SN74LVCH245ANSR

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: Low Voltage, High-Speed, Non-Inverting
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Bi-directional voltage level translator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400 MHz
• Number of Channels: 8
• Input/Output Type: Tri-State
• Propagation Delay: 2.5 ns (typical)

Detailed Pin Configuration

The SN74LVCH245ANSR has a total of 20 pins, which are assigned as follows:

• Pin 1: OE (Output Enable) - Active low enable input for controlling the outputs
• Pins 2 to 9: A1 to A8 (Input/Output Ports) - Bi-directional data ports
• Pins 10 to 17: B1 to B8 (Input/Output Ports) - Bi-directional data ports
• Pin 18: GND (Ground) - Ground reference for the IC
• Pin 19: BDIR (Direction Control) - Controls the direction of data flow
• Pin 20: VCC (Supply Voltage) - Positive supply voltage input

Functional Features

• Bi-directional voltage level translation between two different voltage domains
• Non-inverting logic levels
• Tri-state outputs for easy interfacing with other devices
• Wide operating voltage range allows compatibility with various systems
• High-speed operation suitable for time-critical applications

Advantages and Disadvantages

Advantages: - Allows seamless communication between devices operating at different voltage levels - Non-inverting feature simplifies the design of bidirectional data buses - Tri-state outputs enable easy connection to multiple devices - Wide supply voltage range enhances compatibility with various systems

Disadvantages: - Limited to 8 channels, may not be suitable for applications requiring a higher number of channels - Propagation delay may affect timing-sensitive applications

Working Principles

The SN74LVCH245ANSR is a level shifter/transceiver that facilitates the translation of logic signals between two voltage domains. It operates by monitoring the input voltage levels and translating them to the corresponding output voltage levels. The direction of data flow is controlled by the BDIR pin. When BDIR is high, data flows from A1-A8 to B1-B8, and when BDIR is low, data flows in the opposite direction.

Detailed Application Field Plans

The SN74LVCH245ANSR is commonly used in various applications, including:

1. Microcontroller interfacing: It enables communication between microcontrollers operating at different voltage levels.
2. Sensor networks: It facilitates the integration of sensors with different voltage requirements into a single system.
3. Industrial automation: It allows for the exchange of data between different components of an automated system.
4. Communication systems: It assists in connecting devices with varying voltage levels in communication networks.
5. Consumer electronics: It enables the interconnection of different electronic devices with different voltage specifications.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar functionality with a wider supply voltage range (1.65V to 5.5V).
2. SN74AVC4T245: Four-channel alternative with a smaller package size (TSSOP).
3. SN74HCT245: Compatible with higher voltage levels (up to 5.5V) but slower operation.

(Note: The above list is not exhaustive and there may be other alternative models available in the market.)

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