- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370644 > HMS81C2020ALQ (Electronic Theatre Controls, Inc.) IND SM 4.7UH 15% PDF資料下載
參數(shù)資料
| 型號(hào)： | HMS81C2020ALQ |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | IND SM 4.7UH 15% |
| 中文描述： | CMOS單芯片8位微控制器與A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 86/107頁 |
| 文件大?。?/td> | 1482K |
| 代理商： | HMS81C2020ALQ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁當(dāng)前第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁
HMS81C2012A/2020A
82
SEP. 2004 Ver 2.00
18. OSCILLATOR CIRCUIT
The HMS81C20xxA has two oscillation circuits internal-
ly. X
IN
and X
OUT
are input and output for main frequency
and SX
IN
and SX
OUT
are input and output for sub frequen-
cy, respectively, inverting amplifier which can be config-
ured for being used as an on-chip oscillator, as shown in
Figure 18-1.
Figure 18-1 Oscillation Circuit
Oscillation circuit is designed to be used either with a ce-
ramic resonator or crystal oscillator. Since each crystal and
ceramic resonator have their own characteristics, the user
should consult the crystal manufacturer for appropriate
values of external components.
Oscillation circuit is designed to be used either with a ce-
ramic resonator or crystal oscillator. Since each crystal and
ceramic resonator have their own characteristics, the user
should consult the crystal manufacturer for appropriate
values of external components.
In addition, see Figure 18-2 for the layout of the crystal.
Note:
Minimize the wiring length. Do not allow the wiring to
intersect with other signal conductors. Do not allow the wir-
ing to come near changing high current. Set the potential of
the grounding position of the oscillator capacitor to that of
V
SS
. Do not ground it to any ground pattern where high cur-
rent is present. Do not fetch signals from the oscillator.
Figure 18-2 Layout of Oscillator PCB circuit
X
OUT
X
IN
V
SS
Recommend
C1,C2 = 20pF
C1
C2
X
OUT
X
IN
External Clock
Open
X
OUT
X
IN
External Oscillator
RC Oscillator
(mask option)
Crystal or Ceramic Oscillator
SX
OUT
SX
IN
V
SS
Recommend
C1,C2 = 100~120pF
C1
C2
32.768KHz
4.19MHz
Crystal Oscillator
Ceramic Resonator
C1,C2 = 30pF
Refer to AC Characteristics
For selection R value,
R
EXT
X
OUT
X
IN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HMS81C2020AQ | CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| HMS81C20XXA | CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| HMS81C20XXA-HK | CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| HN2716 | 2048-word x 8bit Erasable and Electrically Programmable Only Memory |
| HN27512 | 512K (64K X 8 BIT ) UV AND OTP EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMS81C2020AQ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| HMS81C20XXA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| HMS81C20XXA-HK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| HMS81C2112A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[VFD MCU: High Voltage IO/ADC/HS PWM/SCI] |
| HMS81C2120A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[VFD MCU: High Voltage IO/ADC/HS PWM/SCI] |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。