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參數(shù)資料
| 型號： | MB90634A |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-Bit Proprietary Microcontroller(16位專用微控制器) |
| 中文描述： | 16位微控制器專利（16位專用微控制器） |
| 文件頁數(shù)： | 14/107頁 |
| 文件大小： | 999K |
| 代理商： | MB90634A |
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14
MB90630A Series
I
HANDLING DEVICES
1. Preventing Latch-up
Latch-up occurs in a CMOS IC if a voltage greater than V
or if the voltage applied between V
increases rapidly resulting in thermal damage to circuit elements. Therefore, ensure that maximum ratings are
not exceeded in circuit operation.
For the same reason, also ensure that the analog supply voltage does not exceed the digital supply voltage.
CC
or less than V
SS
is applied to an input or output pin
CC
and V
SS
exceeds the rating. If latch-up occurs, the power supply current
2. Treatment of Unused Pins
Leaving unused input pins unconnected can cause misoperation. Always pull-up or pull-down unused pins.
3. External Reset Input
To reliably reset the controller by inputting an “L” level to the RST pin, ensure that the “L” level is applied for at
least five machine cycles. Take particular note when using an external clock input.
4. V
CC
and V
SS
Pins
Ensure that all V
CC
pins are at the same voltage. The same applies for the V
SS
pins.
5. Precautions when Using an External Clock
Drive the X0 pin only when using an external clock.
6. A/D Converter Power Supply and the Turn-on Sequence for Analog Inputs
Always turn off the A/D converter power supply (AV
CC
, AVRH, AVRL) and analog inputs (AN0 to AN7) before
turning off the digital power supply (V
CC
).
When turning the power on or off, ensure that AVRH does not exceed AV
CC
.
Also, when using the analog input pins as input ports, ensure that the input voltage does not exceed AV
CC
.
7. Program Mode
All bits (64 K
×
16 bits) in the MB90P634A are “1” on delivery from Fujitsu or after erasing. To write data, selectively
program the desired bits to “0”. The value “1” cannot be written electrically.
X1
MB90630A
Using an external clock
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90641A | 16-bit Proprietary Microcontroller |
| MB90P641A | 16-bit Proprietary Microcontroller |
| MB90P641APF | 16-bit Proprietary Microcontroller |
| MB90P641APFV | 16-bit Proprietary Microcontroller |
| MB90641APF | 16-bit Proprietary Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90634APF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90634APFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90641A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90641APF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90641APFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
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