TC815CBU データシートの表示（PDF） - Microchip Technology

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TC815CBU

3-1/2 Digit Auto-Ranging A/D Converter with Triplex LCD Drive and Display Hold Function

Microchip Technology 

FIGURE 7-1:

AUTO-RANGE OPERATION: VOLTAGE MEASUREMENT

TC815

N = 0 if DC

N = 1 if AC

TC815

N = 0: 200.0mV Full Scale Range

N = 1: 2,000V Full Scale Range

Kth

Conversion

N = NK

Remaining in Range Selected

during the Kth Conversion

VX - (1/10N) VIN

N=N–1

VX < 180

Yes

?

No

N = 0 if DC

N = 1 if AC

Yes

VX > 2000

No

?

Yes

Display

Voltae (VX)

No

N=N+1

N=4

?

Yes

VX > 3000

?

No Display "1" XXX

Flash MSD

Yes

Display "1" 000

Flash MSD

Activate

Buzzer

Over Range

K=K+1

Start: Power-on, Function or Measurement Option Change

© 2002 Microchip Technology Inc.

DS21474B-page 15

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