參數(shù)資料
型號: MB90623A
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): 12/82頁
文件大?。?/td> 797K
代理商: MB90623A
MB90620A Series
12
I
HANDLING DEVICES
1. Preventing Latchup
Latchup may occur on CMOS ICs if voltage higher than V
pins other than medium- and high voltage pins or if higher than the voltage is applied between V
CC
or lower than V
SS
is applied to the input and output
CC
and V
SS
.
When latchup occurs, power supply current increases rapidly and might thermally damage elements. When
using, take great care not to exceed the absolute maximum ratings.
2. Treatment of Unused Pins
Leaving unused input pins open could cause malfunctions. They should be connected to a pull-up or pull-down
resistors.
3. External Reset Input
To reset the internal circuit by the Low-level input to the RST pin, the Low-level input to the RST pin must be
maintained for at least five machine cycles. Pay attention to it if the chip uses external clock input.
4. V
CC
and V
SS
Pins
Apply equal potential to the V
CC
and V
SS
pins.
5. Precautions when Using an External Clock
When an external clock is used, drive X0 pin.
6. Power-on Sequence for A/D Converter Power Supplies and Analog Inputs
Be sure to turn on the digital power supply (V
CC
) before applying voltage to the A/D converter power supplies
(AV
CC
, AVRH, and AVRL) and analog inputs (AN0 to AN15).
In addition, when the power is turned off, turn off the A/D converter power supplies (AV
CC
, AVRH, and AVRL)
and analog inputs (AN0 to AN15) first, then the digital power supply (AV
CC
).
Whether applying or cutting off the power, be certain that AVRH does not exceed AV
CC
.
7. Pin set when turning on power supplies
In the MB90P623, all of the bits (48 K
×
8 bits) are set to “1” when the IC is shipped from Fujitsu and after
erasure. To input data, program, the IC by selectively setting the desired bits to “0”. Bits cannot be set to “1”
electrically.
X0, (X0A)
X1, (X1A)
MB90620A
Using of External Clock
相關(guān)PDF資料
PDF描述
MB90622PFV 9-Bit Bus-Interface D-type Latches With 3-State Outputs 28-LCCC -55 to 125
MB90P623A 16-bit Proprietary Microcontroller
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MB90623PFV 9-Bit Bus-Interface D-type Latches With 3-State Outputs 24-CDIP -55 to 125
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB90623PFV 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90632A 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90632APF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90632APFV 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90634A 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller