Overview
The 74HC238D-Q100118 is a 3-to-8 line decoder/demultiplexer IC produced by NXP USA Inc. (now part of Nexperia). 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 easy parallel expansion and demultiplexing capabilities. The 74HC238D-Q100118 is part of the 74HC/HCT family, known for its high-speed Si-gate CMOS technology and low power dissipation.
Key Specifications
| Type Number | VCC (V) | Logic Switching Levels | Output Drive Capability (mA) | tpd (ns) | Power Dissipation Considerations | Tamb (°C) | Rth(j-a) (K/W) |
|---|---|---|---|---|---|---|---|
| 74HC238D | 2.0 - 6.0 | CMOS | ± 5.2 | 14 | Low | -40 to +125 | 93 |
Key Features
- Decodes three binary weighted address inputs to eight mutually exclusive outputs
- Three enable inputs (E1, E2, and E3) for easy parallel expansion and demultiplexing
- Wide supply voltage range from 2.0 to 6.0 V
- CMOS low power dissipation
- High noise immunity
- Ideal for memory chip select decoding
- Active HIGH mutually exclusive outputs
- Complies with JEDEC standards (JESD8C and JESD7A)
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V
- Multiple package options, including SO16 (SOT109-1)
- Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Applications
The 74HC238D-Q100118 is suitable for a variety of applications across different industries, including:
- Automotive systems, complying with AEC-Q100 standards
- Industrial control systems
- Memory chip select decoding
- Demultiplexing in digital circuits
- Consumer electronics
- Computing and power management systems
Q & A
- What is the primary function of the 74HC238D-Q100118 IC?
The primary function is to decode three binary weighted address inputs to eight mutually exclusive outputs.
- What are the enable inputs used for in the 74HC238D-Q100118?
The three enable inputs (E1, E2, and E3) allow for easy parallel expansion and demultiplexing capabilities.
- What is the supply voltage range for the 74HC238D-Q100118?
The supply voltage range is from 2.0 to 6.0 V.
- What are the logic switching levels for the 74HC238D-Q100118?
The logic switching levels are CMOS for the 74HC238 and TTL for the 74HCT238.
- What is the temperature range for the 74HC238D-Q100118?
The device is specified from -40 °C to +125 °C.
- Does the 74HC238D-Q100118 have ESD protection?
- What are some common applications for the 74HC238D-Q100118?
Common applications include automotive systems, industrial control systems, memory chip select decoding, and demultiplexing in digital circuits.
- Is the 74HC238D-Q100118 compliant with any industry standards?
- What package options are available for the 74HC238D-Q100118?
Multiple package options are available, including SO16 (SOT109-1).
- Can the 74HC238D-Q100118 be used as a demultiplexer?
