Symbol

Parameter

Conditions

Min

Typ

Max

Units

Propagation Delay Time to Q

250

400

ns

from Count Up or Down

100

160

ns

Propagation Delay Time to Q

120

200

ns

Borrow from Count Down

50

80

ns

Propagation Delay Time to

120

200

ns

Carry from Count Up

50

80

ns

Time Prior to Load that Data

100

160

ns

Must be Present

30

50

ns

Minimum Clear Pulse Width

300

480

ns

120

190

ns

Minimum Load Pulse Width

100

160

ns

40

65

ns

Propagation Delay Time to Q

300

480

ns

from Load

120

190

ns

Minimum Count Pulse Width

120

200

ns

35

80

ns

Maximum Count Frequency

25

4

MHz

6

10

MHz

Count Rise and Fall Time

15

m

s

5

m

s

Input Capacitance

(Note 2)

5

pF

Power Dissipation Capacitance

(Note 3)

100

pF

AC Parameters are guaranteed by DC correlated testing

Note 1

‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’

they are not meant to imply that the devices should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device

operation

Note 2

Capacitance is guaranteed by periodic testing

Note 3

AN-90

Cascading Packages

TLF5901 – 2

Guaranteed Noise Margin

TLF5901 – 3

3