HD74BC574A 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics
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HD74BC574A Datasheet PDF : 8 Pages
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HD74BC574A
Octal D Type Flip Flops With 3 State Outputs
ADE-205-042 (Z)
Rev. 0
June 1993
Description
The HD74BC574A 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 edge triger D type flip
flops with three state outputs in a 20 pin package. Data at the D inputs meeting set up requirements, are
transferred to the Q outputs on positive going transitions of the clock input. 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 strage 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
Ta = –40 to + 85°C
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