mb95r203a Fujitsu Microelectronics, Inc., mb95r203a Datasheet - Page 10
mb95r203a
Manufacturer Part Number
mb95r203a
Description
8-bit Proprietary Microcontrollers
Manufacturer
Fujitsu Microelectronics, Inc.
Datasheet
1.MB95R203A.pdf
(48 pages)
- Current page: 10 of 48
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MB95R203A
10
■ NOTES ON DEVICE HANDLING
• Preventing Latch-up
• Stable Supply Voltage
• Precautions for Use of External Clock
• Do not use a sample used in program development as mass-produced product.
Care must be taken to ensure that maximum voltage ratings are not exceeded when they are used.
Latch-up may occur on CMOS ICs if voltage higher than V
other than medium- and high-withstand voltage pins or if higher than the rating voltage is applied between V
pin and V
When latch-up occurs, power supply current increases rapidly and might thermally damage elements.
Supply voltage should be stabilized.
A sudden change in power-supply voltage may cause a malfunction even within the guaranteed operating range
of the Vcc power-supply voltage.
For stabilization, in principle, keep the variation in Vcc ripple (p-p value) in a commercial frequency range
transient variation rate does not exceed 0.1 V/ms during a momentary change such as when the power supply
is switched.
Even when an external clock is used, oscillation stabilization wait time is required for power-on reset, wake-up
from sub clock mode or stop mode.
(50 Hz / 60 Hz) not to exceed 10% of the standard Vcc value and suppress the voltage variation so that the
SS
pin.
CC
or lower than V
SS
is applied to input and output pins
DS07-12630-1E
CC
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