SN74ABT843DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-power, bidirectional voltage translation
• Package: SSOP (Shrink Small Outline Package)
• Essence: Translates signals between different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.3V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.5ns (typical)
• Maximum Frequency: 200MHz

Detailed Pin Configuration

The SN74ABT843DBR has a total of 20 pins, which are assigned as follows:

1. OE1 (Output Enable 1)
2. A1 (Input/Output A1)
3. B1 (Input/Output B1)
4. GND (Ground)
5. B2 (Input/Output B2)
6. A2 (Input/Output A2)
7. OE2 (Output Enable 2)
8. VCC (Supply Voltage)
9. B3 (Input/Output B3)
10. A3 (Input/Output A3)
11. B4 (Input/Output B4)
12. A4 (Input/Output A4)
13. B5 (Input/Output B5)
14. A5 (Input/Output A5)
15. B6 (Input/Output B6)
16. A6 (Input/Output A6)
17. B7 (Input/Output B7)
18. A7 (Input/Output A7)
19. B8 (Input/Output B8)
20. A8 (Input/Output A8)

Functional Features

• Bidirectional voltage translation between two different voltage domains
• Supports level shifting from 2.3V to 3.6V
• High-speed operation with low propagation delay
• Output enable control for disabling the outputs when not needed
• ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - Allows seamless communication between devices operating at different voltage levels - Low power consumption - Fast signal propagation

Disadvantages: - Limited voltage range (2.3V to 3.6V) - Not suitable for applications requiring higher voltage translation

Working Principles

The SN74ABT843DBR is designed to translate signals between two voltage domains. It utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional voltage translation. The input signals are level-shifted to match the desired output voltage level, allowing seamless communication between devices operating at different voltages.

Detailed Application Field Plans

The SN74ABT843DBR is commonly used in various applications, including:

1. Communication systems: Facilitates voltage translation between different components in communication systems, such as microcontrollers, sensors, and display modules.
2. Industrial automation: Enables interfacing between devices operating at different voltage levels in industrial automation systems, improving compatibility and reliability.
3. Consumer electronics: Used in devices like smartphones, tablets, and gaming consoles to ensure proper communication between components with varying voltage requirements.
4. Automotive electronics: Provides voltage translation capabilities in automotive electronic systems, allowing different components to communicate effectively.

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Single-bit dual-supply bus transceiver with voltage-level translation capability.
2. SN74AVC4T245PW: Quad-bit dual-supply bus transceiver with voltage-level translation and 3-state outputs.
3. SN74LVC8T245PWR: Octal-bit dual-supply bus transceiver with voltage-level translation and 3-state outputs.

These alternative models offer similar functionality to the SN74ABT843DBR and can be considered as alternatives based on specific application requirements.

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