5-6

FAST AND LS TTL DATA

SN54/74LS196

• SN54/74LS197

AC WAVEFORMS

Pn

tW

tPHL

tPLH

1.3 V

1.3 V

PL

Qn

tW

tPHL

1.3 V

1.3 V

1.3 V

trec

PL OR MR

CP

Q

CP

1.3 V

1.3 V

1.3 V

1.3 V

tPHL

tPLH

tW(H)

Q

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

1.3 V

1.3 V

1.3 V

tPHL

tPLH

Pn

Qn

NOTE: PL = LOW

1.3 V

1.3 V

1.3 V

1.3 V

Pn*

PL

Qn*

ts(H)

ts(L)

th(H)

th(L)

* The shaded areas indicate when the input is permitted

Q = P

Q = P