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參數(shù)資料
| 型號(hào)： | EM65567 |
| 英文描述： | Synchronous Rectified MOSFET Driver; Temperature Range: 0°C to 70°C; Package: 8-QFN |
| 中文描述： | 平面彩色STN液晶顯示器驅(qū)動(dòng)器，內(nèi)置內(nèi)存 |
| 文件頁數(shù)： | 34/43頁 |
| 文件大小： | 291K |
| 代理商： | EM65567 |
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65 COM/ 132SEG Dot Matrix LCD Driver
4
EM65565A
PIN DESCRIPTION
Table 1
Pin Name
I/O
Function
No. of
Pins
VDD
Power
Supply
Shared with the MPU power supply terminal VCC
14
VSS
Power
Supply
This is a 0 V terminal connected to the system GND.
20
VCI
I
This is the reference power supply for the step-up voltage circuit
for the liquid crystal drive.
3
VRS
I
This is the externally input VREG power supply for the LCD power
supply voltage regulator. These are only enabled for the models
with the VREG external input option.
3
This is a multi-level power supply for the liquid crystal drive. The
voltage applied is determined by the liquid crystal cell, and is
changed through the use of a resistive voltage divided or through
changing the impedance using an Op. Amp. Voltage levels are
determined based on V0, and must maintain the relative
magnitudes shown below.
V0
≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS
Master operation: When the power supply turns ON, the internal
power supply circuits produce the V1 to V4 voltages shown below.
The voltage settings are selected using the LCD bias set
command.
1/9 bias
1/7 bias
1
8/9
V0
6/7
V0
V2
7/9
V0
5/7
V0
V3
2/9
V0
2/7
V0
V4
1/9
V0
1/7
V0
V1
V2
V3
V4
I/O
15
CAP1+
O
Capacitor 1 positive connection pin for voltage converter
3
CAP1-
O
Capacitor 1 negative connection pin for voltage converter
3
CAP2+
O
Capacitor 2 positive connection pin for voltage converter
3
CAP2-
O
Capacitor 2 negative connection pin for voltage converter
3
CAP3+
O
Capacitor 3 positive connection pin for voltage converter
3
CAP4+
O
Capacitor 4 positive connection pin for voltage converter
3
VOUT
I/O
DC/DC voltage converter input/output pin, connect a capacitor
between this terminal and VSS
2
VR
I
Output voltage regulator terminal.
These are only enabled when the V0 voltage regulator internal
resistors are not used (IRS = “L”).
These cannot be used when the V0 voltage regulator internal
resistors are used (IRS = “H”).
3
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