MC74HC238ADTR2G

Product Overview

• Category: Integrated Circuit
• Use: Decoder/Demultiplexer
• Characteristics: High-Speed CMOS Logic, 3-to-8 Line Decoder/Demultiplexer
• Package: TSSOP-16
• Essence: Decodes a 3-bit binary input to one of eight outputs
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Current: -4mA
• Low-Level Output Current: 4mA
• Maximum Operating Frequency: 74MHz
• Propagation Delay Time: 15ns

Detailed Pin Configuration

1. GND (Ground)
2. A0 (Address Input Bit 0)
3. A1 (Address Input Bit 1)
4. A2 (Address Input Bit 2)
5. E1 (Enable Input 1)
6. E2 (Enable Input 2)
7. Y0 (Output 0)
8. Y1 (Output 1)
9. Y2 (Output 2)
10. Y3 (Output 3)
11. Y4 (Output 4)
12. Y5 (Output 5)
13. Y6 (Output 6)
14. Y7 (Output 7)
15. VCC (Positive Power Supply)

Functional Features

The MC74HC238ADTR2G is a high-speed CMOS logic decoder/demultiplexer integrated circuit. It decodes a 3-bit binary input to one of eight outputs. The enable inputs (E1 and E2) control the operation of the device. When both enable inputs are low, the outputs are in a high-impedance state. The device operates on a supply voltage range of 2V to 6V and has a maximum operating frequency of 74MHz.

Advantages and Disadvantages

Advantages: - High-speed operation - Wide supply voltage range - Low power consumption - Compact package size

Disadvantages: - Limited number of inputs and outputs - Not suitable for complex decoding applications

Working Principles

The MC74HC238ADTR2G works by using the three address inputs (A0, A1, and A2) to select one of the eight outputs (Y0 to Y7). The enable inputs (E1 and E2) control the output state. When both enable inputs are low, the outputs are disabled and in a high-impedance state. The device uses CMOS technology, which allows for high-speed operation and low power consumption.

Detailed Application Field Plans

The MC74HC238ADTR2G can be used in various applications, including:

1. Address decoding in microcontrollers and microprocessors
2. Memory selection in digital systems
3. Data routing in communication systems
4. Multiplexing and demultiplexing in data transmission
5. Control signal generation in industrial automation

Detailed and Complete Alternative Models

1. SN74LS138N: 3-to-8 Line Decoder/Demultiplexer, DIP-16 package
2. CD74HC238E: High-Speed CMOS Logic, 3-to-8 Line Decoder/Demultiplexer, PDIP-16 package
3. 74HCT238: High-Speed CMOS Logic, 3-to-8 Line Decoder/Demultiplexer, SOIC-16 package

These alternative models offer similar functionality and can be used as replacements for the MC74HC238ADTR2G in different applications.

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