HEF40175BU 데이터 시트보기 (PDF) - Philips Electronics

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HEF40175BU

Quadruple D-type flip-flop

Philips Electronics 

Philips Semiconductors

Quadruple D-type flip-flop

Product specification

HEF40175B

MSI

AC CHARACTERISTICS

VSS = 0 V; Tamb = 25 °C; input transition times ≤ 20 ns

Dynamic power

dissipation per

package (P)

VDD

V

TYPICAL FORMULA FOR P (µW)

5

2000 fi + ∑ (foCL) × VDD2

10

8400 fi + ∑ (foCL) × VDD2

15

22 500 fi + ∑ (foCL) × VDD2

where

fi = input freq. (MHz)

fo = output freq. (MHz)

CL = load capacitance (pF)

∑ (foCL) = sum of outputs

VDD = supply voltage (V)

Fig.4 Waveforms showing minimum pulse widths for CP and MR, MR to CP recovery time, and set-up time and

hold time for Dn to CP. Set-up and hold times are shown as positive values but may be specified as

negative values.

APPLICATION INFORMATION

Some examples of applications for the HEF40175B are:

• Shift registers

• Buffer/storage register

• Pattern generator

January 1995

5

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