- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45048 > M38D29GF-XXXHP 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 PDF資料下載
參數(shù)資料
| 型號： | M38D29GF-XXXHP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 10X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64 |
| 文件頁數(shù)： | 98/138頁 |
| 文件大小： | 2880K |
| 代理商： | M38D29GF-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頁當前第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頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁
Rev.3.02
Apr 10, 2008
Page 60 of 131
REJ03B0177-0302
38D2 Group
CLOCK GENERATING CIRCUIT
The oscillation circuit of 38D2 Group can be formed by
connecting an oscillator, capacitor and resistor between XIN and
XOUT (XCIN and XCOUT). To supply a clock signal externally,
input it to the XIN pin and make the XOUT pin open. The clocks
that are externally generated cannot be directly input to XCIN.
Use the circuit constants in accordance with the oscillator
manufacturer's recommended values. No external resistor is
needed between XIN and XOUT since a feed-back resistor exists
on-chip. (An external feed-back resistor may be needed
depending on conditions.) However, an about 10 M
Ω external
feedback resistor is needed between XCIN and XCOUT.
The 38D2 Group operation mode immediately after reset
depends on the OSCSEL pin state in the QzROM version.
When the OSCSEL pin state is GND level, the only on-chip
oscillator starts oscillating. The XIN-XOUT oscillation stops
oscillating, and XCIN and XCOUT pins function as I/O ports.
Flash memory version as same.
When the OSCSEL pin state is VCC level, the XIN-XOUT
oscillation divided by 8 starts oscillating. The on-chip oscillator
stops oscillating, and the XCIN and XCOUT pins function as I/O
ports.
Note the following in each mode.
XIN Mode
The XIN-XOUT oscillation does not stop even if the XIN-XOUT
oscillation stop bit is set to “1”.
Low-Speed Mode
The XCIN-XCOUT oscillation stops if the port XC switch bit is set
to “0”.
On-Chip Oscillator Mode
Even if the on-chip oscillator stop bit is set to “1”, the on-chip
oscillator oscillation does not stop in the flash memory version,
but stops in the QzROM version.
Frequency Control
(1) On-chip oscillation mode
The system clock
φ is the on-chip oscillator oscillation divided
by 32.
(2) XIN mode
Frequency/2 mode, frequency /4 mode, and frequency/8 mode
are collectively referred as XIN mode.
- Frequency/8 Mode
The system clock
φ is the frequency of XIN divided by 8.
- Frequency/4 Mode
The system clock
φ is the frequency of XIN divided by 4.
- Frequency/2 Mode
The system clock
φ is half the frequency of XIN.
(3)Low-speed Mode
The system clock
φ is half the frequency of sub clock.
After reset and when system returns from the stop mode, the
operation mode depends on the OSCSEL pin state in the
QzROM version and the flash memory version operation mode is
the on-chip oscillator mode.
When the RESET pin changes from “L” to “H” and when the
STP instruction is executed, determine the input level applied to
the OSCSEL pin.
Refer to the clock state transition diagram for the setting of
transition to each mode.
The XIN-OUT oscillation is controlled by the bit 5 of CPUM, and
the sub-clock oscillation is controlled by the bit 4 of CPUM and
the on-chip oscillator oscillation is controlled by the bit 0 of
CPUM2.
In the on-chip oscillator mode, the oscillation by the oscillator
can be stopped. In the low-speed mode, the power consumption
can be reduced by stopping the XIN
XOUT oscillation.
In low-speed mode, the on-chip oscillator stops in the QzROM
version regardless of the on-chip oscillator stop bit value. The
on-chip oscillator does not stop in the flash memory version, so
set the on-chip oscillator stop bit to “1” to stop the oscillation.
Set enough time for oscillation to stabilize by programming to
restart the stopped oscillation and switch the operation mode.
Also, set enough time for oscillation to stabilize by programming
to switch the timer count source.
<Notes on Clock Generating Circuit>
If you switch the mode between on-chip oscillator mode, XIN
mode and low-speed mode, stabilize both XIN and XCIN
oscillations. Especially be careful immediately after power-on
and at returning from stop mode. Refer to the clock state
transition diagram for the setting of transition to each mode. Set
the frequency in the condition that f(XIN) > 3
f(XCIN).
When the XIN mode is not used (XIN-XOUT oscillation and
external clock input are not performed), connect XIN to VCC
through a resistor.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38D29GFFP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D29GCHP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D29GF-XXXFP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D24G6HP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D29GC-XXXHP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38D29T2-RLFS-HP | 制造商:Renesas Electronics Corporation 功能描述: |
| M38D58G8FP#U0 | 功能描述:IC 740/38D5 MCU QZ-ROM 80QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| M38D58G8HP#U0 | 功能描述:IC 740/38D5 MCU QZ-ROM 80LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| M38D59GCFP#U0 | 功能描述:IC 740/38D5 MCU QZ-ROM 80QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| M38D59GCHP#U0 | 功能描述:IC 740/38D5 MCU QZ-ROM 80LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復。