74LVT273DB,112 查看數據表（PDF） - NXP Semiconductors.

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74LVT273DB,112

3.3 V octal D-type flip-flop

NXP Semiconductors. 

NXP Semiconductors

74LVT273

3.3 V octal D-type flip-flop

Table 7. Dynamic characteristics …continued

Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 9.

Symbol Parameter

Conditions

−40 °C to +85 °C Unit

Min Typ[1] Max

tW

pulse width

CP input HIGH or LOW; see Figure 6 [4]

VCC = 2.7 V

VCC = 3.3 V ± 0.3 V

3.3

-

3.3

1.5

- ns

- ns

MR input LOW; see Figure 7

VCC = 2.7 V

VCC = 3.3 V ± 0.3 V

3.3

-

3.3

1.5

- ns

- ns

trec

recovery time

see Figure 7

VCC = 2.7 V

VCC = 3.3 V ± 0.3 V

3.2

-

2.7

1.0

- ns

- ns

fmax

maximum frequency

CP input; see Figure 7

150

-

- MHz

[1] Typical values are measured at Tamb = 25 °C and VCC = 3.3 V

[2] tsu is the same as tsu(L) and tsu(H)

[3] th is the same as th(L) and th(H)

[4] tW is the same as tWL and tWH

11. Waveforms

VI

CP input

GND

VOH

Qn output

VOL

1/fmax

VM

tWH

tWL

tPHL

VM

tPLH

001aai739

Fig 6.

see Table 8 for measurement points.

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

CP Input to Qn output propagation delays and clock pulse width and maximum frequency

Table 8.

Input

VI

2.7 V

Measurement points

VM

1.5 V

Output

VM

1.5 V

74LVT273_3

Product data sheet

Rev. 03 — 10 September 2008

© NXP B.V. 2008. All rights reserved.

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