74AHC541BQ 데이터 시트보기 (PDF) - NXP Semiconductors.

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74AHC541BQ

Octal buffer/line driver; 3-state

NXP Semiconductors. 

Nexperia

74AHC541; 74AHCT541

Octal buffer/line driver; 3-state

Table 7. Dynamic characteristics …continued

GND = 0 V. For test circuit see Figure 7.

Symbol Parameter Conditions

For type 74AHCT541

tpd

propagation An to Yn; see Figure 5

delay

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

ten

enable time OEn to Yn; see Figure 6

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

tdis

disable time OEn to Yn; see Figure 6

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

CPD

power

per buffer;

dissipation CL = 50 pF; f = 1 MHz;

capacitance VI = GND to VCC

25 °C

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

Min Typ[1] Max Min

Max

Min

Max

[2]

- 3.5 5.5 1.0

6.5

1.0

7.0 ns

- 5.0 8.5 1.0

9.5

1.0

11.0 ns

- 4.0 7.0 1.0

8.0

1.0

9.0 ns

- 5.5 10.0 1.0

12.0

1.0

12.5 ns

[2]

- 5.0 7.0 1.0

8.0

1.0

9.0 ns

- 7.0 10.0 1.0

12.0

1.0

12.5 ns

[3] -

12 -

-

-

-

-

pF

[1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).

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

PD = CPD × VCC2 × fi + ∑ (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.

74AHC_AHCT541_3

Product data sheet

Rev. 03 — 12 November 2007

© Nexperia B.V. 2017. All rights reserved

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