SN74AVCA406LGQSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Level Translator
• Characteristics: Bi-directional, 4-bit, Auto-direction sensing, Low voltage operation
• Package: 16-pin WQFN (Wafer-level Chip Scale Package)
• Essence: Translates voltage levels between different logic families
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Logic Voltage Levels: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V
• Maximum Data Rate: 100 Mbps
• Operating Temperature Range: -40°C to +85°C
• Input Capacitance: 2 pF (typical)
• Output Capacitance: 3 pF (typical)

Detailed Pin Configuration

The SN74AVCA406LGQSR has a total of 16 pins, each serving a specific function:

1. VCCA: Power supply for the A-side logic (1.2V to 3.6V)
2. GND: Ground reference for the IC
3. A1-A4: Bi-directional data lines for the A-side logic
4. B1-B4: Bi-directional data lines for the B-side logic
5. VCCB: Power supply for the B-side logic (1.2V to 3.6V)
6. OE: Output Enable pin to control the direction of data flow
7. DIR: Auto-direction sensing pin to automatically determine the data flow direction
8. GND: Ground reference for the IC
9. B4: Bi-directional data line for the B-side logic
10. B3: Bi-directional data line for the B-side logic
11. B2: Bi-directional data line for the B-side logic
12. B1: Bi-directional data line for the B-side logic
13. A4: Bi-directional data line for the A-side logic
14. A3: Bi-directional data line for the A-side logic
15. A2: Bi-directional data line for the A-side logic
16. A1: Bi-directional data line for the A-side logic

Functional Features

• Bi-directional voltage level translation between different logic families
• Auto-direction sensing eliminates the need for direction control signals
• Supports 4-bit data transmission
• Wide supply voltage range allows compatibility with various systems
• Low power consumption and high-speed operation
• ESD (Electrostatic Discharge) protection for robust performance

Advantages and Disadvantages

Advantages: - Simplifies voltage level translation in mixed-voltage systems - Eliminates the need for additional direction control signals - Wide supply voltage range enhances flexibility - Fast data transmission rate supports high-speed applications - Compact package size saves board space

Disadvantages: - Limited to 4-bit data transmission - May not be suitable for applications requiring higher data rates - Requires careful consideration of input/output voltage levels to ensure proper translation

Working Principles

The SN74AVCA406LGQSR is a voltage level translator that enables seamless communication between different logic families. It utilizes a combination of level-shifting circuitry and auto-direction sensing to achieve bi-directional data transfer.

When the OE (Output Enable) pin is low, the device is enabled, and the DIR (Direction) pin determines the data flow direction automatically. The voltage levels on the A-side logic inputs (A1-A4) are translated to the corresponding voltage levels on the B-side logic outputs (B1-B4) and vice versa.

The level-shifting circuitry ensures that the translated voltage levels are compatible with the target logic family. The device operates within a wide supply voltage range, allowing it to interface with various systems.

Detailed Application Field Plans

The SN74AVCA406LGQSR finds applications in various fields where voltage level translation is required. Some of the potential application areas include:

1. Mixed-voltage systems: Enables communication between different logic families operating at different voltage levels.
2. Portable electronics: Facilitates data transfer between low-power microcontrollers and higher voltage peripherals.
3. Industrial automation: Allows integration of sensors and actuators operating at different voltage levels into a unified control system.
4. Automotive electronics: Supports communication between different automotive subsystems with varying voltage requirements.
5. IoT devices: Enables connectivity between low-power IoT devices and higher voltage gateways or cloud platforms.

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Single-bit voltage level translator with auto-direction sensing.
2. SN74HCT125N: Quad 3-state non-inverting buffer