Overview
The 74HC238D-Q100J, produced by Nexperia 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 74HC238D-Q100J is part of the 74HC series, known for its CMOS logic and low power dissipation, making it suitable for a wide range of applications, including automotive, industrial, and consumer electronics.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC | 2.0 | 6.0 | V | ||
| VIH (HIGH-level input voltage) | VCC = 2.0 V | 1.5 | 1.2 | 1.5 | V |
| VIL (LOW-level input voltage) | VCC = 2.0 V | 0.5 | 0.8 | V | |
| II (input leakage current) | VI = VCC or GND; VCC = 6.0 V | ±0.1 | ±1.0 | μA | |
| ICC (supply current) | VI = VCC or GND; IO = 0 A; VCC = 6.0 V | 8.0 | 160 | μA | |
| CI (input capacitance) | 3.5 | pF | |||
| tpd (propagation delay) | VCC = 6.0 V | 14 | ns | ||
| Tamb (ambient temperature) | -40 | 125 | °C |
Key Features
- Decoding and Demultiplexing Capability: Decodes three binary weighted address inputs to eight mutually exclusive outputs and can be used as an eight-output demultiplexer.
- Multiple Enable Inputs: Features three enable inputs (E1, E2, and E3) allowing for easy parallel expansion and flexible control.
- Wide Supply Voltage Range: Operates from 2.0 to 6.0 V.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Complies with JEDEC standards for noise immunity.
- ESD Protection: Exceeds 2000 V HBM and 1000 V CDM ESD protection standards.
- Automotive Qualification: Qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1).
- Multiple Package Options: Available in various packages including SO16 and DHVQFN.
Applications
- Automotive Systems: Suitable for use in automotive applications due to its AEC-Q100 qualification.
- Memory Chip Select Decoding: Ideal for memory chip select decoding in various electronic systems.
- Industrial and Consumer Electronics: Used in industrial and consumer electronics for decoding and demultiplexing functions.
- Embedded Systems: Can be integrated into embedded systems requiring decoding and demultiplexing capabilities.
Q & A
- What is the primary function of the 74HC238D-Q100J?
The primary function is to decode three binary weighted address inputs to eight mutually exclusive outputs and to act as an eight-output demultiplexer.
- What is the supply voltage range for the 74HC238D-Q100J?
The supply voltage range is from 2.0 to 6.0 V.
- What are the enable input conditions for the 74HC238D-Q100J?
The outputs will be LOW unless E1 and E2 are LOW and E3 is HIGH.
- What is the propagation delay of the 74HC238D-Q100J?
The propagation delay is approximately 14 ns at VCC = 6.0 V.
- Does the 74HC238D-Q100J have ESD protection?
Yes, it exceeds 2000 V HBM and 1000 V CDM ESD protection standards.
- What are the operating temperature ranges for the 74HC238D-Q100J?
The device operates from -40 °C to +125 °C.
- Is the 74HC238D-Q100J suitable for automotive applications?
Yes, it is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1).
- What are the input levels for the 74HC238D-Q100J?
The input levels are CMOS for the 74HC238 and TTL for the 74HCT238.
- Can the 74HC238D-Q100J be used for memory chip select decoding?
Yes, it is ideal for memory chip select decoding.
- What package options are available for the 74HC238D-Q100J?
It is available in various packages including SO16 and DHVQFN.
