Overview
The 74HC238D,653 is a 3-to-8 line decoder/demultiplexer integrated circuit produced by Nexperia USA Inc. This device is part of the 74HC series, known for its CMOS low power dissipation and high noise immunity. It decodes three binary weighted address inputs (A0, A1, and A2) to eight mutually exclusive outputs (Y0 to Y7), making it versatile for various digital logic applications.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HC238D,653 |
| Package | SO16 (SOT109-1) |
| Number of Pins | 16 |
| Logic Function | Decoder, Demultiplexer |
| Number of Output Lines | 8 |
| Supply Voltage | 2.0 V to 6.0 V |
| Input Levels | CMOS level |
| Operating Temperature | -40 °C to +85 °C, -40 °C to +125 °C |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
| RoHS Compliance | Yes |
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) allowing for easy parallel expansion.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Provides robust performance against noise.
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- ESD Protection: High ESD protection levels according to JEDEC standards.
- Multiple Package Options: Available in various packages including SO16.
Applications
- Memory Chip Select Decoding: Ideal for selecting memory chips in digital systems.
- Digital Logic Circuits: Used in various digital logic applications requiring decoding and demultiplexing functions.
- Automotive and Industrial Systems: Suitable for use in automotive, industrial, and other high-reliability applications.
- Consumer Electronics: Found in consumer electronics such as mobile devices, wearables, and other electronic products.
Q & A
- What is the primary function of the 74HC238D,653 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 is the supply voltage range for the 74HC238D,653?
The supply voltage range is from 2.0 V to 6.0 V.
- What are the input levels for the 74HC238D,653?
The input levels are CMOS level.
- How many enable inputs does the 74HC238D,653 have?
The device has three enable inputs (E1, E2, and E3).
- What is the operating temperature range for the 74HC238D,653?
The operating temperature range is from -40 °C to +85 °C and from -40 °C to +125 °C.
- Is the 74HC238D,653 RoHS compliant?
Yes, the 74HC238D,653 is RoHS compliant.
- What type of ESD protection does the 74HC238D,653 have?
The device has high ESD protection levels according to JEDEC standards (HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- What package options are available for the 74HC238D,653?
The device is available in SO16 (SOT109-1) package among others.
- Can the 74HC238D,653 be used for memory chip select decoding?
Yes, it is ideal for memory chip select decoding.
- How can the 74HC238D,653 be expanded for more outputs?
The device can be expanded to a 1-of-32 decoder with just four '238 ICs and one inverter.
