Description
BU9796AFS
VDD
VLCD OSCIN
VSS
LCD voltage generator
COM0……COM3
SEG0…… SEG19
Common driver
Segment driver
+
-
LCD
BIAS
SELECTOR
+ -
Common Blink timing
counter
generator
DDRAM
OSCILLATOR
Power On Reset
Command register
Command Data Decoder
Serial interface
IF FILTER
SDA
SCL
SEG 2 SEG 3 SEG 4 SEG 5 SEG 6 SEG 7 SEG 8 SEG 9 SEG 10 SEG 11 SEG 12 SEG 13 SEG 14 SEG 15 SEG 16 SEG 17
SEG 1 SEG0 SDA SCL OSCIN TEST 2 TEST 1 VSS VDD VLCD COM 3 COM 2 COM 1 COM 0 SEG 19 SEG 18
Datash
Features
- Integrated RAM for display data (DDRAM): 20 x 4 bit (Max 80 Segment).
- LCD drive output : 4 Common output, Max 20 Segment output.
- Integrated Buffer AMP for LCD driving.
- Integrated Oscillator circuit.
- No external components.
- Low power consumption design.