1. General description

The 74LVT244A; 74LVTH244A is an 8-bit buffer/line driver with 3-state outputs. The device can

be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and

2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a

high-impedance OFF-state. Bus hold data inputs eliminate the need for external pull-up resistors to

define unused inputs

2. Features and benefits

• Octal bus interface

• 3-state buffers

• Output capability: +64 mA and -32 mA

• Wide supply voltage range from 2.7 to 3.6 V

• Overvoltage tolerant inputs to 5.5 V

• Direct interface with TTL levels

• BiCMOS high speed and output drive

• IOFF circuitry provides partial Power-down mode operation

• Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs

• Live insertion and extraction permitted

• Power-up 3-state

• No bus current loading when output is tied to 5 V bus

• Latch-up performance exceeds 500 mA per JESD 78 Class II Level B

• Complies with JEDEC standard JESD8C (2.7 V to 3.6 V)

• ESD protection:

• HBM JESD22-A114E exceeds 2000 V

• MM JESD22-A115-A exceeds 200 V

• Specified from -40 °C to 85 °C

74LVT244AD属于集成电路（IC） > 缓冲器，驱动器，接收器，收发器。安世半导体(中国)有限公司制造生产的74LVT244AD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。