- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69010 > M34501E4FP 4-BIT, OTPROM, MICROCONTROLLER, PDSO20 PDF資料下載
參數(shù)資料
| 型號： | M34501E4FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, MICROCONTROLLER, PDSO20 |
| 封裝： | 5.30 X 12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20 |
| 文件頁數(shù)： | 62/118頁 |
| 文件大?。?/td> | 952K |
| 代理商： | M34501E4FP |
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頁當(dāng)前第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
Rev.3.01
2005.02.07
page 46 of 112
REJ03B0104-0301
4501 Group
CLOCK CONTROL
The clock control circuit consists of the following circuits.
On-chip oscillator (internal oscillator)
Ceramic resonator
RC oscillation circuit
Multi-plexer (clock selection circuit)
Frequency divider
Internal clock generating circuit
Fig. 42 Clock control circuit structure
The system clock and the instruction clock are generated as the
source clock for operation by these circuits.
Figure 42 shows the structure of the clock control circuit.
The 4501 Group operates by the on-chip oscillator clock (f(RING))
which is the internal oscillator after system is released from reset.
Also, the ceramic resonator or the RC oscillation can be used for
the source oscillation (f(XIN)) of the 4501 Group. The CMCK in-
struction or CRCK instruction is executed to select the ceramic
resonator or RC oscillator, respectively.
MR3, MR2
00
01
10
11
Q S
QR
Q S
R
CRCK instruction
Q S
R
CMCK
instruction
Q S
R
RESET pin
XOUT
XIN
Key-on wakeup signal
Instruction clock
Counter
Wait time (Note 2)
control circuit
Program
start signal
RC oscillation circuit
Division circuit
divided by 8
divided by 4
divided by 2
Internal clock
generation circuit
(divided by 3)
Notes 1: System operates by the on-chip oscillator clock (f(RING)) until the CMCK or CRCK instruction
is executed after system is released from reset.
2: The wait time control circuit is used to generate the time required to stabilize the f(XIN) oscillation.
After the certain oscillation stabilizing wait time elapses, the program start signal is output.
This circuit operates when system is released from reset or returned from RAM back-up.
System clock
On-chip oscillator
(internal oscillator)
(Note 1)
Multiplexer
Ceramic resonator
circuit
POF or
EPOF instruction + POF2
instruction
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34501M4-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO20 |
| M34501E4FP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO20 |
| M34502M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34502M4-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34506M4-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34501M2 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34501M2-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34501M4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34501M4-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34502E4 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。