SA9109B Ver la hoja de datos (PDF) - South African Micro Electronic Systems

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componentes Descripción

Fabricante

SA9109B

MONOCHIP SINGLE PHASE BIDIRECTIONAL KILOWATT HOUR METERING IC

South African Micro Electronic Systems 

SA9109B

VDD

IIN

CURRENT

V SS

SENS OR

IN P U TS

V DD

IIP

V SS

V DD

IV N

V O LTA G E

SENS OR

V SS

IN P U T

AI

AV

DR-01254

GND

3. LCD Driver

The SA9109B has an on-chip LCD driver capable of driving a 4 backplane, 7 digit

(7 segment) display, as well as 6 announciators.

The backplane repetition frequency is approximately 90Hz.

The most significant digit is addressed by columns S[13] and S[12] and the least

significant digit by S[1] and S[0]. Announciators for the 4 tariff registers, the total

register and energy direction are available on the `h' segment of the 6 least

significant digits. The display segments are addressed via the column outputs given

in the table below:

sames

7/18

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