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ST7920 Datasheet(PDF) 1 Page - Sitronix Technology Co., Ltd.

Part No. ST7920
Description  Chinese Fonts built in LCD controller/driver
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Manufacturer  SITRONIX [Sitronix Technology Co., Ltd.]
Direct Link  http://www.sitronix.com.tw
Logo SITRONIX - Sitronix Technology Co., Ltd.

ST7920 Datasheet(HTML) 1 Page - Sitronix Technology Co., Ltd.

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ST
Sitronix
ST7920
Chinese Fonts built in LCD controller/driver
V4.0
1/49
2008/08/18
Main Features
l
Operation Voltage Range:
Ø
2.7V to 5.5V
l
Support 8-bit, 4-bit and serial bus MPU interface
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64 x 16-bit display RAM (DDRAM)
Ø
Supports 16 words x 4 lines (Max)
Ø
LCD display range 16 words x 2 lines
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64 x 256-bit Graphic Display RAM (GDRAM)
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2M-bits Character Generation ROM (CGROM):
Support 8192 Chinese words (16x16 dot matrix)
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16K-bit half-width Character Generation ROM
(HCGROM):
Supports 126 characters (16x8 dot matrix)
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32-common x 64-segment (2 lines of character)
LCD drivers
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Automatic power on reset (POR)
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External reset pin (XRESET)
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With the extension segment drivers, the display
area can up to 16x2 lines
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Built-in RC oscillator:
Frequency is adjusted by an external resistor
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Low power consumption design
Ø
Normal mode (450uA Typ VDD=5V)
Ø
Standby mode (30uA Max VDD=5V)
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VLCD (V0 to VSS): max 7V
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Graphic and character mixed display mode
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Multiple instructions:
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Display Clear
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Return Home
Ø
Display ON/OFF
Ø
Cursor ON/OFF
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Display Character Blink
Ø
Cursor Shift
Ø
Display Shift
Ø
Vertical Line Scroll
Ø
Reverse Display (by line)
Ø
Standby Mode
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Built-in voltage booster (2 times)
VOUT: max 7V
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1/33 Duty (with ICON)
Function Description
ST7920 LCD controller/driver IC can display alphabets, numbers, Chinese fonts and self-defined characters. It
supports 3 kinds of bus interface, namely 8-bit, 4-bit and serial. All functions, including display RAM, Character
Generation ROM, LCD display drivers and control circuits are all in a one-chip solution. With a minimum system
configuration, a Chinese character display system can be easily achieved.
ST7920 includes character ROM with 8192 16x16 dots Chinese fonts and 126 16x8 dots half-width alphanumerical
fonts. Besides, it supports 64x256 dots graphic display area for graphic display (GDRAM). Mix-mode display with
both character and graphic data is possible. ST7920 has built-in CGRAM and provide 4 sets software programmable
16x16 fonts.
ST7920 has wide operating voltage range (2.7V to 5.5V). It also has low power consumption. So ST7920 is suitable
for battery-powered portable device.
ST7920 LCD driver consists of 32-common and 64-segment. Company with the extension segment driver (ST7921)
ST7920 can support up to 32-common x 256-segment display.
Part Number
Font Code
ST7920-0A
BIG-5 Code Set (Traditional Chinese)
ST7920-0B
GB Code Set (Simplified Chinese)
ST7920-0C
Chinese (Traditional/Simplified) & Japanese
ST7920-0F
Chinese (Traditional/Simplified), Japanese & Korean


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