SN54HCT244J中文资料德州仪器数据手册PDF规格书

1 Features

• Operating Voltage Range of 4.5 V to 5.5 V

• High-Current Outputs Drive up to 15 LSTTL Loads

• Low Power Consumption: 80-μA Maximum ICC

• Typical tpd = 13 ns

• ±6-mA Output Drive at 5 V

• Low Input Current of 1 μA Maximum

• Inputs Are TTL-Voltage Compatible

• 3-State Outputs Drive Bus Lines and Buffer

Memory Address Registers

2 Applications

• Servers

• LED Displays

• Network Switches

• Telecom Infrastructure

• Motor Drivers

• I/O Expanders

3 Description

These octal buffers and line drivers are designed

specifically to improve both the performance

and density of 3-state memory address drivers,

clockdrivers, and bus-oriented receivers and

transmitters. The SNx4HCT244 devices are organized

as two 4-bit buffers or drivers with separate outputenable

(OE) inputs. When OE is low, the device

passes noninverted data from the A inputs to the Y

outputs. When OE is high, the outputs are in the highimpedance

state.