參數(shù)資料
型號： HT49C30-1
廠商： Holtek Semiconductor Inc.
英文描述： 8-Bit LCD Type MCU
中文描述： 8位LCD型微控制器
文件頁數(shù)： 22/43頁
文件大?。?/td> 353K
代理商： HT49C30-1
HT49R30A-1/HT49C30-1/HT49C30L
Rev. 1.10
22
September 25, 2002
Options
The following shows the options in the device. All these options should be defined in order to ensure proper functioning
system.
Options
OSC type selection.
This option is to determine whether an RC or crystal or 32768Hz crystal oscillator is chosen as system clock.
WDT Clock source selection.
RTC and Time Base. There are three types of selection: system clock/4 or RTC OSC or WDT OSC.
WDT enable/disable selection.
WDT can be enabled or disabled by options.
CLR WDT times selection.
This option defines how to clear the WDT by instruction. One time means that the CLR WDT can clear the WDT.
Two times means that if both of the CLR WDT1 and CLR WDT2 have been executed, only then will the WDT be
cleared.
Time Base time-out period selection.
The Time Base time-out period ranges from clock/2
12
to clock/2
15
Clock means the clock source selected by op-
tions.
Buzzer output frequency selection.
There are eight types of frequency signals for buzzer output: Clock/2
2
~Clock/2
9
. Clock means the clock source se-
lected by options.
Wake-up selection.
This option defines the wake-up capability. External I/O pins (PA only) all have the capability to wake-up the chip
from a HALT by a falling edge.
Pull-high selection.
This option is to decide whether the pull-high resistance is visible or not on the PA0~PA3. (PB and PA4~PA7 are al-
ways pull-high)
PA0~PA3 CMOS or NMOS selection.
The structure of PA0~PA3 4 bits can be selected as CMOS or NMOS individually. When the CMOS is selected, the
related pins only can be used for output operations. When the NMOS is selected, the related pins can be used for in-
put or output operations. (PA4~PA7 are always NMOS)
Clock source selection of timer/event counter.
There are two types of selection: system clock or system clock/4.
I/O pins share with other functions selection.
PA0/BZ, PA1/BZ: PA0 and PA1 can be set as I/O pins or buzzer outputs.
PA3/PFD: PA3 can be set as I/O pins or PFD output.
LCD common selection.
There are three types of selection: 2 common (1/2 duty) or 3 common (1/3 duty) or 4 common (1/4 duty). If the 4 com-
mon is selected, the segment output pin SEG18 will be set as a common output.
LCD bias power supply selection.
There are two types of selection: 1/2 bias or 1/3 bias for HT49R30A-1/HT49C30-1.
LCD bias type selection.
This option is to determine what kind of bias is selected, R type or C type for HT49R30A-1/HT49C30-1, C type for
HT49C30L.
LCD driver clock selection.
There are seven types of frequency signals for the LCD driver circuits: f
S
/2
2
~f
S
/2
8
.
f
S
means the clock source selection by options.
LCD ON/OFF at HALT selection
LVR selection.
LVR has enable or disable options for HT49R30A-1/HT49C30-1
LVD selection.
LVD has enable or disable options for HT49R30A-1/HT49C30-1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT49C30-1_12 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type 8-Bit MCU
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HT49C30L(48SSOP) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller
HT49C30L_12 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type 8-Bit MCU
HT49C50 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:8-Bit Microcontroller
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