SN74LVC8T245 - 具有可配置电压转换和三态输出的 8 位双电源总线收发器

SN74LVC8T245是TI德州仪器公司的一款方向控制电压转换产品，SN74LVC8T245是具有可配置电压转换和三态输出的 8 位双电源总线收发器，本站介绍了SN74LVC8T245的封装应用图解、特点和优点、功能等，并给出了与SN74LVC8T245相关的TI元器件型号供参考。

SN74LVC8T245 - 具有可配置电压转换和三态输出的 8 位双电源总线收发器 - 方向控制电压转换 - 电压电平转换 - 德州仪器

产品特性

Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
VCC Isolation Feature – If Either VCC Input Is at GND, All Are in the High-Impedance State
Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 4000-V Human-Body Model (A114-A)
- 100-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

产品应用

Personal Electronic
Industrial
Enterprise
Telecom

产品说明

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74LVC8T245 is optimized to operate with VCCA and VCCB set at 1.65 V to 5.5 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5.5-V voltage nodes.

The SN74LVC8T245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.

The SN74LVC8T245 is designed so that the control pins (DIR and OE) are supplied by VCCA.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
SN74LVC8T245	SSOP (24)	8.20 mm x 5.30 mm
	SSOP (24)	8.65 mm x 3.90 mm
	TSSOP (24)	7.80 mm x 4.40 mm
	TVSOP (24)	5.00 mm x 4.40 mm
	VQFN (24)	5.50 mm x 3.50 mm

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