SN74LVC245ARGYR

Product Overview

Category: Integrated Circuit
Use: Level Shifter/Transceiver
Characteristics: Bi-directional, 8-bit, voltage level translation
Package: VQFN-20
Essence: Transfers data between different voltage domains
Packaging/Quantity: Tape and Reel, 2500 units 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 - 0.4V to VCC + 0.5V
Low-Level Output Voltage: -0.4V to 0.4V
Maximum Operating Frequency: 100MHz

Detailed Pin Configuration

The SN74LVC245ARGYR has a total of 20 pins. The pin configuration is as follows:

DIR (Direction Control)
OE (Output Enable)
A1 (Input/Output Port A Bit 1)
A2 (Input/Output Port A Bit 2)
A3 (Input/Output Port A Bit 3)
A4 (Input/Output Port A Bit 4)
A5 (Input/Output Port A Bit 5)
A6 (Input/Output Port A Bit 6)
A7 (Input/Output Port A Bit 7)
A8 (Input/Output Port A Bit 8)
GND (Ground)
B8 (Input/Output Port B Bit 8)
B7 (Input/Output Port B Bit 7)
B6 (Input/Output Port B Bit 6)
B5 (Input/Output Port B Bit 5)
B4 (Input/Output Port B Bit 4)
B3 (Input/Output Port B Bit 3)
B2 (Input/Output Port B Bit 2)
B1 (Input/Output Port B Bit 1)
VCC (Supply Voltage)

Functional Features

Bi-directional data transfer between two voltage domains
Automatic direction control based on DIR pin
Output enable/disable control using OE pin
Supports voltage level translation from 1.65V to 5.5V

Advantages and Disadvantages

Advantages: - Allows interfacing between devices operating at different voltage levels - Simple and straightforward pin configuration - High-speed operation up to 100MHz - Low power consumption

Disadvantages: - Limited number of input/output ports (8-bit)

Working Principles

The SN74LVC245ARGYR is a level shifter/transceiver that enables bidirectional data transfer between two voltage domains. It uses automatic direction control based on the DIR pin, which determines the direction of data flow. The OE pin allows for enabling or disabling the outputs.

When the DIR pin is set to logic high, data is transferred from Port A to Port B. Conversely, when the DIR pin is set to logic low, data is transferred from Port B to Port A. The OE pin can be used to disable the outputs when not in use, reducing power consumption.

The device supports voltage level translation between 1.65V and 5.5V, making it suitable for various applications requiring interface compatibility between different voltage domains.

Detailed Application Field Plans

The SN74LVC245ARGYR finds applications in various fields, including:

Microcontroller interfacing with different voltage peripherals
Communication systems requiring level shifting between different logic families
Data acquisition systems with mixed voltage sensors
Industrial automation and control systems
Automotive electronics for signal translation between different subsystems

Detailed and Complete Alternative Models

SN74LVC245APWR - TSSOP-20 package, 2500 units per reel
SN74LVC245ADGVR - TVSOP-20 package, 2500 units per reel
SN74LVC245ARGYRG4 - VQFN-20 package, 2500 units per reel
SN74LVC245APWRE4 - TSSOP-20 package, 2500 units per reel

These alternative models offer similar functionality and characteristics to the SN74LVC245ARGYR but may differ in package type or manufacturer.

In conclusion, the SN74LVC245ARGYR is a versatile integrated circuit that facilitates bidirectional data transfer between different voltage domains. Its compact package, high-speed operation, and wide supply voltage range make it suitable for various applications in different fields.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74LVC245ARGYR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74LVC245ARGYR:

Q: What is SN74LVC245ARGYR? A: SN74LVC245ARGYR is a type of integrated circuit (IC) commonly used as a bidirectional level shifter or voltage translator.
Q: What is the purpose of using SN74LVC245ARGYR in technical solutions? A: SN74LVC245ARGYR is used to convert logic levels between different voltage domains, allowing communication between devices operating at different voltage levels.
Q: What voltage levels can SN74LVC245ARGYR support? A: SN74LVC245ARGYR supports voltage translation between 1.65V and 5.5V.
Q: How many bidirectional channels does SN74LVC245ARGYR have? A: SN74LVC245ARGYR has 8 bidirectional channels, allowing for simultaneous translation of 8 signals.
Q: Can SN74LVC245ARGYR be used for level shifting between different logic families? A: Yes, SN74LVC245ARGYR can be used for level shifting between various logic families such as TTL, CMOS, and LVTTL.
Q: What is the maximum data transfer rate supported by SN74LVC245ARGYR? A: SN74LVC245ARGYR can support data transfer rates up to 100 Mbps.
Q: Does SN74LVC245ARGYR require external pull-up or pull-down resistors? A: No, SN74LVC245ARGYR has built-in weak pull-up and pull-down resistors, eliminating the need for external resistors in most cases.
Q: Can SN74LVC245ARGYR be used in both 3.3V and 5V systems? A: Yes, SN74LVC245ARGYR is designed to work with both 3.3V and 5V systems, making it versatile for various applications.
Q: Is SN74LVC245ARGYR suitable for bidirectional communication between microcontrollers and peripherals? A: Yes, SN74LVC245ARGYR is commonly used for bidirectional communication between microcontrollers and peripherals such as sensors, displays, and memory devices.
Q: Are there any special considerations when using SN74LVC245ARGYR in high-speed applications? A: Yes, in high-speed applications, it is important to consider signal integrity, transmission line effects, and proper termination techniques to ensure reliable data transfer.

Please note that these answers are general and may vary depending on the specific application and requirements.