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參數(shù)資料
| 型號(hào)： | M37549G2-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO24 |
| 封裝： | 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24 |
| 文件頁(yè)數(shù)： | 14/86頁(yè) |
| 文件大?。?/td> | 1375K |
| 代理商： | M37549G2-XXXFP |
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Rev.2.02
Mar 31, 2009
Page 19 of 81
REJ03B0202-0202
7549 Group
Termination of unused pins
Termination of common pins
I/O ports:
Select an input port or an output port and follow
each processing method.
Output ports: Open.
Input ports:
If the input level become unstable, through current
flow to an input circuit, and the power supply
current may increase.
Especially, when expecting low consumption
current (at STP or WIT instruction execution etc.),
pull-up or pull-down input ports to prevent
through current (built-in resistor can be used).
We recommend processing unused pins through a
resistor which can secure IOH (avg) or IOL (avg).
Because, when an I/O port or a pin which have an
output function is selected as an input port, it may
operate as an output port by incorrect operation
etc.
Table 7
Termination of unused pins
Pin
Termination
P00/INT0
Perform termination of I/O port.
P01/INT1
P02
P03
P04/RXD
P05/TXD
P06/SCLK
P07/SRDY
P10/AN0/KEY0/CMP0
P11/AN1/KEY1/CMP1
P12/AN2/KEY2/CMP2
P13/AN3/KEY3/T2OUT
P14/AN4/KEY4
P15/AN5/KEY5
P16/AN6/KEY6
P17/AN7/KEY7
P20/XOUT/XCOUT
Set the direction register to “1”,
and perform termination of output
port.
P21/XIN/XCIN
Perform termination of I/O port.
P30
P31
RESET
To use the built-in power-on reset
circuit, leave the RESET pin open.
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| M37560M8-XXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP100 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37549G3FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G3-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549RLSS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37560E1D-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37560E1D-XXXFS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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