74LVC245A-Q100 データシートの表示（PDF） - NXP Semiconductors.

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74LVC245A-Q100

Octal bus transceiver; 3-state

NXP Semiconductors. 

Nexperia

74LVC245A-Q100; 74LVCH245A-Q100

Octal bus transceiver; 3-state

10. Dynamic characteristics

Table 7. Dynamic characteristics

Voltages are referenced to GND (ground = 0 V). For test circuit see Fig. 7.

Symbol Parameter Conditions

Tamb = -40 °C to +85 °C

tpd

ten

tdis

tsk(o)

CPD

propagation

delay

enable time

disable time

output skew

time

power

dissipation

capacitance

nAn to nBn; nBn to nAn; see Fig. 5

VCC = 1.2 V

VCC = 1.65 V to 1.95 V

VCC = 2.3 V to 2.7 V

VCC = 2.7 V

VCC = 3.0 V to 3.6 V

nOE to nAn, nBn; see Fig. 6

VCC = 1.2 V

VCC = 1.65 V to 1.95 V

VCC = 2.3 V to 2.7 V

VCC = 2.7 V

VCC = 3.0 V to 3.6 V

nOE to nAn, nBn; see Fig. 6

VCC = 1.2 V

VCC = 1.65 V to 1.95 V

VCC = 2.3 V to 2.7 V

VCC = 2.7 V

VCC = 3.0 V to 3.6 V

per input; VI = GND to VCC

VCC = 1.65 V to 1.95 V

VCC = 2.3 V to 2.7 V

VCC = 3.0 V to 3.6 V

Min Typ [1] Max

[2]

-

17.0

-

1.5

6.5

14.6

1.0

3.4

7.6

1.5

3.4

7.3

1.5

2.9

6.3

[2]

-

22.0

-

1.9

8.3

19.5

1.5

4.6

10.7

1.5

4.8

9.5

1.5

3.7

8.5

[2]

-

12.0

-

2.9

5.5

12.3

1.0

3.1

7.1

1.5

3.9

8.0

1.7

3.6

7.0

[3] -

-

1.0

[4]

-

7.7

-

-

11.3

-

-

14.4

-

Tamb =

Unit

-40 °C to +125 °C

Min

Max

-

- ns

1.5

16.9 ns

1.0

8.7 ns

1.5

9.5 ns

1.5

8.0 ns

-

- ns

1.9

22.5 ns

1.5

12.4 ns

1.5

12.0 ns

1.5

11.0 ns

-

- ns

2.9

14.2 ns

1.0

8.2 ns

1.5

10.0 ns

1.7

9.0 ns

-

1.5 ns

-

- pF

-

- pF

-

- pF

[1] Typical values are measured at Tamb = 25 °C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V and 3.3 V respectively.

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

ten is the same as tPZL and tPZH.

tdis is the same as tPLZ and tPHZ.

[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

[4] CPD is used to determine the dynamic power dissipation (PD in μW).

PD = CPD × VCC2 × fi × N + Σ(CL × VCC2 × fo) where:

fi = input frequency in MHz; fo = output frequency in MHz

CL = output load capacitance in pF

VCC = supply voltage in Volts

N = number of inputs switching

Σ(CL × VCC2 × fo) = sum of the outputs.

74LVC_LVCH245A_Q100

Product data sheet

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

Rev. 3 — 11 September 2018

© Nexperia B.V. 2018. All rights reserved

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