SN74LVC4245A - 具有三态输出的八路总线收发器和 3.3V 至 5V 移位器

SN74LVC4245A是TI德州仪器公司的一款应用特定电压转换产品，SN74LVC4245A是具有三态输出的八路总线收发器和 3.3V 至 5V 移位器，本站介绍了SN74LVC4245A的封装应用图解、特点和优点、功能等，并给出了与SN74LVC4245A相关的TI元器件型号供参考。

SN74LVC4245A - 具有三态输出的八路总线收发器和 3.3V 至 5V 移位器 - 应用特定电压转换 - 电压电平转换 - 德州仪器

产品特性

Bidirectional Voltage Translator
5.5 V on A Port and 2.7 V to 3.6 V on B Port
Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
Latch-Up Performance Exceeds 250 mA Per JESD 17
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model
- 200-V Machine Model
- 1000-V Charged-Device Model

产品应用

ATCA Solutions
CPAP Machines
Cameras: Surveillance Analog
Chemical or Gas Sensors
CT Scanners
DLP 3D Machine Vision and Optical Networking
Digital Signage
ECGs: Electrocardiograms
Field Transmitters: Pressure Sensors and Temperature Sensors
High-Speed Data Acquisition and Generation
HMI (Human Machine Interface)
RF4CE Remote Controls
Server Motherboards
Software Defined Radios (SDR)
Wireless LAN Cards and Data Access Cards
X-ray: Medical, Dental, and Baggage Scanners

Description

This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3 V, and A port has VCCA, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and vice versa.

The SN74LVC4245A device is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated. The control circuitry (DIR, OE) is powered by VCCA.

The SN74LVC4245A device terminal out allows the designer to switch to a normal all-3.3-V or all-5-V 20-terminal SN74LVC4245 device without board re-layout. The designer uses the data paths for pins 2–11 and 14–23 of the SN74LVC4245A device to align with the conventional '245 terminal out.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
SN74LVC4245A	SSOP (24)	8.20 mm × 5.30 mm
	SOIC (24)	15.40 mm × 7.50 mm
	TSSOP (24)	7.80 mm × 4.40 mm

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