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参数资料
| 型号： | MB90549GPFV |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | PLASTIC, LQFP-100 |
| 文件页数： | 11/67页 |
| 文件大小： | 746K |
| 代理商： | MB90549GPFV |
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MB90540/540G/545/545G Series
19
(12) Indeterminate outputs from ports 0 and 1 (MB90F543/F549/V540/V540G only)
During oscillation setting time of step-down circuit (during a power-on reset) after the power is turned on, the
outputs from ports 0 and 1 become following state.
If RST pin is “H”, the outputs become indeterminate.
If RST pin is “L”, the outputs become high-impedance.
Pay attention to the port output timing shown as follow.
Oscillation setting time*2
Power-on reset*1
Period of indeterminated
VCC (Power-supply pin)
PONR (power-on reset) signal
RST (external asynchronous reset) signal
RST (internal reset) signal
Oscillation clock signal
KA (internal operation clock A) signal
KB (internal operation clock B) signal
PORT (port output) signal
*1 : Power-on reset time : Period of “clock frequency
× 217” (Clock frequency of 16 MHz : 8.19 ms)
*2 : Oscillation setting time : Period of “clock frequency
× 218” (Clock frequency of 16 MHz : 16.38 ms)
RST pin is “H”
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MB90549GS | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90549GSPF | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90549GSPFV | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90550A | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90550A_08 | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
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