AC Electrical Characteristics

74F

54F

74F

Symbol

Parameter

Units

Min

Typ

Max

Min

Max

Min

Max

Maximum Clock Frequency

80

120

60

80

MHz

Propagation Delay

30

48

75

25

90

30

75

ns

35

50

80

30

85

35

80

Propagation Delay

50

70

100

40

125

50

105

ns

AC Operating Requirements

74F

54F

74F

Symbol

Parameter

Units

Min

Max

Min

Max

Min

Max

Setup Time HIGH or LOW

45

55

45

A or B to CP

40

40

40

ns

Hold Time HIGH or LOW

10

10

10

A or B to CP

10

10

10

CP Pulse Width

40

40

40

ns

HIGH or LOW

70

70

70

MR Pulse Width LOW

40

50

40

ns

Recovery Time

50

65

50

ns

MR to CP

Ordering Information

The device number is used to form part of a simplified purchasing code where the package type and temperature range are

defined as follows

74F

164A

S

C

X

Temperature Range Family

Special Variations

environmental and burn-in

processing

Device Type

Package Code

Temperature Range

4