74AHCT157-Q100 查看數據表（PDF） - NXP Semiconductors.

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74AHCT157-Q100

Quad 2-input multiplexer

NXP Semiconductors. 

Nexperia

74AHC157-Q100; 74AHCT157-Q100

Quad 2-input multiplexer

Table 7. Dynamic characteristics …continued

GND = 0 V; For test circuit, see Figure 9.

Symbol Parameter Conditions

25 C

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

Min Typ[1] Max Min

Max

Min

Max

CPD

power

CL = 50 pF; fi = 1 MHz;

[3]

dissipation VI = GND to VCC

capacitance 4 outputs switching via S

-

31

-

-

-

-

- pF

1 outputs switching via I

-

13

-

-

-

-

- pF

For type 74AHCT157-Q100

tpd

propagation nI0, nI1 to nY; see Figure 7 [2]

delay

VCC = 4.5 V to 5.5 V

CL = 15 pF

- 3.2 6.4 1.0

7.5

1.0

8.0 ns

CL = 50 pF

- 4.6 8.7 1.0

9.8

1.0

11.0 ns

S to nY; see Figure 7

VCC = 4.5 V to 5.5 V

CL = 15 pF

CL = 50 pF

E to nY; see Figure 8

- 3.7 8.6 1.0 10.0

1.0

11.0 ns

- 5.2 10.4 1.0

12.0

1.0

13.0 ns

[2]

VCC = 4.5 V to 5.5 V

CL = 15 pF

- 4.7 8.1 1.0

9.5

1.0

10.5 ns

CL = 50 pF

- 6.7 10.6 1.0

12.0

1.0

13.5 ns

CPD

power

CL = 50 pF; fi = 1 MHz;

[3]

dissipation VI = GND to VCC

capacitance 4 outputs switching via S

-

41

-

-

-

-

- pF

1 outputs switching via I

-

16

-

-

-

-

- 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.

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

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_AHCT157_Q100

Product data sheet

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

Rev. 1 — 4 July 2013

© Nexperia B.V. 2017. All rights reserved

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