SN54-74LS192 查看數據表（PDF） - Motorola => Freescale

零件编号

产品描述 (功能)

生产厂家

SN54-74LS192

PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER

Motorola => Freescale 

SN54/74LS192 • SN54/74LS193

AC WAVEFORMS

CPU or CPD

Q

1.3 V

tPHL

1.3 V

Figure 1

tW

tPLH

1.3 V

1.3 V

CPU or CPD

TCU or TCD

1.3 V

tPHL

tPLH

1.3 V

Figure 2

Pn

1.3 V

tw

PL 1.3 V

tPLH

tPHL

Qn

1.3 V

Figure 4

Pn

1.3 V

1.3 V

th(H)

th(L)

ts(H)

ts(L)

PL

1.3 V

Qn

Q=P

Q=P

* The shaded areas indicate when the input is permitted

* to change for predictable output performance

Figure 6

Pn

1.3 V

tPHL

tPLH

Qn

1.3 V

NOTE: PL = LOW

Figure 3

PL

CPU or CPD

Q

tW

tPHL

1.3 V

trec

1.3 V

1.3 V

Figure 5

MR

CPU or CPD

Q

tW

tPHL

1.3 V

trec

1.3 V

1.3 V

Figure 7

FAST AND LS TTL DATA

5-7

Share Link: