- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄359054 > M34559G6 (Renesas Technology Corp.) SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號(hào)： | M34559G6 |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片4位微機(jī)的CMOS |
| 文件頁(yè)數(shù)： | 73/148頁(yè) |
| 文件大?。?/td> | 1732K |
| 代理商： | M34559G6 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)當(dāng)前第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)
Rev.1.04
REJ03B0188-0104
Aug 23, 2007
Page 73 of 146
4559 Group
(2) Connection of bypass capacitor across V
SS
line
and V
DD
line
Connect an approximately 0.1
μ
F bypass capacitor across the
V
SS
line and the V
DD
line as follows:
Connect a bypass capacitor across the V
SS
pin and the V
DD
pin
at equal length.
Connect a bypass capacitor across the V
SS
pin and the V
DD
pin
with the shortest possible wiring.
Use lines with a larger diameter than other signal lines for V
SS
line and V
DD
line.
Connect the power source wiring via a bypass capacitor to the
V
SS
pin and the V
DD
pin.
Fig 77. Bypass capacitor across the V
SS
line and the
V
DD
line
(3) Oscillator concerns
Take care to prevent an oscillator that generates clocks for a
microcomputer operation from being affected by other signals.
(1) Keeping oscillator away from large current signal lines
Install a microcomputer (and especially an oscillator) as far
as possible from signal lines where a current larger than the
tolerance of current value flows.
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.
Fig 78. Wiring for a large current signal line
(2) 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.
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 waveforms may be deformed, which causes a
microcomputer failure or a program runaway.
Fig 79. Wiring to a signal line where potential levels
change frequently
(3) Oscillator protection using V
SS
pattern
As for a two-sided printed circuit board, print a V
SS
pattern
on the underside (soldering side) of the position (on the
component side) where an oscillator is mounted.
Connect the V
SS
pattern to the microcomputer V
SS
pin with
the shortest possible wiring.
Besides, separate this V
SS
pattern from other V
SS
patterns.
Fig 80. V
SS
pattern on the underside of an oscillator
V
SS
V
DD
V
SS
V
DD
N.G.
O.K.
X
IN
X
OUT
V
SS
M
Microcomputer
Mutual inductance
Large
current
GND
X
IN
X
OUT
V
SS
CNTR
Do not cross
N.G.
Oscillator wiring
pattern example
An example of V
SS
patterns on the
underside of a printed circuit board
Separate the V
SS
line for oscillation from other V
SS
lines
X
IN
X
OUT
V
SS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34571G4 | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3488Q1 | 256 x 256 DIGITAL SWITCHING MATRIX |
| M3488 | 256 x 256 DIGITAL SWITCHING MATRIX |
| M3488B1 | 256 x 256 DIGITAL SWITCHING MATRIX |
| M3493B2 | CMOS 12 X 8 CROSSPOINTWITH CONTROL MEMORY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34559G6FP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34559G6-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AG8FP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AG8-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AGCFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。