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參數(shù)資料
| 型號： | M37512F8H-XXXHP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 47/87頁 |
| 文件大?。?/td> | 879K |
| 代理商： | M37512F8H-XXXHP |
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Feb 18, 2005
page 51 of 85
REJ03B0122-0101
7512 Group
RESET CIRCUIT
To reset the microcomputer, RESET pin must be held at an "L"
level for 20 XIN cycles or more. Then the RESET pin is returned to
an "H" level (the power source voltage must be between 2.45 V
and 2.55 V, and the oscillation must be stable), reset is released.
After the reset is completed, the program starts from the address
contained in address FFFD16 (high-order byte) and address
FFFC16 (low-order byte). Make sure that the reset input voltage is
less than 0.49 V for VCC of 2.45 V.
Fig. 57 Reset sequence
Fig. 56 Reset circuit example
RESET
Internal
reset
Data
φ
Address
SYNC
XIN: 10.5 to 18.5 clock cycles
XIN
?
FFFC
FFFD
ADH,L
?
ADL
ADH
1: The frequency relation of f(XIN) and f(
φ) is f(XIN)=8 f(φ).
2: The question marks (?) indicate an undefined state that depends on the previous state.
Reset address from the vector table.
Notes
(Note)
0.2VCC
0V
Poweron
VCC
RESET
VCC
RESET
Power source
voltage detection
circuit
Power source
voltage
Reset input
voltage
Note : Reset release voltage ; Vcc=2.45 V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37512FCH-XXXHP | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| M37512F8HHP | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| M37513M8-XXXHP | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100 |
| M37513EFFS | 8-BIT, UVPROM, 4 MHz, MICROCONTROLLER, CQCC100 |
| M37513EFHP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37512F8-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FCHHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FCHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FCH-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FC-XXXHP | 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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