UPD16680 NEC, UPD16680 Datasheet - Page 26

• Manufacturer Part Number: UPD16680
• Description: 1/53/ 1/40 DUTY/ LCD CONTROLLER/DRIVER WITH BUILT-IN RAM
• Manufacturer: NEC

9.2.4 D/A converter setting
Caution After resetting, it is set to 20H.
9.2.5 Duty setting
Note If the duty cycle is 1/40, leave open from COM
9.2.6 Blink setting
26
MSB
MSB
MSB
0
0
0
The internal D/A converter is set. D/A converter output voltage is controlled from 1/2V
The duty is set.
The blinks of the pictograph of the address whose blink data is “1” are controlled.
Note This refers to the frequency of the external clock which is input from the OSC
0
1
0
1
0
0
0
1
0
1
1
0
b2 b1 b0
b2 b1 b0
0
0
LSB
LSB
LSB
0
+
MSB
Choices
000 : 1/53 duty
001 : 1/40 duty
Choices
000 : Blink halt
001 : Blink start (Blink frequency = f
010 : Blink start (Blink frequency = f
0
0
b5
Data Sheet S12694EJ2V0DS00
b4
Note
b3 b2 b1 b0
39
to COM
LSB
51
.
OSC
BRI
Note
/32768)
Extend Choices
D/A Converter output voltage
00H(MIN.) to 3FH(MAX.)
/2)
BR1
DD
pin.
to V
DD
.
PD16680