SN74HC623DWR集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF中文资料

SN74HC623DWR属于集成电路（IC）的缓冲器驱动器接收器收发器。由美国德州仪器公司制造生产的SN74HC623DWR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。

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

Lock Bus-Latch Capability

True Logic

description/ordering information

These octal bus transceivers are designed for

asynchronous two-way communication between

data buses. The control-function implementation

allows for maximum flexibility in timing.

The ’HC623 devices allow data transmission from

the A bus to the B bus or from the B bus to the A

bus, depending upon the logic levels at the

output-enable (OEAB and OEBA) inputs.

OEAB and OEBA disable the device so that the

buses are effectively isolated. The dual-enable

configuration gives the transceivers the capability

to store data by simultaneously enabling OEAB

and OEBA. Each output reinforces its input in this

transceiver configuration. When both OEAB and

OEBA are enabled and all other data sources to

the two sets of bus lines are in the high-impedance

state, both sets of bus lines (16 total) remain at

their last states. The 8-bit codes appearing on the

two sets of buses are identical.