Overview
The 74HC238N,652, produced by NXP USA Inc., is a 3-to-8 line decoder/demultiplexer integrated circuit. This device decodes three binary weighted address inputs (A0, A1, and A2) to eight mutually exclusive outputs (Y0 to Y7). It features three enable inputs (E1, E2, and E3), allowing for flexible control over the output states. The 74HC238 is part of the 74HC series, known for its CMOS low power dissipation and high noise immunity, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| VCC | 2.0 to 6.0 V | Supply voltage range |
| Logic Switching Levels | CMOS | Logic level for 74HC238 |
| Output Drive Capability | ± 5.2 mA | Maximum output current |
| tpd | 14 ns | Propagation delay |
| Package | 16DIP (Dual In-Line Package) | Package type |
| Tamb | -40 °C to +125 °C | Operating temperature range |
| ESD Protection | HBM: > 2000 V, CDM: > 1000 V | Electrostatic discharge protection levels |
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 flexible control over output states.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Provides high noise immunity, enhancing reliability in noisy environments.
- Wide Supply Voltage Range: Operates over a supply voltage range of 2.0 to 6.0 V.
- ESD Protection: Offers robust electrostatic discharge protection (HBM > 2000 V, CDM > 1000 V).
- Compliance with Standards: Complies with JEDEC standards (JESD8C and JESD7A).
Applications
- Memory Chip Select Decoding: Ideal for decoding memory chip select lines in various memory systems.
- Demultiplexing: Can be used as an eight-output demultiplexer by utilizing one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes.
- Industrial and Automotive Systems: Suitable for use in industrial and automotive applications due to its robust specifications and wide operating temperature range.
- Consumer Electronics: Used in various consumer electronic devices requiring decoding and demultiplexing functions.
Q & A
- What is the primary function of the 74HC238N,652 IC?
The primary function is to decode three binary weighted address inputs to eight mutually exclusive outputs and to act as a demultiplexer.
- What is the supply voltage range for the 74HC238N,652?
The supply voltage range is from 2.0 to 6.0 V.
- What are the logic switching levels for the 74HC238N,652?
The logic switching levels are CMOS for the 74HC238.
- What is the maximum output current of the 74HC238N,652?
The maximum output current is ± 5.2 mA.
- What is the propagation delay of the 74HC238N,652?
The propagation delay is 14 ns.
- What package type is the 74HC238N,652 available in?
The 74HC238N,652 is available in a 16DIP (Dual In-Line Package).
- What is the operating temperature range for the 74HC238N,652?
The operating temperature range is from -40 °C to +125 °C.
- Does the 74HC238N,652 have ESD protection?
Yes, it has robust ESD protection (HBM > 2000 V, CDM > 1000 V).
- What are some common applications of the 74HC238N,652?
Common applications include memory chip select decoding, demultiplexing, and use in industrial, automotive, and consumer electronics.
- Is the 74HC238N,652 compliant with any industry standards?
Yes, it complies with JEDEC standards (JESD8C and JESD7A).
