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ST72324BJ2 Datasheet(PDF) 138 Page - STMicroelectronics |
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ST72324BJ2 Datasheet(HTML) 138 Page - STMicroelectronics |
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138 / 188 page  Electrical characteristics ST72324B 138/188 12.2.2 Current characteristics 12.2.3 Thermal characteristics Table 83. Current characteristics Symbol Ratings Max value Unit IVDD Total current into VDD power lines (source) (1) 1. All power (VDD) and ground (VSS) lines must always be connected to the external supply. 32-pin devices 75 mA 44-pin devices 150 IVSS Total current out of VSS ground lines (sink) (1) 32-pin devices 75 44-pin devices 150 IIO Output current sunk by any standard I/O and control pin 20 Output current sunk by any high sink I/O pin 40 Output current source by any I/Os and control pin - 25 IINJ(PIN) (2)(3) 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. 3. Negative injection degrades the analog performance of the device. See note in Section 12.13.3: ADC accuracy on page 166. If the current injection limits given in Table 105: General characteristics on page 153 are exceeded, general device malfunction may result. Injected current on VPP pin ± 5 Injected current on RESET pin ± 5 Injected current on OSC1 and OSC2 pins ± 5 Injected current on ROM and 32 Kbyte Flash devices PB0 pin ± 5 Injected current on 8/16 Kbyte Flash devices PB0 pin + 5 Injected current on any other pin(4)(5) 4. When several inputs are submitted to a current injection, the maximum SIINJ(PIN) is the absolute sum of the positive and negative injected currents (instantaneous values). These results are based on characterization with SIINJ(PIN) maximum current injection on four I/O port pins of the device. 5. True open drain I/O port pins do not accept positive injection. ± 5 ΣIINJ(PIN)(2) Total injected current (sum of all I/O and control pins)(4) ± 25 Table 84. Thermal characteristics Symbol Ratings Value Unit TSTG Storage temperature range -65 to +150 °C TJ Maximum junction temperature (see Section 13.5: Thermal characteristics) |
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