W741C260 Datasheet, PDF (28/92 Pages) Winbond – 4-BIT MICROCONTROLLER

W741C260
LCDM.6 = 0 SEG24 to SEG27 work as CMOS output type.
= 1 SEG24 to SEG27 work as NMOS output type.
LCDM.7 = 0 SEG28 to SEG31 work as CMOS output type.
= 1 SEG28 to SEG31 work as NMOS output type.
The output waveforms for the five LCD driving modes are shown below.
Static Lighting System (Example)
Normal Operating Mode
COM0
Unlit LCD driver
outputs
Lit LCD driver
outputs
1/2 Bias 1/2 Duty Lighting System (Example)
Normal Operating Mode
COM0
COM1
LCD driver
outputs for
seg. on COM0,
COM1 sides
being unlit
LCD driver
outputs for
only seg. on
COM0 side
being lit
VDD2
VDD1
VSS
VDD2
VDD1
VSS
VDD2
VDD1
VSS
VDD2
VDD1
VSS
VDD2
VDD1
VSS
VDD2
VDD1
VSS
VDD2
VDD1
VSS
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