參數(shù)資料
型號(hào)： M37548G1FP
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(jī)
文件頁(yè)數(shù)： 55/73頁(yè)
文件大?。?/td> 1255K
代理商： M37548G1FP
Rev.2.00
REJ03B0210-0200
Mar 15, 2007
Page 55 of 70
7548 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
2. Connection of bypass capacitor across V
SS
line
and V
CC
line
Connect an approximately 0.1
μ
F bypass capacitor across the
V
SS
line and the V
CC
line as follows:
Connect a bypass capacitor across the V
SS
pin and the V
CC
pin at equal length.
Connect a bypass capacitor across the V
SS
pin and the V
CC
pin with the shortest possible wiring.
Use lines with a larger diameter than other signal lines for
V
SS
line and V
CC
line.
Connect the power source wiring via a bypass capacitor to
the V
SS
pin and the V
CC
pin.
Fig 74. Bypass capacitor across the V
SS
line and the
V
CC
line
3. Wiring to analog input pins
Connect an approximately 100
to 1 k
resistor to an
analog signal line which is connected to an analog input
pin in series.
Besides, connect the resistor to the microcomputer as close
as possible.
Connect an approximately 1000 pF capacitor across the
V
SS
pin and the analog input pin. Besides, connect the
capacitor to the V
SS
pin as close as possible. Also, connect
the capacitor across the analog input pin and the V
SS
pin at
equal length.
<Reason>
Signals which is input in an analog input pin (such as an A/D
converter/comparator input pin) are usually output signals from
sensor. The sensor which detects a change of event is installed
far from the printed circuit board with a microcomputer, the
wiring to an analog input pin is longer necessarily. This long
wiring functions as an antenna which feeds noise into the
microcomputer, which causes noise to an analog input pin.
Fig 75. Analog signal line and a resistor and a capacitor
The analog input pin is connected to the capacitor of a
voltage comparator. Accordingly, sufficient accuracy may
not be obtained by the charge/discharge current at the time
of A/D conversion when the analog signal source of high-
impedance is connected to an analog input pin. In order to
obtain the A/D conversion result stabilized more, please
lower the impedance of an analog signal source, or add the
smoothing capacitor to an analog input pin.
V
SS
V
CC
V
SS
V
CC
N.G.
O.K.
Noise
Thermistor
Analog
input pin
(Note)
N.G.
O.K.
V
SS
Note : The resistor is used for dividing
resistance with a thermistor.
Microcomputer
相關(guān)PDF資料
PDF描述
M37549G1FP 32K x 8 Static RAM; Density: 256 Kb; Organization: 32Kb x 8; Vcc (V): 4.5 to 5.5 V;
M38030F2L-XXXWG SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38122E7-XXXFS SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38232GC-XXXFP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38856F9-HP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37548G1-XXXFP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37548G2FP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37548G2-XXXFP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37548G3FP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37548G3FP#U0 功能描述:MCU 6K ROM 256K 20-SSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:96KB（96K x 8） 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 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:48-LQFP 包裝:托盤(pán) 其它名稱(chēng):568-9587
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

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

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*