SN74HCT244DWR

具有 TTL 兼容型 CMOS 输入和三态输出的 8 通道、4.5V 至 5.5V 缓冲器

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1 Features

• Operating Voltage Range of 4.5 V to 5.5 V

• High-Current Outputs Drive up to 15 LSTTL Loads

• LowPower Consumption: 80-µA Maximum ICC

• Typical tpd = 13 ns

• ±6-mA Output Drive at 5 V

• LowInput Current of 1 µA Maximum

• Inputs Are TTL-Voltage Compatible

• 3-State Outputs Drive Bus Lines and Buffer Memory Address Registers

2 Applications

• Servers

• LEDDisplays

• 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 output-enable (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 high-impedance state.