ST7LITE20F2 ST7LITE25F2 ST7LITE29F2
Electrical characteristics
13.1.5
Pin input voltage
The input voltage measurement on a pin of the device is described in Figure 51.
Figure 51. Pin input voltage
ST7 PIN
VIN
13.2 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 57. Voltage characteristics
Symbol
Ratings
Maximum value
Unit
VDD - VSS
VIN
Supply voltage
Input voltage on any pin (1)
7.0
V
VSS- 0.3 to VDD+ 0.3
see Section 13.7.3:
VESD(HBM)
Electrostatic discharge voltage (Human Body Model)
Absolute maximum
ratings (Electrical
V
sensitivity)
1. Directly connecting the I/O pins to VDD or VSS could damage the device if an unexpected change of the I/O configuration
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: 10 kΩ for I/Os). Unused I/O pins must be tied in the same way to VDD or VSS
according to their reset configuration.
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.
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