SN74ALVCH16245DGGR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-voltage, 16-bit bidirectional transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Transfers data between two different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Number of Bits: 16
• Logic Family: ALVCH
• Voltage Supply Range: 1.65V to 3.6V
• Input/Output Compatibility: LVTTL/LVCMOS
• Output Drive Strength: ±12mA
• Propagation Delay: 2.4ns (Max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74ALVCH16245DGGR has a total of 48 pins, which are divided into four groups:

• Group A (pins 1-12): Data Inputs/Outputs for Port A
• Group B (pins 13-24): Data Inputs/Outputs for Port B
• Group C (pins 25-36): Control Inputs for Port A
• Group D (pins 37-48): Control Inputs for Port B

Functional Features

• Bidirectional Data Transfer: Allows data transmission in both directions
• Voltage Translation: Translates signals between two voltage domains
• Direction Control: Enables control over the direction of data flow
• Output Enable: Allows individual port outputs to be disabled when not in use
• ESD Protection: Provides Electrostatic Discharge protection for robust operation

Advantages and Disadvantages

Advantages: - High-speed operation - Low-voltage compatibility - Bidirectional data transfer - ESD protection for reliability

Disadvantages: - Limited number of bits (16) - Requires external control signals for direction and output enable

Working Principles

The SN74ALVCH16245DGGR is a bidirectional level shifter and bus transceiver. It allows data transfer between two voltage domains, typically between a low-voltage microcontroller and a higher-voltage peripheral device. The IC uses internal circuitry to translate the logic levels of the input signals to match the voltage requirements of the output signals. The direction of data flow is controlled by the control inputs, and the output enable signal can be used to disable individual port outputs when not in use.

Detailed Application Field Plans

The SN74ALVCH16245DGGR is commonly used in various applications that require level shifting and bidirectional data transfer. Some of the typical application fields include:

1. Microcontroller/Peripheral Communication: Facilitates communication between microcontrollers and peripheral devices operating at different voltage levels.
2. Interface Conversion: Converts signals between different logic families, such as LVTTL and LVCMOS.
3. Bus Transceivers: Enables data transfer on buses with different voltage domains, such as I2C or SPI.
4. Mixed Voltage Systems: Allows integration of components operating at different voltage levels within the same system.

Detailed and Complete Alternative Models

1. SN74LVC245A: 8-bit bidirectional level shifter and bus transceiver.
2. SN74LVCH16244A: 16-bit non-inverting buffer/driver with 3-state outputs.
3. SN74AVC4T774: 4-bit dual-supply translating transceiver with configurable voltage translation.

These alternative models offer similar functionality and can be considered based on specific project requirements.

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