74HC377N(2013) 데이터 시트보기 (PDF) - NXP Semiconductors.

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74HC377N
(Rev.:2013)

Octal D-type flip-flop with data enable; positive-edge trigger

NXP Semiconductors. 

NXP Semiconductors

74HC377; 74HCT377

Octal D-type flip-flop with data enable; positive-edge trigger

Table 7. Dynamic characteristics …continued

GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit, see Figure 8

Symbol Parameter

Conditions

25 C

40 C to +85 C 40 C to +125 C Unit

Min Typ Max Min Max

Min

Max

CPD

power

per package;

[3] - 20 -

-

-

-

- pF

dissipation

VI = GND to VCC  1.5 V

capacitance

[1] tpd is the same as tPHL and tPLH.

[2] tt is the same as tTHL and tTLH.

[3] CPD is used to determine the dynamic power dissipation (PD in W).

PD = CPD  VCC2  fi + (CL  VCC2  fo) where:

fi = input frequency in MHz;

fo = output frequency in MHz;

 (CL  VCC2  fo) = sum of outputs;

CL = output load capacitance in pF;

VCC = supply voltage in V.

11. Waveforms

VI

CP input

GND

VOH

Qn output

VOL

1/ fmax

VM

tW

t PHL

VM

t PLH

001aac426

Fig 6.

Measurement points are given in Table 8.

VOL and VOH are typical voltage output levels that occur with the output load.

Propagation delay clock input (CP) to output (Qn), clock (CP) pulse width, output transition time and the

maximum clock pulse frequency

74HC_HCT377

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 3 — 25 September 2013

© NXP B.V. 2013. All rights reserved.

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