- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67763 > M37643M8-XXXHP 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80 PDF資料下載
參數(shù)資料
| 型號： | M37643M8-XXXHP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件頁數(shù)： | 78/120頁 |
| 文件大?。?/td> | 1253K |
| 代理商： | M37643M8-XXXHP |
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頁當前第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第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頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁
60
7643 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to
change.
CLOCK GENERATING CIRCUIT
The 7643 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.
When using an external clock, input the clocks to the XIN or XCIN
pin and leave the XOUT or XCOUT pin open.
Immediately after power on, only the XIN oscillation circuit starts
oscillating, and XCIN and XCOUT pins function as I/O ports.
Frequency Control
The internal system clock can be selected among fSYN, f(XIN),
f(XIN)/2, and f(XCIN). The internal clock
φ is half the frequency of
internal system clock.
(1) fSYN clock
This is made by the frequency synthesizer. f(XIN) or f(XCIN) can be
selected as its input clock. See also section “FREQUENCY SYN-
THESIZER”.
(2) f(XIN) clock
The frequency of internal system clock is the frequency of XIN pin.
(3) f(XIN)/2 clock
The frequency of internal system clock is half the frequency of XIN
pin.
(4) f(XCIN) clock
The frequency of internal system clock is the frequency of XCIN
pin.
sNote
If you switch the oscillation between XIN - XOUT and XCIN - XCOUT,
stabilize both XIN and XCIN oscillations. The sufficient time is re-
quired for the XCIN oscillation to stabilize, especially immediately
after power on and at returning from the stop mode.
Fig. 56 Ceramic resonator or quartz-crystal oscillator exter-
nal circuit
Fig. 57 External clock input circuit
XCIN
XCOUT
XIN
XOUT
CIN
COUT
CCIN
CCOUT
Rf
Rd
VCC
VSS
XCIN
XCOUT
XIN
XOUT
Open
External oscillation
circuit
External oscillation
circuit
VCC
VSS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37702S1LGP | 16-BIT, 8 MHz, MICROCONTROLLER, PQFP80 |
| M37702M2LXXXGP | 16-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP80 |
| M37702M2LXXXHP | 16-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP80 |
| M37703MDBSP | 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PDIP64 |
| M37721S1BFP | 16-BIT, 25 MHz, MICROCONTROLLER, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M3764A-12 | 制造商:OK International 功能描述: |
| M3765 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HORN/SIREN WITH SOFT CHIRP 6 ALARM SOUNDS |
| M3766 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HORN/SIREN WITH SOFT CHIRP 6 ALARM SOUNDS |
| M37702E2LGP | 制造商:Mitsubishi Electric 功能描述: |
| M37702E4BFS | 制造商:Renesas Electronics Corporation 功能描述:EPROM MCU/8BIT CMOS EMULATION CHIP - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復。