DC Electrical Characteristics

MinMax limits apply across temperature range unless otherwise noted (Continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

OUTPUT DRIVE

(Continued)

Output Sink Resistance

MM78C29MM78C30

36

X

50

X

18

X

25

X

MM88C29MM88C30

41

X

50

X

21

X

26

X

Output Resistance

Temperature Coefficient

Source

055

% C

Sink

040

% C

Thermal Resistance

MM78C29MM78C30

100

CW

(D-Package)

MM88C29MM88C30

150

CW

(N-Package)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Propagation Delay Time to

Logical ‘‘1’’ or ‘‘0’’

(See

Figure 2 )

MM78C29MM88C29

80

200

ns

35

100

ns

MM78C30MM88C30

110

350

ns

50

150

ns

Differential Propagation Delay

Time to Logical ‘‘1’’ or ‘‘0’’

(See

Figure 1 )

MM78C30MM88C30

400

ns

150

ns

Input Capacitance

MM78C29MM88C29

(Note 3)

50

pF

MM78C30MM88C30

(Note 3)

50

pF

Power Dissipation Capacitance

MM78C29MM88C29

(Note 3)

150

pF

MM78C30MM88C30

(Note 3)

200

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 (CMOS Logic Databook)

http

www nationalcom

3