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| 型号： | M37512FCHP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件页数： | 80/89页 |
| 文件大小： | 877K |
| 代理商： | M37512FCHP |
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Feb 18, 2005
page 79 of 85
REJ03B0122-0101
7512 Group
8016
C016
Oscillation frequency
High-speed RC oscillator frequency set up register
Table 26 High-speed RC oscillation circuit electrical characteristics
(VCC = AVCC = 2.5V±2%, VSS =AVSS = 0V, Ta = –20 to 85 °C, unless otherwise noted)
Limits
Parameter
Min.
Typ.
Max.
Symbol
Unit
Test conditions
Oscillating frequency ajustment width (Note)
Oscillating frequency shift by temperature
f(XIN)=4 to 5 MHZ
0.2
±3.0
0.5
%
%/°C
f4MRC
f4MRCS
Table 27 32kHz RC oscillation circuit electrical characteristics
(VCC = AVCC = 2.5V±2%, VSS =AVSS = 0V, Ta = –20 to 85 °C, unless otherwise noted)
Limits
Parameter
Min.
Typ.
Max.
Symbol
Unit
Test conditions
External registor, and capacitor tolerance
Oscillating frequency adjustment resolution
Oscillating frequency shift by VCC voltage
Oscillating frequency shift by temperature
Oscillating frequency shift by VCC voltage
and temperature
Total tolerance of the resistor and capacitor
when External registor=91k
when External capacitor=100pF
Ta=25 °C
VCC=AVCC=2.5V, –20 to 85 °C
0.5
10
0.07
2
%
kHz
%
–
Fig. 78 High-speed RC oscillation circuit
register value - Oscillating frequency characteristics
Notes : The bigger setting value of the high-speed RC oscillator frequency set up register (address 0FF216) makes the oscillating frequency of the high-
speed RC oscillation circuit lower. However, since the oscillating frequency is set higher when setting the values from 7F16 to 8016 or from BF16 to
C016, be careful of frequency adjustment by software.
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相关代理商/技术参数 |
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|---|---|
| M37512FCH-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FC-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M-375-1-342 | 制造商:Brady Corporation 功能描述:WIRE MARKER SLEEVES, HEAT-SHRINK, 1.015"W, 80; Marker Material:PO (Polyolefin); Marker Dimensions:16.38mm x 25.78mm; Legend:Blank (No Legend); Legend Color:Black; Background Color:White; Color:Black on White; Series:M ;RoHS Compliant: Yes |
| M37513E1-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37513E2-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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