液晶驱动资料
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ST
Sitronix
ST7565R
65 x 132 Dot Matrix LCD Controller/Driver
Ver 1.7c 1/72 2009/09/14
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Directly display RAM data through Display Data RAM.
RAM capacity : 65 x 132 = 8580 bits
Display duty selectable by select pin
1/65 duty : 65 common x 132 segment
1/49 duty : 49 common x 132 segment
1/33 duty : 33 common x 132 segment
1/55 duty : 55 common x 132 segment
1/53 duty : 53 common x 132 segment
High-speed 8-bit MPU interface:
ST7565R can be connected directly to both the 80x86
series MPUs and the 6800 series MPUs.
Serial interface (SPI-4) is also supported.
Abundant command functions
Display data Read/Write, display ON/OFF, Normal/
Reverse display mode, page address set, display start
line set, column address set, status read, display all
points ON/OFF, LCD bias set, electronic volume,
read/modify/write, segment driver direction selects,
power saver, common output status select, V
0
voltage
regulation internal resistor ratio set.
Embedded analog power supply circuits for Liquid
Crystal driving: Booster, Regulator and Follower.
Embedded Booster circuit:
2X,3X,4X,5X and 6X boost ratios are supported.
Independent input (V
DD2
) for boost reference voltage.
High-accuracy Regulator circuit:
Build-in Electronic volume function for the contrast
control. Thermal gradient = –0.05%/°C.
Embedded voltage Follower circuit for LCD driving.
Embedded R-C oscillator circuit.
The external clock is also supported.
Extremely low power consumption: 60uA, bare dice
(using the internal power). Settings:
V
DD
– V
SS
= V
DD2
– V
SS
=3.0 V, Booster Ratio=4,
V
0
– V
SS
= 11.0 V. Display OFF and the normal mode is
selected.
Logic power supply : V
DD
– V
SS
= 2.4V to 3.3 V
Analog Power (Boost reference voltage):
V
DD2
– V
SS
= 2.4V to 3.3V
Booster maximum voltage limited
V
OUT
= 13.5V
Liquid crystal drive power supply:
V
0
– V
SS
= 3.0V to 12.0 V
Wide range of operating temperatures: –30 to 85°C
Package type: COG only.
The chip is not designed to resist the light or to resist
the radiation.
Support LCD Module Size up to 2"
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The ST7565R is a single-chip dot matrix LCD driver that can
be connected directly to a microprocessor bus. 8-bit parallel
or 4-line SPI display data sent from the microprocessor is
stored in the internal display data RAM and the chip
generates a LCD drive signal independent of the
microprocessor. Because the chips in the ST7565R contain
65x132 bits of display data RAM and there is a 1-to-1
correspondence between the LCD panel pixels and the
internal RAM bits, these chips enable displays with a high
degree of freedom.
The ST7565R chips contain 65 common output circuits and
132 segment output circuits, so that a single chip can drive a
65x132 dot display (capable of displaying 8 columns x4 rows
of a 16x16 dot kanji font).
The chips are able to minimize power consumption because
no external operating clock is necessary for the display data
RAM read/write operation. Furthermore, because each chip
is equipped internally with a low-power LCD driver power
supply, resistors for LCD driver power voltage adjustment
and a display clock CR oscillator circuit, the ST7565R can be
used to create the lowest power display system with the
fewest components for high-performance portable devices.
PART NO. V
RS
temperature gradient V
RS
range
ST7565R -0.05%/°C
2.1V ±0.03V
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