參數(shù)資料
型號： M30842MC-XXXGP
元件分類： 微控制器/微處理器
英文描述： 32-BIT, MROM, 32 MHz, MICROCONTROLLER, PQFP144
封裝： 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù)： 46/91頁
文件大?。?/td> 903K
代理商： M30842MC-XXXGP
49
38C2 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 38C2 group has two built-in oscillation circuits; main clock XIN–
XOUT and sub-clock XCIN–XCOUT. 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 external resistor is needed
between XIN and XOUT since a feedback resistor exists on-chip. How-
ever, an external feedback resistor is needed between XCIN and
XCOUT.
When the clock signal is supplied from external for the main clock,
input the signal to XIN pin and connect XOUT pin to VCC through 1 k
resistor.
When the clock signal is supplied from external for the sub-clock,
input the signal to XCIN and leave XCOUT open.
Immediately after power on, only the XIN oscillation circuit starts os-
cillating.
Frequency Control
(1) Frequency/8 Mode
The system clock
φ is the frequency of XIN divided by 8. After reset is
released, this mode is selected.
(2) Frequency/4 Mode
The system clock
φ is the frequency of XIN divided by 4.
(3) Frequency/2 Mode
The system clock
φ is the frequency of XIN divided by 2.
(4) Low-speed Mode
The system clock
φ is the frequency of XCIN divided by 2. In the low-
speed mode, the low-power dissipation operation can be performed
when the main clock XIN is stopped by setting the bit 7 of the CPU
mode register to “0”. In this case, when main clock XIN oscillation is
restarted, generate the wait time until the oscillation is stable by pro-
gram after the bit 7 of the CPU mode register is set to “1”.
Fig. 50 Ceramic resonator circuit
Fig. 51 External clock input circuit
XOUT
CIN
COUT
CCIN
CCOUT
Rfc
XCIN
XCOUT
XIN
s Notes on Clock Generating Circuit
If you switch the mode between frequency/2/4, or 8 and low-speed,
stabilize both XIN and XCIN oscillations. The sufficient time is required
for the sub-clock to stabilize, especially immediately after power on
and at returning from stop mode. When switching the mode, set the
frequency on condition that f(XIN) > 3f(XCIN).
Oscillation Control
(1) Stop Mode
If the STP instruction is executed, the system clock
φ stops at an “H”
level, and main clock and sub-clock oscillators stop.
In this time, values set previously to timer 1 latch and timer 2 latch
are loaded automatically to timer 1 and timer 2. Set the values to
generate the wait time required for oscillation stabilization to timer 1
latch and timer 2 latch (low-order 8 bits of timer 1 and high-order 8
bits of timer 2) before the STP instruction.
The frequency divider for timer 1 is used for the timer 1 count source,
and the output of timer 1 is forcibly connected to timer 2. In this time,
bits 0 to 5 of the timer 12 mode register are cleared to “0”.
The values of the timer 12 frequency divider selection register are
not changed.
Set the interrupt enable bits of the timer 1 and timer 2 to disabled
(“0”) before executing the STP instruction.
Oscillator restarts When reset occurs or an interrupt request is re-
ceived, but the system clock
φ is not supplied to the CPU until timer
2 underflows. This allows time for the clock circuit oscillation to stabi-
lize.
(2) Wait Mode
If the WIT instruction is executed, the system clock
φ stops at an “H”
level. The states of XIN and XCIN are the same as the state before
executing the WIT instruction. The system clock
φ restarts at reset or
when an interrupt is received. Since the oscillator does not stop, nor-
mal operation can be started immediately after the clock is restarted.
XCIN
XCOUT
XIN
XOUT
External oscillation circuit
VCC
VSS
Open
VCC
VSS
External oscillation
circuit, or External pulse
1 k
VCC
相關(guān)PDF資料
PDF描述
M30843FJGP 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP100
M30843FJTGP 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP100
M30843MW-XXXFP 32-BIT, MROM, 32 MHz, MICROCONTROLLER, PQFP100
M30845FHTGP 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP144
M30840ME-XXXGP 32-BIT, MROM, 32 MHz, MICROCONTROLLER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M30842ME-XXXGP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
M30842SGP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
M30842SGP#U3 功能描述:MCU 3/5V 0K I-TEMP 144-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:M16C™ M32C/80/84 產(chǎn)品培訓(xùn)模塊:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 標(biāo)準(zhǔn)包裝:1 系列:M16C™ M32C/80/87 核心處理器:M32C/80 芯體尺寸:16/32-位 速度:32MHz 連通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外圍設(shè)備:DMA，POR，PWM，WDT 輸入/輸出數(shù):121 程序存儲(chǔ)器容量:384KB（384K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:24K x 8 電壓 - 電源 (Vcc/Vdd):3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 34x10b，D/A 2x8b 振蕩器型:內(nèi)部 工作溫度:-20°C ~ 85°C 封裝/外殼:144-LQFP 包裝:托盤 產(chǎn)品目錄頁面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87
M30842SGP#U5 功能描述:IC M32C MPU ROMLESS 144LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:M16C™ M32C/80/84 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB（8K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
M30843FHFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*