SN74LVTH646DGVRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-voltage, 3.3V to 5V translation, bidirectional, 3-state outputs
• Package: TSSOP-24
• Essence: This IC is designed to provide level shifting and bus transceiver functionality between devices operating at different voltage levels.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Logic Voltage Levels: 1.65V to 3.6V
• Input/Output Compatibility: 5V TTL/CMOS
• Maximum Data Rate: 400 Mbps
• Number of Channels: 8
• Output Drive Strength: ±12 mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVTH646DGVRE4 has a total of 24 pins, which are assigned as follows:

1. OE (Output Enable) 1
2. A1 (Data Direction Control) 1
3. A2 (Data Direction Control) 2
4. GND (Ground)
5. B1 (Data Direction Control) 3
6. B2 (Data Direction Control) 4
7. VCC (Supply Voltage)
8. B3 (Data Direction Control) 5
9. B4 (Data Direction Control) 6
10. B5 (Data Direction Control) 7
11. B6 (Data Direction Control) 8
12. B7 (Data Direction Control) 9
13. B8 (Data Direction Control) 10
14. DIR (Direction Control)
15. OE (Output Enable) 2
16. I/O1 (Bidirectional Data I/O) 1
17. I/O2 (Bidirectional Data I/O) 2
18. I/O3 (Bidirectional Data I/O) 3
19. I/O4 (Bidirectional Data I/O) 4
20. I/O5 (Bidirectional Data I/O) 5
21. I/O6 (Bidirectional Data I/O) 6
22. I/O7 (Bidirectional Data I/O) 7
23. I/O8 (Bidirectional Data I/O) 8
24. GND (Ground)

Functional Features

• Bidirectional voltage level shifting between 3.3V and 5V logic levels.
• 3-state outputs allow multiple devices to share a common bus.
• Output enable pins provide control over the direction of data flow.
• High-speed operation with a maximum data rate of 400 Mbps.
• Low-voltage operation with a supply voltage range of 2.7V to 3.6V.

Advantages and Disadvantages

Advantages: - Enables communication between devices operating at different voltage levels. - Provides bidirectional data transfer capability. - Supports high-speed data transmission. - Offers 3-state outputs for bus sharing.

Disadvantages: - Limited to specific voltage level translation (3.3V to 5V). - Requires careful consideration of input/output compatibility.

Working Principles

The SN74LVTH646DGVRE4 utilizes a combination of level shifting circuitry and bidirectional transceivers to enable communication between devices operating at different voltage levels. The direction of data flow is controlled by the DIR pin, while the OE pins enable or disable the outputs. The IC ensures reliable data transmission by providing 3-state outputs, allowing multiple devices to share a common bus without interference.

Detailed Application Field Plans

The SN74LVTH646DGVRE4 is commonly used in various applications, including:

1. Microcontroller interfacing with peripherals operating at different voltage levels.
2. Communication between devices using different logic families (e.g., TTL and CMOS).
3. Level shifting in mixed-voltage systems, such as automotive electronics and industrial control systems.
4. Bus transceiver functionality in data communication networks.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Octal Bus Transceiver with 3-State Outputs
2. SN74AVC4T245: 4-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation
3. SN74LVC8T245: 8-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation
4. SN74LVC2T45: Dual-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation
5. SN74LVC16T245: 16-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation

These alternative models offer similar functionality to the SN74LVTH646DGV