h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 671
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h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 671 of 1165
- Download datasheet (6Mb)
18.1
The H8S/2646 Group has an on-chip segment type LCD control circuit, LCD driver, and power
supply circuit, enabling it to directly drive an LCD panel.
18.1.1
Features of the LCD controller/driver are given below.
• Display capacity
• LCD RAM capacity
• The segment output pins can be used as ports in groups of four.
• Common output pins not used because of the duty cycle can be used for common double-
• Choice of 11 frame frequencies
• A or B waveform selectable by software
• Built-in power supply split-resistance
• Display possible in operating modes other than standby mode and module stop mode
• Module stop mode
Duty Cycle
Static
1/2
1/3
1/4
8 bits × 20 bytes (160 bits)
Byte or word access to LCD RAM
buffering (parallel connection).
With 1/2 duty, parallel connection of COM1 to COM2, and of COM3 to COM4, can be
In static mode, parallel connection of COM1 to COM2, COM3, and COM4 can be used
As the initial setting, LCD operation is halted. Access to registers and LCD RAM is
used
enabled by clearing module stop mode.
Overview
Features
Section 18 LCD Controller/Driver
H8S/2646, H8S/2646R,
H8S/2645
24 SEG
24 SEG
24 SEG
24 SEG
Rev. 5.00 Sep 22, 2005 page 645 of 1136
Internal Driver
Section 18 LCD Controller/Driver
H8S/2648, H8S/2648R,
H8S/2647
40 SEG
40 SEG
40 SEG
40 SEG
REJ09B0257-0500
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