HD74BC373A中文資料日立數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

Description

The HD74BC373A provides high drivability and operation equal to or better than high speed bipolar standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5 of high speed bipolar logic IC, when the frequency is 10 MHz. The device has eight D type latches with three state outputs in a 20 pin package. When the latch enable input is high, the Q outputs will follow the D inputs. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable returns high again. When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements.

Features

? Input/Output are at high impedance state when power supply is off.

? Built in input pull up circuit can make input pins be open, when not used.

? TTL level input

? Wide operating temperature range input pins

Ta = –40 to + 85°C