SN74AXC8T245RHLR

Product Overview

Category: Integrated Circuit
Use: Level Shifter and Translator
Characteristics: Bi-directional voltage level translator with 8-bit wide channels
Package: VQFN (Very Thin Quad Flat No-Lead) package
Essence: Translates signals between different voltage levels in electronic systems
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

Supply Voltage Range: 1.65V to 3.6V
High-Level Input Voltage: 2.3V to VCC + 0.5V
Low-Level Input Voltage: -0.5V to 0.8V
High-Level Output Voltage: VCC - 0.4V to VCC
Low-Level Output Voltage: 0V to 0.4V
Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AXC8T245RHLR has a total of 24 pins, which are arranged as follows:

OE (Output Enable) Pin
A1 (Channel A Control) Pin
B1 (Channel B Control) Pin
GND (Ground) Pin
B2 (Channel B Data) Pin
A2 (Channel A Data) Pin
VCCA (Voltage Supply for Channel A) Pin
VCCB (Voltage Supply for Channel B) Pin
DIR (Direction Control) Pin
NC (No Connection) Pin
B3 (Channel B Data) Pin
A3 (Channel A Data) Pin
B4 (Channel B Data) Pin
A4 (Channel A Data) Pin
B5 (Channel B Data) Pin
A5 (Channel A Data) Pin
GND (Ground) Pin
B6 (Channel B Data) Pin
A6 (Channel A Data) Pin
VCCA (Voltage Supply for Channel A) Pin
VCCB (Voltage Supply for Channel B) Pin
B7 (Channel B Data) Pin
A7 (Channel A Data) Pin
VCC (Positive Voltage Supply) Pin

Functional Features

Bi-directional voltage level translation between two different voltage domains
8-bit wide channels for simultaneous translation of multiple signals
Automatic direction control based on the DIR pin
Output enable control through the OE pin
Low power consumption and high-speed operation

Advantages and Disadvantages

Advantages: - Allows seamless communication between devices operating at different voltage levels - Supports bidirectional data transfer - Provides flexibility in system design by enabling integration of components with different voltage requirements - Low power consumption enhances overall energy efficiency

Disadvantages: - Limited to a specific number of channels (8-bit) - May introduce signal degradation or noise due to voltage level shifting

Working Principles

The SN74AXC8T245RHLR is designed to translate signals between two voltage domains. It uses a combination of MOSFETs and level-shifting circuitry to achieve bidirectional voltage level translation. The direction of translation is controlled by the DIR pin, while the OE pin enables or disables the output.

When the DIR pin is set to logic low, the device translates signals from Channel A (lower voltage domain) to Channel B (higher voltage domain). Conversely, when the DIR pin is set to logic high, the translation occurs from Channel B to Channel A.

Detailed Application Field Plans

The SN74AXC8T245RHLR is widely used in various electronic systems where voltage level translation is required. Some of the common application fields include:

Microcontroller interfacing with different peripheral devices
Communication interfaces between systems operating at different voltage levels
Battery-powered devices with multiple voltage domains
Industrial automation systems with mixed-voltage components
Automotive electronics for signal translation between different subsystems

Detailed and Complete Alternative Models

SN74LVC8T245PW: Similar 8-bit bi-directional voltage level translator with TSSOP package.
SN74HCT245N: Octal bus transceiver with non-inverting outputs, available in DIP package.
SN74LVCH8T245PWR: 8-bit dual-supply bus transceiver with 3-state outputs, offered in TSSOP package.

These alternative models provide similar functionality and can be considered as substitutes for the SN74AXC8T245RHLR based on specific system requirements.

In conclusion, the SN74AXC8T245RHLR is a versatile integrated circuit that enables seamless voltage

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74AXC8T245RHLR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74AXC8T245RHLR in technical solutions:

Q: What is SN74AXC8T245RHLR? A: SN74AXC8T245RHLR is a bidirectional voltage-level translator and voltage-level shifter integrated circuit (IC) manufactured by Texas Instruments.
Q: What is the purpose of SN74AXC8T245RHLR? A: SN74AXC8T245RHLR is used to translate logic levels between different voltage domains, allowing communication between devices operating at different voltage levels.
Q: What voltage levels can SN74AXC8T245RHLR support? A: SN74AXC8T245RHLR supports voltage translation between two voltage domains, typically ranging from 1.2V to 5.5V.
Q: How many channels does SN74AXC8T245RHLR have? A: SN74AXC8T245RHLR has 8 bidirectional channels, allowing for simultaneous translation of up to 8 signals.
Q: Can SN74AXC8T245RHLR handle high-speed data transmission? A: Yes, SN74AXC8T245RHLR is designed to support high-speed data transmission with a maximum data rate of 100 Mbps.
Q: Is SN74AXC8T245RHLR suitable for level shifting in I2C or SPI communication? A: Yes, SN74AXC8T245RHLR is commonly used for level shifting in I2C, SPI, and other serial communication protocols.
Q: Does SN74AXC8T245RHLR require external components for operation? A: SN74AXC8T245RHLR requires minimal external components, typically only requiring decoupling capacitors for power supply stability.
Q: Can SN74AXC8T245RHLR handle bi-directional level translation? A: Yes, SN74AXC8T245RHLR supports bidirectional voltage-level translation, allowing signals to be translated in both directions.
Q: What is the maximum current that SN74AXC8T245RHLR can source or sink? A: SN74AXC8T245RHLR can source or sink up to 50 mA of current per channel.
Q: Are there any special considerations when using SN74AXC8T245RHLR in mixed-voltage systems? A: Yes, it is important to ensure that the power supplies and ground connections are properly connected between the different voltage domains to avoid potential issues with signal integrity and noise.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.