UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 388

• Manufacturer Part Number: UPD78F0413GA-GAM-AX
• Description: 8BIT UC, 32K FLASH, 1KB RAM, LCD
• Manufacturer: NEC

Specifications of UPD78F0413GA-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 30
• Ram Memory Size: 1024Byte
• Cpu Speed: 10MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 32KB
• Oscillator Type: External, Internal

388
Common Signal
V
Common Signal
Select signal level
Deselect signal level
Common Signal
Select signal level
Deselect signal level
Common Signal
Select signal level
Deselect signal level
LC0
(3)
/LV
SS
Output waveforms of common and segment signals
The voltages listed in Table 15-4 are output as common and segment signals.
When both common and segment signals are at the select voltage, a display on-voltage of V
The other combinations of the signals correspond to the display off-voltage.
Segment Signal
Segment Signal
Segment Signal
Segment Signal
V
V
V
V
LV
V
LC0
LC1
LC0
LC2
LC1
SS
/LV
/LV
/V
/V
= V
/V
LC1
LC3
LC0
SS
SS
LC2
CHAPTER 15 LCD CONTROLLER/DRIVER
–V
–V
–
–V
–
+V
+
Table 15-4. LCD Drive Voltage
1
3
1
2
1
4
LCD
LCD
LCD
LCD
V
V
V
/+V
/+V
/+V
/–V
User’s Manual U18698EJ1V0UD
LCD
LCD
LCD
(a) Static display mode
(b) 1/2 bias method
(c) 1/3 bias method
(d) 1/4 bias method
/+
/+
/–
LCD
LCD
LCD
LCD
Select Signal Level
Select Signal Level
Select Signal Level
Select Signal Level
1
2
1
3
1
4
V
V
V
LCD
LCD
LCD
LV
LV
LV
V
LC0
SS
SS
SS
/LV
/V
/V
/V
LC0
LC0
LC0
SS
0 V/0 V
0 V/0 V
+
–
+
+
–
1
3
1
3
1
2
1
4
1
2
V
V
V
V
V
LCD
LCD
LCD
LCD
LCD
/–
/+
/–
/–
/+
Deselect Signal Level
Deselect Signal Level
Deselect Signal Level
Deselect Signal Level
1
2
1
3
1
3
1
2
1
4
V
V
V
V
V
LCD
LCD
LCD
LCD
LCD
V
V
V
V
LC0
LC0
LC1
LC1
/LV
/LV
/V
/V
LC2
LC2
SS
SS
LCD
is obtained.