-001 class 2 (exceeds 2000 V) and JS-002 class C3 (exceeds 1000 V).
- Temperature Range: Specified from -40 °C to +125 °C.
Applications
- Memory Chip Select Decoding: Ideal for selecting memory chips in digital systems.
- Digital Systems: Used in various digital circuits requiring decoding and demultiplexing functions.
- Embedded Systems: Suitable for use in embedded systems where low power consumption and high reliability are crucial.
- Industrial Control Systems: Applied in industrial control systems for reliable and efficient signal processing.
Q & A
- What is the primary function of the 74HCT138PW-Q100118 IC?
The primary function is to decode three binary weighted address inputs to eight mutually exclusive outputs, and it can also be used as a demultiplexer.
- What are the logic switching levels of the 74HCT138PW-Q100118?
The logic switching levels are TTL (Transistor-Transistor Logic) compatible.
- What is the operating voltage range of the 74HCT138PW-Q100118?
The device operates from 2.0 to 6.0 V.
- What is the output drive capability of the 74HCT138PW-Q100118?
The output drive capability is ± 4 mA.
- What is the propagation delay (tpd) of the 74HCT138PW-Q100118?
The propagation delay is approximately 19 ns.
- What are the temperature specifications for the 74HCT138PW-Q100118?
The device is specified to operate from -40 °C to +125 °C.
- Does the 74HCT138PW-Q100118 have ESD protection?
- What package type is the 74HCT138PW-Q100118 available in?
The device is available in a TSSOP16 package.
- Can the 74HCT138PW-Q100118 be used for memory chip select decoding?
- Is the 74HCT138PW-Q100118 suitable for industrial control systems?
