STC micro STC8A8K64D4 Series - Appendix Q Electrical Characteristics; Absolute Maximum Rating

STC8A8K64D4 Series Manual
- 872 -
Appendix Q Electrical Characteristics
Q.1 Absolute Maximum Rating
Parameters
Minimum
Maximum
UNIT
Description
Storage temperature
-55
+125
℃
Operating temperature
-40
+85
℃
If the operating temperature is higher than
85°C (such as around 125°C), due to the large
temperature drift of the internal IRC clock
frequency at high temperature, it is
recommended to use an external high
temperature clock or crystal oscillator. In
addition, when the temperature is high, the
frequency does not run fast, and it is
recommended to use a working frequency
below 24M; if the system must run at a higher
temperature, please use an external high-
reliability low-frequency active clock.
If the working temperature is around -55°C,
the working voltage should not be too low. It
is strongly recommended that the MCU-VCC
voltage should not be lower than 3.0V. In
addition, the rising speed of the power supply
must also be as fast as possible, preferably at
the millisecond level.
Operating Voltage
1.9
5.5
V
VDD to ground voltage
-0.3
+5.5
V
I/O port to ground voltage
-0.3
VDD+0.3
V
Q.2 DC ELECTRICAL CHARACTERISTICS (3.3V)
(VSS=0V, VDD=3.3V, test temperature =25℃)
Symbol
Parameter
Limits
Test Conditions
MIN
TYP
MAX
UNIT
I
PD
Power-down mode current
-
0.4
-
uA
I
WKT
Power-down Wake-up timer
-
1.5
-
uA
I
LVD
Low-voltage detection module
-
10
-
uA
ICMP
Comparator power consumption
-
90
-
uA
I
IDL
Idle mode current (internal 32KHz)
-
0.48
-
mA
Equivalent to 0.5M of
traditional 8051
Idle mode current (6MHz)
-
0.88
-
mA
Equivalent to 79M of
traditional 8051
Idle mode current (12MHz)
-
1.0
-
mA
Equivalent to 158M of
traditional 8051
Idle mode current (24MHz)
-
1.16
-
mA
Equivalent to 317M of
traditional 8051