74LV245PW,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter/Transceiver
• Characteristics: Bidirectional, Non-Inverting, 8-bit, 3-state
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic Level Conversion and Signal Transmission
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 125 MHz
• Number of Channels: 8

Detailed Pin Configuration

The 74LV245PW,118 IC has a total of 20 pins arranged in a TSSOP package. The pin configuration is as follows:

__ __ A1 -| 1 20 |- VCC B1 -| 2 19 |- OE# A2 -| 3 18 |- I/O1B B2 -| 4 17 |- I/O2B A3 -| 5 16 |- I/O3B B3 -| 6 15 |- I/O4B A4 -| 7 14 |- I/O5B B4 -| 8 13 |- I/O6B GND-| 9 12 |- I/O7B DIR-|10 11 |- I/O8B ¯¯ ¯¯

Functional Features

• Bidirectional Data Transfer: The 74LV245PW,118 allows data to be transferred bidirectionally between two buses.
• Non-Inverting Logic: The IC does not invert the logic levels of the input signals during transmission.
• 3-state Outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share a common bus without interference.

Advantages and Disadvantages

Advantages: - Wide Supply Voltage Range: Can operate with a wide range of supply voltages, making it versatile for various applications. - High-Speed Operation: Supports a maximum operating frequency of 125 MHz, enabling fast data transfer. - Small Package Size: The TSSOP package offers a compact form factor, suitable for space-constrained designs.

Disadvantages: - Limited Channel Count: The IC provides 8 channels, which may not be sufficient for applications requiring a higher number of data lines. - Lack of ESD Protection: The IC does not have built-in Electrostatic Discharge (ESD) protection, requiring additional external measures for ESD protection.

Working Principles

The 74LV245PW,118 is designed as an octal bus transceiver with 3-state outputs. It facilitates the bidirectional transfer of data between two buses operating at different voltage levels. The DIR pin controls the direction of data flow, while the OE# pin enables or disables the outputs. When the OE# pin is active, the outputs are in a high-impedance state, allowing other devices to drive the bus. The IC uses non-inverting logic, ensuring that the input signal's logic level is maintained during transmission.

Detailed Application Field Plans

The 74LV245PW,118 is commonly used in various applications that require level shifting and signal transmission between different voltage domains. Some of the typical application fields include: - Microcontroller interfacing - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• SN74LV245APWR: Similar octal bus transceiver IC from Texas Instruments, available in a TSSOP package.
• MC74LVX245DTR2G: Octal non-inverting bus transceiver IC from ON Semiconductor, offered in a TSSOP package.
• CD74HCT245E: Octal bus transceiver with 3-state outputs from Texas Instruments, packaged in a DIP format.

These alternative models provide similar functionality to the 74LV245PW,118 and can be considered as substitutes based on specific requirements.

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