MC74VHC245DTR2G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Level Shifter
• Characteristics: High-Speed, Low-Power, Non-Inverting
• Package: TSSOP-20
• Essence: This integrated circuit is designed to shift voltage levels between two different logic families.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 2.0V to 5.5V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 4.3ns (typical)
• Output Current: ±6mA
• Input Capacitance: 3pF (typical)
• Output Capacitance: 8pF (typical)

Pin Configuration

The MC74VHC245DTR2G has a total of 20 pins arranged as follows:

___________ A1 |1 20| VCC A2 |2 19| OE# B1 |3 18| B7 B2 |4 17| B6 B3 |5 16| B5 B4 |6 15| B4 GND|7 14| B3 A7 |8 13| B2 A6 |9 12| B1 A5 |10 11| A8 ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Non-inverting bidirectional voltage level shifting.
• High-speed operation suitable for various digital applications.
• Low power consumption, making it ideal for battery-powered devices.
• 3-state output allows multiple devices to share a common bus.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with different systems.
• Fast propagation delay ensures efficient data transfer.
• Low input and output capacitance minimizes signal distortion.
• 3-state output enables bus sharing and reduces pin count.

Disadvantages

• Limited output current may restrict use in high-current applications.
• TSSOP package may require careful handling during assembly.

Working Principles

The MC74VHC245DTR2G is based on CMOS technology and operates as a non-inverting voltage level shifter. It can convert logic signals between two different voltage levels, typically between 3.3V and 5V. The device features eight bidirectional channels that allow data transmission in both directions. The OE# (Output Enable) pin controls the direction of data flow by enabling or disabling the outputs.

Detailed Application Field Plans

The MC74VHC245DTR2G finds applications in various fields, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Sensor networks: It enables voltage level translation between sensors and microcontrollers.
3. Industrial automation: It serves as an interface between different control systems and devices.
4. Communication systems: It aids in voltage level conversion between different communication protocols.
5. Automotive electronics: It allows integration of components with varying voltage requirements.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar functionality with a different package (SOIC-20).
2. CD4508B: Dual 4-bit analog-to-digital converter with level shifting capabilities.
3. 74HC245: Octal bus transceiver with non-inverting level shifting.

These alternative models offer similar voltage level shifting capabilities and can be considered based on specific application requirements.

In conclusion, the MC74VHC245DTR2G is a versatile integrated circuit that provides efficient voltage level shifting between different logic families. Its high-speed operation, low power consumption, and bidirectional functionality make it suitable for various digital applications. However, its limited output current and package type should be taken into consideration when selecting this device for specific projects.