SN54HC640数据手册TI中文资料规格书

描述 Description

These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE)\\ input can be used to disable the device so the buses are effectively isolated.

特性 Features

• Wide Operating Voltage Range of 2 V to 6 V
• High-Current 3-State Outputs Can Drive Up To 15 LSTTL Loads
• Low Power Consumption, 80-µA Max ICC
• Typical tpd = 8 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA Max
• Inverting Logic