SN74LVCH244ADBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: Low-voltage, high-speed, non-inverting
• Package: SSOP-20
• Essence: Logic Level Translator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• High-Level Input Voltage: 2.0V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Operating Frequency: 400 MHz
• Propagation Delay: 2.7 ns (typical)

Detailed Pin Configuration

The SN74LVCH244ADBR has a total of 20 pins, which are arranged as follows:

1. A1 - Input 1
2. Y1 - Output 1
3. A2 - Input 2
4. Y2 - Output 2
5. GND - Ground
6. Y3 - Output 3
7. A3 - Input 3
8. Y4 - Output 4
9. A4 - Input 4
10. VCC - Power Supply
11. OE - Output Enable
12. Y5 - Output 5
13. A5 - Input 5
14. Y6 - Output 6
15. A6 - Input 6
16. Y7 - Output 7
17. A7 - Input 7
18. Y8 - Output 8
19. A8 - Input 8
20. GND - Ground

Functional Features

• Non-inverting buffer/line driver
• Logic level translation between different voltage domains
• High-speed operation with low propagation delay
• Wide supply voltage range for compatibility with various systems
• Output enable pin for easy control of the output state

Advantages and Disadvantages

Advantages: - Low-voltage operation allows for compatibility with modern electronic devices - High-speed performance enables efficient data transmission - Non-inverting nature simplifies signal processing - Wide supply voltage range provides flexibility in system design

Disadvantages: - Limited number of input/output channels (8 in total) - SSOP package may require specialized equipment for soldering

Working Principles

The SN74LVCH244ADBR is a non-inverting buffer/line driver that operates as a logic level translator. It takes input signals from one voltage domain and translates them to another voltage domain without changing their logic levels. This IC uses CMOS technology, allowing it to operate at low voltages while maintaining high-speed performance.

The output enable (OE) pin controls the state of the outputs. When OE is low, the outputs are enabled and reflect the input signals. When OE is high, the outputs are disabled and remain in a high-impedance state.

Detailed Application Field Plans

The SN74LVCH244ADBR is commonly used in various applications, including:

1. Microcontrollers: It facilitates communication between microcontrollers operating at different voltage levels.
2. Communication Systems: It acts as a level shifter between different communication interfaces, such as UART, SPI, or I2C.
3. Data Acquisition Systems: It helps interface analog sensors with digital systems by translating voltage levels.
4. Battery-Powered Devices: Its low-voltage operation makes it suitable for battery-powered applications, such as portable electronics.

Detailed and Complete Alternative Models

1. SN74LVC244A: Similar functionality with a different package (TSSOP-20)
2. SN74LVCH245A: Octal bus transceiver with similar characteristics and pin configuration
3. SN74LVC1G07: Single buffer/driver with open-drain output

These alternative models offer similar features and can be used as substitutes depending on specific requirements.

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