SN74ALVCHR16269AGR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-power, voltage-level shifting
• Package: 56-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V 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: 2.5ns (typical)
• Maximum Frequency: 400MHz

Detailed Pin Configuration

The SN74ALVCHR16269AGR has a total of 56 pins, which are divided into several groups:

• VCCA: Power supply for the A-side circuitry
• VCCB: Power supply for the B-side circuitry
• GND: Ground connection
• OEAB, OEB, and OEA: Output enable pins for respective sides
• DIR: Direction control pin
• A1-A16: Input pins for the A-side
• B1-B16: Input pins for the B-side
• Y1-Y16: Output pins

For a detailed pin configuration diagram, please refer to the datasheet provided by the manufacturer.

Functional Features

• Bidirectional voltage-level translation between two independent voltage domains
• Supports translation between voltages as low as 1.2V and as high as 3.6V
• Provides automatic direction control based on the DIR pin
• Low power consumption with high-speed operation
• Compatible with various logic families such as TTL, CMOS, and LVCMOS

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for compatibility with various systems - High-speed operation enables efficient data transfer - Low power consumption helps in reducing overall system power requirements - Bidirectional translation simplifies the design of multi-voltage domain systems

Disadvantages: - Limited to 16-bit translation, may not be suitable for larger data buses - Sensitive to electrostatic discharge (ESD), proper handling precautions required

Working Principles

The SN74ALVCHR16269AGR is a bidirectional logic level translator that operates by utilizing a combination of MOSFETs and CMOS circuitry. It translates logic levels between two independent voltage domains, allowing seamless communication between devices operating at different voltage levels.

The direction of translation is controlled by the DIR pin. When DIR is set to a logic high, the A-side inputs are translated to the B-side outputs, and vice versa when DIR is set to a logic low. The OEAB, OEB, and OEA pins are used to enable or disable the outputs on each side.

Detailed Application Field Plans

The SN74ALVCHR16269AGR finds applications in various fields where voltage-level translation is required. Some of the common application areas include:

1. Microcontrollers and microprocessors interfacing with peripherals operating at different voltage levels.
2. Communication systems involving multiple voltage domains, such as UART, SPI, or I2C interfaces.
3. Battery-powered devices where low power consumption is crucial.
4. Industrial automation systems requiring reliable and efficient voltage translation.
5. Automotive electronics for connecting components operating at different voltage levels.

Detailed and Complete Alternative Models

1. TXB0108: 8-bit bidirectional voltage-level translator with automatic direction control.
2. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.
3. SN74LVC1T45: Single-bit dual-supply bus transceiver with configurable voltage translation.

These alternative models offer similar functionality and can be considered as alternatives to the SN74ALVCHR16269AGR based on specific requirements and system constraints.

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