Datasheet > 74AHCT240BQ,115

74AHCT240BQ,115

更新时间： 2024-10-28 14:50:51

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74AHCT240BQ,115 数据手册

NXP Semiconductors

74AHC240; 74AHCT240

Octal buffer/line driver; inverting; 3-state

10. Dynamic characteristics

Table 7.

Dynamic characteristics

Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7.

Symbol Parameter

Conditions

25 C

40 C to +125 C

Max Max

(85 C) (125 C)

Unit

Min Typ^[1]Max Min

74AHC240

[2]

[3]

t_pd

propagation delay nAn to nYn; see Figure 5

V_CC= 3.0 V to 3.6 V; C_L= 15 pF

V_CC= 3.0 V to 3.6 V; C_L= 50 pF

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

3.9

5.8

2.8

4.2

7.5

11.0

4.8

1.0

8.6

12.5

5.7

10.8

15.6

7.1

7.3

8.5

10.6

t_en

enable time

nOE to nYn; see Figure 6

V_CC= 3.0 V to 3.6 V; C_L= 15 pF

V_CC= 3.0 V to 3.6 V; C_L= 50 pF

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

nOE to nYn; see Figure 6

4.4

5.8

3.1

4.1

10.0

13.5

6.5

1.0

12.0

15.5

7.7

19.4

12.5

8.5

10.0

t_dis

disable time

V_CC= 3.0 V to 3.6 V; C_L= 15 pF

V_CC= 3.0 V to 3.6 V; C_L= 50 pF

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

5.3

8.9

3.9

6.2

9.0

13.0

5.8

8.7

1.0

10.0

14.5

6.5

9.5

18.1

8.1

11.8

C_PD

power dissipation V_I= GND to V_CC; C_L= 50 pF;

capacitance f_i= 1 MHz

74AHC_AHCT240

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

Product data sheet

Rev. 4 — 25 September 2013

6 of 16

1...3 4 567 8 9...16

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