MIC50397 Просмотр технического описания (PDF) - Micrel

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производитель

MIC50397

Six Decade Counter / Display Decoder

Micrel 

MIC50395/50396/50397

If external capacitors on the BCD inputs are undesirable, it

will be necessary to synchronize the negative going edge of

the load register and/or load counter command to coincide

with the positive going edge of the scan input signal. Also

the VSS range should be limited from 10.8 to 13.2 Volts.

Typically, the scan oscillator will oscillate at the following

frequencies with these nominal capacitor values from VSS to

scan input.

Functional Diagram

CIN

820 pF

470 pF

120 pF

Min

1.4 kHz

2.0 kHz

7.0 kHz

Micrel

Max

4.8 kHz

6.8 kHz

20 kHz

SN75492A

*

8-6

August 1998

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