MC14522BCL 查看數據表（PDF） - Motorola => Freescale

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MC14522BCL

Presettable 4-Bit Down Counters

Motorola => Freescale 

SWITCHING WAVEFORMS

tr

tf

tf

tr

90%

VDD

90%

VDD

CLOCK

50%

INHIBIT

50%

10%

VSS

10%

VSS

tw

tw

1/fmax

tPLH

tPHL

1/fmax

tPLH

tPHL

ANY Q 90%

OR “0” 50%

10%

ANY Q

90%

OR “0” 50%

10%

tTLH

tTHL

tTLH

tTHL

Figure 5.

Figure 6.

tw

VDD

RESET

50%

VSS

tr

tf

90%

VDD

tPHL

ANY P

50%

10%

VSS

ANY Q

50%

tPLH

tPHL

ANY Q

50%

CLOCK

trem

VDD

50%

VSS

Figure 7.

Figure 8.

VALID

tr

tf

VDD

PRESET

ENABLE

90%

50%

10%

VDD

ANY P

50%

VSS

GND

tsu

th

tPHL

tPLH

VDD

PRESET

ENABLE

50%

“0”

50%

VSS

tw

Figure 9.

Figure 10.

MOTOROLA CMOS LOGIC DATA

MC14522B MC14526B

5

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