- 您現在的位置：買賣IC網 > PDF目錄224142 > M38030F8L-XXXSP (Renesas Technology Corp.) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF資料下載
參數資料
| 型號： | M38030F8L-XXXSP |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數： | 113/119頁 |
| 文件大?。?/td> | 1575K |
| 代理商： | M38030F8L-XXXSP |
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頁當前第113頁第114頁第115頁第116頁第117頁第118頁第119頁
Rev.1.00
Apr 2, 2007
Page 93 of 117
REJ03B0212-0100
3803 Group (Spec.L)
Countermeasures against noise
(1) Shortest wiring length
1. Wiring for RESET pin
Make the length of wiring which is connected to the RESET
pin as short as possible. Especially, connect a capacitor across
the RESET pin and the VSS pin with the shortest possible
wiring (within 20mm).
<Reason>
The width of a pulse input into the RESET pin is determined by
the timing necessary conditions. If noise having a shorter pulse
width than the standard is input to the RESET pin, the reset is
released before the internal state of the microcomputer is com-
pletely initialized. This may cause a program runaway.
Fig 90. Wiring for the RESET pin
2. Wiring for clock input/output pins
Make the length of wiring which is connected to clock I/O
pins as short as possible.
Make the length of wiring (within 20 mm) across the
grounding lead of a capacitor which is connected to an
oscillator and the VSS pin of a microcomputer as short as
possible.
Separate the VSS pattern only for oscillation from other VSS
pat-terns.
<Reason>
If noise enters clock I/O pins, clock waveforms may be
deformed. This may cause a program failure or program
runaway. Also, if a potential difference is caused by the noise
between the VSS level of a microcomputer and the VSS level of
an oscillator, the correct clock will not be input in the
microcomputer.
Fig 91. Wiring for clock I/O pins
(2) Connection of bypass capacitor across VSS line and VCC line
In order to stabilize the system operation and avoid the latch-up,
connect an approximately 0.1
F bypass capacitor across the VSS
line and the VCC line as follows:
Connect a bypass capacitor across the VSS pin and the VCC pin
at equal length.
Connect a bypass capacitor across the VSS pin and the VCC pin
with the shortest possible wiring.
Use lines with a larger diameter than other signal lines for VSS
line and VCC line.
Connect the power source wiring via a bypass capacitor to the
VSS pin and the VCC pin.
Fig 92. Bypass capacitor across the VSS line and the
VCC line
RESET
Reset
circuit
Noise
VSS
N.G.
Reset
circuit
VSS
RESET
VSS
O.K.
Noise
XIN
XOUT
VSS
N.G.
XIN
XOUT
VSS
O.K.
VSS
VCC
VSS
VCC
N.G.
O.K.
相關PDF資料 |
PDF描述 |
|---|---|
| M38030F8L-XXXWG | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M381-L-109-5121LF | 9 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
| M381-L-109-5221LF | 9 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
| M381-L-110-5121LF | 10 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
| M381-L-110-5221LF | 10 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| M38037M5H-175HP#U0 | 制造商:Renesas Electronics Corporation 功能描述:8BIT CISC - Trays |
| M38037M8108F | 制造商:Panasonic Industrial Company 功能描述:IC |
| M38037M8H-194HP#U0 | 制造商:Renesas Electronics Corporation 功能描述:8BIT CISC - Trays |
| M38039FFHFP#U0 | 功能描述:IC 740 MCU FLASH 60K 64QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 產品培訓模塊:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 標準包裝: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 外圍設備:DMA，POR，PWM，WDT 輸入/輸出數:121 程序存儲器容量:384KB（384K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:24K x 8 電壓 - 電源 (Vcc/Vdd):3 V ~ 5.5 V 數據轉換器:A/D 34x10b，D/A 2x8b 振蕩器型:內部 工作溫度:-20°C ~ 85°C 封裝/外殼:144-LQFP 包裝:托盤 產品目錄頁面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M38039FFHHP | 功能描述:MCU 3/5V 56K+4K 64-LQFP RoHS:否 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:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設備:POR，PWM，溫度傳感器，WDT 輸入/輸出數:21 程序存儲器容量:40KB（20K x 16） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數據轉換器:A/D 6x12b 振蕩器型:內部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
發(fā)布緊急采購，3分鐘左右您將得到回復。