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參數(shù)資料
| 型號： | ST7DALI |
| 廠商： | 意法半導體 |
| 元件分類： | ADC |
| 英文描述： | 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI |
| 中文描述： | 8位單電壓閃存存儲器，數(shù)據(jù)EEPROM，模數(shù)轉換器，定時器，SPI和大理微控制器 |
| 文件頁數(shù)： | 101/141頁 |
| 文件大小： | 2175K |
| 代理商： | ST7DALI |
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ST7DALI
101/141
13.2 ABSOLUTE MAXIMUM RATINGS
Stresses above those listed as “absolute maxi-
mum ratings” may cause permanent damage to
the device. This is a stress rating only and func-
tional operation of the device under these condi-
13.2.1 Voltage Characteristics
tions is not implied. Exposure to maximum rating
conditions for extended periods may affect device
reliability.
13.2.2 Current Characteristics
13.2.3 Thermal Characteristics
Notes:
1. Directly connecting the I/O pins to V
or V
could damage the device if an unexpected change of the I/O configura-
tion occurs (for example, due to a corrupted program counter). To guarantee safe operation, this connection has to be
done through a pull-up or pull-down resistor (typical: 10k
for I/Os). Unused I/O pins must be tied in the same way to V
DD
or V
SS
according to their reset configuration.
2. I
must never be exceeded. This is implicitly insured if V
IN
maximum is respected. If V
maximum cannot be
respected, the injection current must be limited externally to the I
value. A positive injection is induced by V
>V
while a negative injection is induced by V
<V
. For true open-drain pads, there is no positive injection current, and the
corresponding V
IN
maximum must always be respected
3. All power (V
DD
) and ground (V
SS
) lines must always be connected to the external supply.
4. Negative injection disturbs the analog performance of the device. In particular, it induces leakage currents throughout
the device including the analog inputs. To avoid undesirable effects on the analog functions, care must be taken:
- Analog input pins must have a negative injection less than 0.8 mA (assuming that the impedance of the analog voltage
is lower than the specified limits)
- Pure digital pins must have a negative injection less than 1.6mA. In addition, it is recommended to inject the current as
far as possible from the analog input pins.
5. No negative current injection allowed on PB0 and PB1 pins.
6. When several inputs are submitted to a current injection, the maximum
Σ
I
is the absolute sum of the positive
and negative injected currents (instantaneous values). These results are based on characterisation with
Σ
I
INJ(PIN)
maxi-
mum current injection on four I/O port pins of the device.
Symbol
Ratings
Maximum value
Unit
V
DD
- V
SS
V
IN
Supply voltage
Input voltage on any pin
1) & 2)
7.0
V
V
SS
-0.3 to V
DD
+0.3
see
section 13.7.3 on
page 113
V
ESD(HBM)
Electrostatic discharge voltage (Human Body Model)
V
Symbol
Ratings
Maximum value
Unit
I
VDD
I
VSS
Total current into V
DD
power lines (source)
3)
Total current out of V
SS
ground lines (sink)
3)
Output current sunk by any standard I/O and control pin
Output current sunk by any high sink I/O pin
Output current source by any I/Os and control pin
Injected current on RESET pin
Injected current on OSC1 and OSC2 pins
Injected current on PB0 and PB1 pins
5)
Injected current on any other pin
6)
Total injected current (sum of all I/O and control pins)
6)
100
100
25
50
- 25
± 5
± 5
+5
± 5
± 20
mA
I
IO
I
INJ(PIN) 2) & 4)
Σ
I
INJ(PIN) 2)
Symbol
Ratings
Value
Unit
T
STG
Storage temperature range
Maximum junction temperature (see Table 22, “THERMAL CHARACTERISTICS,” on
page 128)
-65 to +150
°C
T
J
1
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