- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45043 > M38198EC-XXXFP 8-BIT, OTPROM, MICROCONTROLLER, PQFP100 PDF資料下載
參數(shù)資料
| 型號(hào)： | M38198EC-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 176/217頁(yè) |
| 文件大?。?/td> | 2564K |
| 代理商： | M38198EC-XXXFP |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)當(dāng)前第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)第180頁(yè)第181頁(yè)第182頁(yè)第183頁(yè)第184頁(yè)第185頁(yè)第186頁(yè)第187頁(yè)第188頁(yè)第189頁(yè)第190頁(yè)第191頁(yè)第192頁(yè)第193頁(yè)第194頁(yè)第195頁(yè)第196頁(yè)第197頁(yè)第198頁(yè)第199頁(yè)第200頁(yè)第201頁(yè)第202頁(yè)第203頁(yè)第204頁(yè)第205頁(yè)第206頁(yè)第207頁(yè)第208頁(yè)第209頁(yè)第210頁(yè)第211頁(yè)第212頁(yè)第213頁(yè)第214頁(yè)第215頁(yè)第216頁(yè)第217頁(yè)
48
3819 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
CLOCK GENERATING CIRCUIT
The 3819 group has two built-in oscillation circuits. An oscillation
circuit can be formed by connecting a resonator between XIN and
XOUT (XCIN and XCOUT). Use the circuit constants in accordance
with the resonator manufacturer's recommended values. No exter-
nal resistor is needed between XIN and XOUT since a feed-back
resistor exists on-chip. However, an external feed-back resistor is
needed between XCIN and XCOUT.
Immediately after poweron, only the XIN oscillation circuit starts
oscillation, and XCIN and XCOUT pins function as I/O ports.
Frequency Control
Middle-speed mode
The internal clock
φ is the frequency of XIN divided by 8. After re-
set, this mode is selected.
High-speed mode
The internal clock
φ is half the frequency of XIN.
Low-speed mode
The internal clock
φ is half the frequency of XCIN.
Note : If you switch the mode between middle/high-speed and low-speed,
stabilize both XIN and XCIN oscillations. The sufficient time is re-
quired for the XCIN oscillation to stabilize, especially immediately
after poweron and at returning from stop mode. When switching the
mode between middle/high-speed and low-speed, set the frequency
on condition that f(XIN) > 3f(XCIN).
Low-power dissipation mode
When stopping the main clock XIN in the low-speed mode, the low-
power dissipation operation starts. To stop the main clock, set the
bit 5 of the CPU mode register to “1”. When the main clock XIN is
restarted, set enough time for oscillation to stabilize by program-
ming.
The low-power dissipation operation 200
A or less (at f(XIN) = 32
kHz) can be realized by reducing the XCIN–XCOUT drivability. To re-
duce the XCIN–XCOUT drivability, clear the bit 3 of the CPU mode
register to “0”. At reset or when executing the STP instruction, this
bit is set to “1” and strong drivability is selected to help the oscilla-
tion to start.
Oscillation Control
Stop mode
If the STP instruction is executed, the internal clock
φ stops at an
“H” level, and XIN and XCIN oscillators stop. Timer 1 is set to “FF16”
and timer 2 is set to “0116”. Either XIN or XCIN divided by 16 is in-
put to timer 1, and the output of timer 1 is connected to timer 2.
The bits of the timer 12 mode register are cleared to “0”. Set the
timer 1 and timer 2 interrupt enable bits to disabled (“0”) before ex-
ecuting the STP instruction.
Oscillator restarts at reset or when an external interrupt is re-
ceived, but the internal clock
φ is not supplied to the CPU until
timer 1 underflows. When using an external resonator, it is neces-
sary for oscillating to stabilize.
Wait mode
If the WIT instruction is executed, the internal clock
φ stops at an
“H” level. The states of XIN and XCIN are the same as the state be-
fore executing the WIT instruction. The internal clock restarts at
reset or when an interrupt is received. Since the oscillator does
not stop, normal operation can be started immediately after the
clock is restarted.
Fig. 47 Ceramic resonator external circuit
Fig. 48 External clock input circuit
XCIN
XCOUT
CCIN
CCOUT
Rd
Rf
XIN
XOUT
CIN
COUT
XCIN
XCOUT
XIN
XOUT
Open
External oscillation
circuit or pulse
External oscillation
circuit
VCC
VSS
VCC
VSS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38199MF-XXXKP | 8-BIT, MROM, MICROCONTROLLER, PQFP100 |
| M38198MC-XXXKP | 8-BIT, MROM, MICROCONTROLLER, PQFP100 |
| M38199MF-XXXFP | 8-BIT, MROM, MICROCONTROLLER, PQFP100 |
| M38203E4-XXXHP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP80 |
| M38203M4-XXXHP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP80 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38198MCA809 | 制造商:Panasonic Industrial Company 功能描述:IC |
| M38198MCA824 | 制造商:Panasonic Industrial Company 功能描述:IC |
| M38198MCA827 | 制造商:Panasonic Industrial Company 功能描述:IC |
| M38199MF072F | 制造商:Panasonic Industrial Company 功能描述:IC |
| M38199MF210F | 制造商:Panasonic Industrial Company 功能描述:IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。