STM8S105C4 datasheet(53/121 Pages) STMICROELECTRONICS

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STM8S105x4/6

Electrical characteristics

10.2

Absolute maximum ratings

Stresses above those listed as ‘absolute maximum ratings’ may cause permanent damage

to the device. This is a stress rating only and functional operation of the device under these

conditions is not implied. Exposure to maximum rating conditions for extended periods may

affect device reliability.

Table 15. Voltage characteristics

Symbol

Ratings

Min

Max

Unit

VDDx - VSS

Supply voltage (including VDDA and VDDIO)(1)

1. All power (VDD) and ground (VSS) pins must always be connected to the external power supply

-0.3

6.5

VIN

Input voltage on true open drain pins (PE1, PE2)(2)

2. IINJ(PIN) must never be exceeded. This is implicitly insured if VIN maximum is respected. If VIN maximum

cannot be respected, the injection current must be limited externally to the IINJ(PIN) value. A positive

injection is induced by VIN > VDD while a negative injection is induced by VIN < VSS. For true open-drain

pads, there is no positive injection current, and the corresponding VIN maximum must always be respected

VSS - 0.3

6.5

Input voltage on any other pin(2)

VSS - 0.3

VDD + 0.3

|VDDx - VDD| Variations between different power pins

|VSSx - VSS| Variations between all the different ground pins

VESD

Electrostatic discharge voltage

see Absolute maximum ratings

(electrical sensitivity) on

page 89

Table 16. Current characteristics

Symbol

Ratings

Max.(1)

1. Data based on characterization results, not tested in production.

Unit

IVDD

Total current into VDD power lines (source)(2)

2. All power (VDD, VDDIO, VDDA) and ground (VSS, VSSIO, VSSA) pins must always be connected to the external

supply.

100

IVSS

Total current out of VSS ground lines (sink)(1)

IIO

Output current sunk by any I/O and control pin

Output current source by any I/Os and control pin

-20

ΣIIO

Total output current sourced (sum of all I/O and control pins)

for devices with two VDDIO pins(3)

200

Total output current sourced (sum of all I/O and control pins)

for devices with one VDDIO pin(3)

100

Total output current sunk (sum of all I/O and control pins) for

devices with two VSSIO pins(3)

160

Total output current sunk (sum of all I/O and control pins) for

devices with one VSSIO pin(3)

IINJ(PIN) (4) (5)

Injected current on NRST pin

±4

Injected current on OSCIN pin

±4

Injected current on any other pin(6)

±4

ΣIINJ(PIN)(4)

Total injected current (sum of all I/O and control pins)(6)

±20

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