SN74HCT244QPWRQ1.A中文资料德州仪器数据手册PDF规格书

1 Features

• Qualified for automotive applications

• ESD protection exceeds 1000 V per MIL-STD-883,

Method 3015; exceeds 200 V using machine

model (C = 200 pF, R = 0)

• 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 max ICC

• Typical tpd = 13 ns

• ±6-mA output drive at 5 V

• Low input current of 1 μA max

• Inputs are TTL-voltage compatible

• 3-state outputs drive bus lines or buffer memory

address registers

2 Description

This octal buffer and line driver is designed

specifically to improve both the performance and

density of 3-state memory address drivers, clock

drivers, and bus-oriented receivers and transmitters.

The ’HCT244 device is organized as two 4-bit buffers/

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.