UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 685

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

17.1 Functions of LCD Controller/Driver
The functions of the LCD controller/driver in the 78K0/Dx2 are as follows.
(1)
(2)
(3)
(4)
(5)
The LCD driver voltage generator uses internal resistance division method.
Automatic output of segment and common signals based on automatic display data memory read
Three different display modes:
• Static
• 1/3 duty (1/3 bias)
• 1/4 duty (1/3 bias)
Six different frame frequencies, selectable in each display mode
PD78F0838, 78F0839:
PD78F0840, 78F0841, 78F0846, 78F0847:
PD78F0842, 78F0843, 78F0848, 78F0849:
PD78F0836, 78F0837, 78F0844, 78F0845:
CHAPTER 17 LCD CONTROLLER/DRIVER
Preliminary User’s Manual U19748EJ1V0UD
Segment signal outputs: 40 (SEG0 to SEG39),
Common signal outputs: 4 (COM0 to COM3)
Segment signal outputs: 32 (SEG0 to SEG31),
Common signal outputs: 4 (COM0 to COM3)
Segment signal outputs: 28 (SEG0 to SEG27),
Common signal outputs: 4 (COM0 to COM3)
Segment signal outputs: 24 (SEG0 to SEG23),
Common signal outputs: 4 (COM0 to COM3)
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