Electrical characteristics

ST7GEME4

14/28

4.2

Recommended operating conditions

Table 5.

Thermal characteristics

Symbol

Ratings

Value

Unit

Package thermal resistance

VFQFPN24

42

°C/W

SO24

80

°C/W

Max. junction temperature

150

°C

Storage temperature range

-65 to +150

°C

Power dissipation

VFQFPN24

600

mW

SO24

500

mW

Table 6.

General operating conditions

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply voltage

4.0

5.5

V

External clock source

4

MHz

Ambient temperature range

0

70

°C

Table 7.

1.

When several inputs are submitted to a current injection, the maximum injected current is the sum of the

positive (resp. negative) currents (instantaneous values).

Symbol

Parameter

Conditions

Min Typ Max Unit

Total positive injected

2.

3.

20

mA

I/Os)

Total negative injected current

(4)(5)

4.

substrate of the die. The drawback is a small leakage (few µA) induced inside the die when a negative

injection is performed. This leakage is tolerated by the digital structure. The effect depends on the pin

which is submitted to the injection. Of course, external digital signals applied to the component must have

a maximum impedance close to 50k

Ω.

5.

Location of the negative current injection: Pure digital pins can tolerate 1.6mA. In addition, the best choice

is to inject the current as far as possible from the analog input pins.

Digital pins

20

mA

Analog pins