SN74LVC4245APWRG4

Overview

Product 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 - Low power consumption - High-speed operation - ESD protection on all pins - Available in a small package for space-constrained applications

Package: TSSOP (Thin Shrink Small Outline Package)

Essence: The SN74LVC4245APWRG4 is a level shifter IC that allows bidirectional voltage translation between different logic levels, making it suitable for interfacing between devices operating at different voltage levels.

Packaging/Quantity: The SN74LVC4245APWRG4 is available in a reel packaging with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range (VI): -0.5V to VCC + 0.5V
• Output Voltage Range (VO): -0.5V to VCC + 0.5V
• Maximum Operating Frequency: 100 MHz
• Number of Channels: 8
• Input/Output Capacitance: 6 pF
• Propagation Delay: 2.7 ns (max)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The SN74LVC4245APWRG4 has a total of 20 pins, which are arranged as follows:

___________ A1 |1 20| V_CC B1 |2 19| OE# A2 |3 18| B2 B2 |4 17| A2 A3 |5 16| B3 B3 |6 15| A3 A4 |7 14| B4 B4 |8 13| A4 GND |9 12| B5 OE# |10 11| A5 ‾‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Bidirectional voltage translation: Allows for seamless communication between devices operating at different voltage levels.
• Automatic direction control: The direction of data flow is automatically determined based on the logic level of the control pin (OE#).
• ESD protection: Provides electrostatic discharge protection on all pins, ensuring robustness and reliability.

Advantages and Disadvantages

Advantages: - Supports bidirectional voltage translation - Compatible with both 3.3V and 5V systems - Low power consumption - High-speed operation - ESD protection on all pins

Disadvantages: - Limited number of channels (8)

Working Principles

The SN74LVC4245APWRG4 utilizes a combination of MOSFETs and level-shifting circuitry to achieve bidirectional voltage translation. The direction of data flow is controlled by the OE# pin. When OE# is low, the IC operates in the normal mode, allowing data to pass from the A side to the B side. When OE# is high, the IC enters the high-impedance state, isolating the A and B sides.

Detailed Application Field Plans

The SN74LVC4245APWRG4 can be used in various applications where voltage translation is required, such as: - Interfacing between microcontrollers operating at different voltage levels - Communication between different logic families (e.g., TTL and CMOS) - Level shifting in I2C, SPI, or UART interfaces

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the SN74LVC4245APWRG4 include: - TXB0108PWR: 8-bit bidirectional voltage-level translator with automatic direction control. - PCA9306DCTR: Dual bidirectional I2C-bus and SMBus voltage-level translator. - CD4050BE: Hex non-inverting buffer/converter for interfacing between different logic levels.

These alternative models can be considered based on specific application requirements and availability.