74AHC574D 查看數據表（PDF） - NXP Semiconductors.

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74AHC574D

Octal D-type flip-flop; positive edge-trigger; 3-state

NXP Semiconductors. 

NXP Semiconductors

74AHC574; 74AHCT574

Octal D-type flip-flop; positive edge-trigger; 3-state

Table 7. Dynamic characteristics …continued

GND = 0 V. For test circuit see Figure 10.

Symbol Parameter Conditions

tsu

set-up time Dn to CP; see Figure 8

VCC = 3.0 V to 3.6 V;

CL = 50 pF

VCC = 4.5 V to 5.5 V;

CL = 50 pF

th

hold time Dn to CP; see Figure 8

VCC = 3.0 V to 3.6 V;

CL = 50 pF

VCC = 4.5 V to 5.5 V;

CL = 50 pF

CPD

power

CL = 50 pF; fi = 1 MHz;

dissipation VI = GND to VCC

capacitance

For type 74AHCT574

tpd

propagation CP to Qn; see Figure 7

delay

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

ten

enable time OE to Qn; see Figure 9

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

tdis

disable time OE to Qn; see Figure 9

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

fmax

maximum CP; see Figure 7

frequency

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

tW

pulse width CP; HIGH or LOW;

see Figure 7

VCC = 4.5 V to 5.5 V;

CL = 50 pF

tsu

set-up time Dn to CP; see Figure 8

VCC = 4.5 V to 5.5 V;

CL = 50 pF

25 °C

−40 °C to +85 °C −40 °C to +125 °C Unit

Min Typ[1] Max Min

Max

Min

Max

3.5 -

- 3.5

-

3.5

-

ns

3.0 -

- 3.0

-

3.0

-

ns

1.5 -

- 1.5

-

1.5

-

ns

1.5 -

- 1.5

-

1.5

-

ns

[3] -

10 -

-

-

-

-

pF

[2]

- 4.4 8.6 1.0

10.0

1.0

- 6.3 10.6 1.0

12.0

1.0

11.0 ns

13.5 ns

- 4.3 9.0 1.0

10.5

1.0

11.5 ns

- 6.1 11.0 1.0

12.5

1.0

14.0 ns

[2]

- 4.3 9.0 1.0

10.5

1.0

- 6.2 10.1 1.0

11.5

1.0

11.5 ns

13.0 ns

130 180 - 110

-

110

-

MHz

85 115 -

75

-

75

-

MHz

5.0 -

- 5.5

-

5.5

-

ns

3.0 -

- 3.5

-

3.5

-

ns

74AHC_AHCT574_2

Product data sheet

Rev. 02 — 24 January 2008

© NXP B.V. 2008. All rights reserved.

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