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參數(shù)資料
| 型號(hào)： | M38C24M6A-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 14 X 14 MM, 0.80 MM PITCH, PLASTIC, LQFP-64 |
| 文件頁數(shù)： | 54/102頁 |
| 文件大?。?/td> | 1567K |
| 代理商： | M38C24M6A-XXXFP |
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55
38C2 Group (A Version)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
(3) Oscillator concerns
Take care to prevent an oscillator that generates clocks for a micro-
computer operation from being affected by other signals.
Keeping oscillator away from large current signal lines
Install a microcomputer (and especially an oscillator) as far as pos-
sible from signal lines where a current larger than the tolerance of
current value flows.
q Reason
In the system using a microcomputer, there are signal lines for
controlling motors, LEDs, and thermal heads or others. When a
large current flows through those signal lines, strong noise occurs
because of mutual inductance.
Installing oscillator away from signal lines where potential levels
change frequently
Install an oscillator and a connecting pattern of an oscillator away
from signal lines where potential levels change frequently. Also,
do not cross such signal lines over the clock lines or the signal
lines which are sensitive to noise.
q Reason
Signal lines where potential levels change frequently (such as the
CNTR pin signal line) may affect other lines at signal rising edge
or falling edge. If such lines cross over a clock line, clock wave-
forms may be deformed, which causes a microcomputer failure or
a program runaway.
Keeping oscillator away from large current signal lines
Installing oscillator away from signal lines where potential levels
change frequently
CNVSS/VPP
VSS
About 10k
(4) Wiring to VPP pin of flash memory version
Connect an approximately 10 k
resistor to the VPP pin the shortest
possible in series and also to the VSS pin.
Note: Even when a circuit which included an approximately 10 k
resistor is used in the Mask ROM version, the microcomputer
operates correctly.
q Reason
The VPP pin of the flash memory version is the power source input
pin for the built-in flash memory. When programming/erasing in the
built-in flash memory, the impedance of the VPP pin is low to allow the
electric current for writing/erasing flow into the flash memory. Be-
cause of this, noise can enter easily. If noise enters the VPP pin, ab-
normal instruction codes or data are read from the built-in flash
memory, which may cause a program runaway.
Fig. 60 Wiring for the VPP pin of flash memory
Electric Characteristic Differences Between
Mask ROM and Flash memory Version MCUs
There are differences in electric characteristics, operation margin,
noise immunity, and noise radiation between the mask ROM and
flash memory version MCUs due to the difference in the manufactur-
ing processes.
When manufacturing an application system with the flash memory
version and then switching to use of the mask ROM version, please
perform sufficient evaluations for the commercial samples of the Mask
ROM version.
Oscillation Circuit Constant
(1) Determine an oscillation circuit constant after consulting the os-
cillator manufacturer about the matching characteristic evalua-
tion.
(2) Since oscillation circuit constants may be differences between
the flash memory version and the mask ROM version, evaluate
them, respectively.
XIN
XOUT
VSS
M
Microcomputer
Mutual inductance
Large
current
GND
XIN
XOUT
VSS
CNTR
Do not cross
N.G.
Fig. 59 Wiring for a large current signal line/Writing of signal
lines where potential levels change frequently
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38C29MCA-XXXFP | 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64 |
| M38C29MCA-XXXHP | 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64 |
| M38C29MCA-XXXHP | 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64 |
| M38C29FFAHP | 8-BIT, FLASH, 5 MHz, MICROCONTROLLER, PQFP64 |
| M38C29FFAFP | 8-BIT, FLASH, 5 MHz, MICROCONTROLLER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38C24M6-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38C24M6-XXXHP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38C29FFAFP | 制造商:Renesas Electronics Corporation 功能描述: |
| M38C29FFAFP#U0 | 功能描述:IC 740/38C2 MCU FLASH 64LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 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 |
| M38C29FFAHP | 制造商:Renesas Electronics Corporation 功能描述:MCU 3/5V 60K 64-LQFP - Trays |
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