SN74LVCH245ANSR集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF中文资料

SN74LVCH245ANSR属于集成电路（IC）的缓冲器驱动器接收器收发器。由美国德州仪器公司制造生产的SN74LVCH245ANSR缓冲器，驱动器，接收器，收发器逻辑缓冲器、驱动器、接收器和收发器允许隔离对某个电路的逻辑信号的访问，以用于另一电路。缓冲器将其输入信号（不变或反相）传递到其输出，并可能用于清除弱信号或驱动负载。在布尔逻辑仿真器中，缓冲器主要用于增加传播延迟。逻辑接收器和收发器允许在数据总线之间进行隔离通信。

1 Features

1• Operate From 1.65 V to 3.6 V

• Inputs Accept Voltages to 5.5 V

• Max tpd of 6.3 ns at 3.3 V

• Typical VOLP (Output Ground Bounce)

<0.8 V at VCC = 3.3 V, TA = 25°C

• Typical VOHV (Output VOH Undershoot)

>2 V at VCC = 3.3 V, TA = 25°C

• Support Mixed-Mode Signal Operation on All

Ports (5-V Input/Output Voltage With

3.3-V VCC)

• Ioff Supports Live Insertion, Partial-Power-Down

Mode, and Back-Drive Protection

• Bus Hold on Data Inputs Eliminates the Need for

External Pullup or Pulldown Resistors

• Latch-Up Performance Exceeds 250 mA Per

JESD 17

• ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

• On Products Compliant to MIL-PRF-38535,

All Parameters Are Tested Unless Otherwise

Noted. On All Other Products, Production

Processing Does Not Necessarily Include Testing

of All Parameters.

2 Applications

• Servers

• PCs and Notebooks

• Network Switches

• Wearable Health and Wellness Devices

• Telecom Infrastructures

• Electronic Points of Sale

3 Description

The SN54LVCH245A octal bus transceiver is

designed for 2.7-V to 3.6-V VCC operation, and the

SN74LVCH245A octal bus transceiver is designed for

1.65-V to 3.6-V VCC operation. Inputs can be driven

from either 3.3-V or 5-V devices. This feature allows

the use of these devices as translators in a mixed

3.3-V/5-V system environment.