74HC280 Просмотр технического описания (PDF) - STMicroelectronics

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74HC280

9-bit parity generator

STMicroelectronics 

Electrical characteristics

M74HC280

Table 7. AC electrical characteristics

(CL = 50 pF, Input tr = tf = 6 ns)

Test condition

Value

Symbol

Parameter

tTLH, tTHL

Output transition

time

Propagation delay

tPLH, tPHL time (input to

ΣEVEN, ΣODD)

VCC (V)

2.0

4.5

6.0

2.0

4.5

6.0

TA = 25 °C

Min. Typ. Max.

30 75

8

15

7

13

-

80 200

26 40

22 34

-40 to 85 °C

Min. Max.

95

19

16

-

250

50

43

-55 to 125 °C Unit

Min. Max.

110

22 ns

19

-

290

58 ns

49

Table 8. Capacitive characteristics

Test condition

Value

Sym

Parameter

VCC (V)

TA = 25°C

Min Typ Max

-40 to 85 °C

Min Max

-55 to 125 °C Unit

Min Max

CIN

Input capacitance

CPD

Power dissipation

capacitance(1)

5.0

5

10

10

10

-

-

61

-

pF

1.

CcoPnDsuismdpetfiionnedwiathsotuhtelovaadlue(reoffetrhteo

IC’s

test

internal

circuit).

equivalent capacitance which is calculated

Average operating current can be obtained

from the operating current

by the following equation:

ICC(opr) = CPD x VCC x fIN + ICC.

Figure 4. Test circuit

1. Legend:

CRLT

=

=

50 pF or equivalent (includes jig and

ZOUT of pulse generator (typically 50

probe

Ω).

capacitance).

GAMS0301141630CB

8/14

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