SN74CB3Q3345DGVR

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter and Translator
• Characteristics: Bidirectional Voltage-Level Translation, Low Power Consumption
• Package: VSSOP (Very Small Outline Package)
• Essence: Translates signals between different voltage levels in electronic circuits
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• High-Level Input Voltage: 2.3V to VCCA + 0.3V
• Low-Level Input Voltage: -0.3V to 0.8V
• High-Level Output Voltage: VCCB - 0.3V to VCCB
• Low-Level Output Voltage: 0V to 0.4V
• Maximum Operating Frequency: 100 MHz

Detailed Pin Configuration

The SN74CB3Q3345DGVR has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Data Input/Output Channel 1
3. B1 - Data Input/Output Channel 2
4. GND - Ground
5. B2 - Data Input/Output Channel 3
6. A2 - Data Input/Output Channel 4
7. VCCA - Supply Voltage for Side A
8. VCCB - Supply Voltage for Side B
9. B3 - Data Input/Output Channel 5
10. A3 - Data Input/Output Channel 6
11. B4 - Data Input/Output Channel 7
12. A4 - Data Input/Output Channel 8
13. B5 - Data Input/Output Channel 9
14. A5 - Data Input/Output Channel 10
15. B6 - Data Input/Output Channel 11
16. A6 - Data Input/Output Channel 12
17. B7 - Data Input/Output Channel 13
18. A7 - Data Input/Output Channel 14
19. B8 - Data Input/Output Channel 15
20. VCC - Positive Supply Voltage

Functional Features

• Bidirectional voltage-level translation between two different voltage domains
• Supports level shifting for both high-to-low and low-to-high voltage transitions
• Low power consumption, making it suitable for battery-powered devices
• Fast switching speed and minimal propagation delay
• ESD protection on all pins for enhanced reliability

Advantages and Disadvantages

Advantages

• Enables seamless communication between circuits operating at different voltage levels
• Wide supply voltage range allows compatibility with various systems
• Compact package size saves board space
• High-speed operation supports fast data transfer rates

Disadvantages

• Limited number of channels (15 bidirectional channels)
• Not suitable for applications requiring voltage translation beyond the specified range
• Sensitive to electrostatic discharge (ESD) events, necessitating proper handling and protection measures

Working Principles

The SN74CB3Q3345DGVR is a bidirectional voltage-level translator that facilitates communication between electronic circuits operating at different voltage levels. It utilizes a combination of MOSFETs and control logic to achieve bidirectional signal translation.

When the OE pin is low, the device is enabled, allowing signals to pass through from Side A to Side B or vice versa. The input/output channels (A1-A7, B1-B8) are connected to the corresponding channels on both sides. The voltage levels on Side A are translated to the voltage levels on Side B and vice versa.

The device operates within a specified supply voltage range, ensuring reliable translation between the two voltage domains. It also incorporates ESD protection on all pins to safeguard against electrostatic discharge events.

Detailed Application Field Plans

The SN74CB3Q3345DGVR is widely used in various electronic systems that require voltage-level translation. Some of its common application fields include:

1. Mobile Devices: Enables communication between different voltage domains in smartphones, tablets, and wearable devices.
2. IoT (Internet of Things): Facilitates connectivity between sensors, microcontrollers, and communication modules operating at different voltage levels.
3. Automotive Electronics: Supports voltage translation in automotive systems, such as infotainment systems, control units, and sensor interfaces.
4. Industrial Automation: Used in PLCs (Programmable Logic Controllers), motor control systems, and other industrial equipment requiring voltage-level translation.
5. Consumer Electronics: Enables compatibility between devices with different voltage requirements, such as audio/video equipment, gaming consoles, and home appliances.

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