5-357

FAST AND LS TTL DATA

SN54/74LS192

• SN54/74LS193

AC WAVEFORMS

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

1.3 V

CPU or CPD

CPU or CPD

CPU or CPD

Q

Q

Q

tw

CPU or CPD

TCU or TCD

PL

PL

Pn

Qn

MR

tPHL

tPLH

tPLH

Pn

Qn

NOTE: PL = LOW

tW

tPHL

Pn

PL

Qn

ts(H)

ts(L)

th(H)

th(L)

* The shaded areas indicate when the input is permitted

Q = P

Q = P

tPLH

trec

tPLH

tPHL

tPHL

tW

tPHL

tPHL

tW

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

trec