SN74LVCC4245APWT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Voltage Translator
• Characteristics:
  • Bidirectional voltage translation between different logic levels
  • Supports both 3.3V and 5V systems
  • High-speed operation
  • Low power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Bi-directional voltage level shifter IC
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Voltage Levels:
  • High-Level Input Voltage (VIH): 2V to VCC + 0.5V
  • Low-Level Input Voltage (VIL): -0.5V to 0.8V
  • High-Level Output Voltage (VOH): VCC - 0.5V
  • Low-Level Output Voltage (VOL): 0.4V
• Operating Temperature Range: -40°C to 85°C
• Maximum Propagation Delay Time: 6.5 ns
• Maximum Operating Frequency: 100 MHz

Pin Configuration

The SN74LVCC4245APWT has a total of 24 pins arranged as follows:

___________ A1 |1 24| VCCB A2 |2 23| OE# B1 |3 22| B7 B2 |4 21| B6 B3 |5 20| B5 B4 |6 19| B4 GND|7 18| B3 A3 |8 17| B2 A4 |9 16| B1 A5 |10 15| B0 A6 |11 14| VCCA A7 |12 13| DIR ‾‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Bi-directional voltage translation: Allows for seamless communication between different logic level systems.
• Automatic direction control: The DIR pin determines the direction of data flow.
• Output enable control: The OE# pin enables or disables the outputs.
• Wide supply voltage range: Supports both 3.3V and 5V systems.

Advantages and Disadvantages

Advantages

• Easy integration into existing systems due to bidirectional voltage translation capability.
• High-speed operation allows for efficient data transfer.
• Low power consumption helps in reducing overall system power requirements.

Disadvantages

• Limited number of channels (8-bit) may not be suitable for applications requiring a higher number of I/O lines.
• Propagation delay time may impact real-time applications with strict timing requirements.

Working Principles

The SN74LVCC4245APWT is a bidirectional voltage level shifter IC that allows for seamless communication between different logic level systems. It operates by automatically controlling the direction of data flow based on the input provided to the DIR pin. When the DIR pin is set to a logic high, data flows from the A side to the B side, and when it is set to a logic low, data flows from the B side to the A side.

The output enable (OE#) pin can be used to enable or disable the outputs. When the OE# pin is set to a logic low, the outputs are enabled, allowing data to be transferred. Conversely, when the OE# pin is set to a logic high, the outputs are disabled, effectively isolating the A and B sides.

Detailed Application Field Plans

The SN74LVCC4245APWT is commonly used in various applications where voltage level translation is required. Some of the typical application fields include:

1. Microcontroller interfacing: The IC can be used to interface microcontrollers operating at different logic levels.
2. Communication systems: It enables communication between devices with different voltage requirements, such as UART, SPI, or I2C interfaces.
3. Mixed voltage systems: It facilitates data transfer between systems powered by different supply voltages, ensuring compatibility.

Detailed and Complete Alternative Models

• TXB0108PWR
• PCA9306DCUR
• 74LVC245APW
• SN74LVC8T245PW

These alternative models offer similar functionality and can be considered as alternatives to the SN74LVCC4245APWT.

In conclusion, the SN74LVCC4245APWT is a bidirectional voltage level shifter IC that allows for seamless communication between different logic level systems. With its high-speed operation, low power consumption, and