參數(shù)資料
型號： S1C63406D0A0100
元件分類： 微控制器/微處理器
英文描述： MICROCONTROLLER, UUC103
封裝： DIE-103
文件頁數(shù)： 65/151頁
文件大?。?/td> 1171K
代理商： S1C63406D0A0100
12
EPSON
S1C63406/408 TECHNICAL MANUAL
CHAPTER 2: POWER SUPPLY AND INITIAL RESET
2.1.1 Voltage <VD1> for internal circuits
VD1 is the voltage for the OSC3 oscillation circuit and the internal logic circuits, and is generated by the
internal logic system voltage regulator.
The S1C63406/408 is designed with twin clock specification; it has two types of oscillation circuits OSC1
and OSC3 built-in. Use OSC1 clock for normal operation, and switch it to OSC3 by the software when
high-speed operation is necessary. When switching the clock, the operating voltage VD1 must be switched
by the software to stabilize the operation of the oscillation circuit and internal circuits.
The internal logic system voltage regulator can output the following four types of VD1 voltage. It should
be set at the value according to the oscillation circuit and oscillation frequency by the software.
VD1 = 1.1 V for low-power operation (when OSC3 oscillation is OFF)
VD1 = 1.3 V for high-speed operation (when Max. 700 kHz OSC3 CR oscillation is ON)
VD1 = 1.5 V for high-speed operation (when Max. 2.2 MHz OSC3 CR oscillation is ON)
VD1 = 1.7 V for high-speed operation (when Max. 4.2 MHz OSC3 crystal/ceramic/CR oscillation is ON)
Refer to Section 4.3, "Oscillation Circuit", for the VD1 switching procedure.
2.1.2 Voltage <VOSC> for OSC1 oscillation circuit
VOSC is the voltage for the OSC1 oscillation circuit and is generated by the oscillation system voltage
regulator for stabilizing the oscillation.
2.1.3 Voltage <VC1, VC2, VC4, VC5> for LCD driving
VC1, VC2, VC4 and VC5 are the LCD drive voltages generated by the LCD system voltage circuit. These
four output voltages can only be supplied to the externally expanded LCD driver.
The LCD system voltage circuit generates VC1 or VC2 with the voltage regulator built-in, and generates
three other voltages by boosting or reducing the voltage of VC1 or VC2. Table 2.1.3.1 shows the VC1, VC2,
VC4 and VC5 voltage values and boost/reduce status.
Table 2.1.3.1 LCD drive voltage when generated internally
LCD drive voltage
VC1 (0.975–1.2 V)
VC2 (1.950–2.4 V)
VC4 (2.925–3.6 V)
VC5 (3.900–4.8 V)
VDD = 1.3–3.6 V
VC1 (standard)
2
× VC1
3
× VC1
4
× VC1
VDD = 2.5–3.6 V
1/2
× VC2
VC2 (standard)
3/2
× VC2
2
× VC2
Note: The LCD drive voltage can be adjusted by the software (see Section 4.7.5). Values in the above
table are typical values.
Either the VC1 or VC2 used for the standard is selected according to the supply voltage by the software.
The VC2 standard improves the display quality and reduces current consumption, however, the power
supply voltage VDD must be 2.5 V or more.
Refer to Section 4.7, "LCD Driver", for control of the LCD drive voltage.
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