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ELM329LP Datasheet(PDF) 8 Page - ELM Electronics |
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ELM329LP Datasheet(HTML) 8 Page - ELM Electronics |
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8 / 87 page  8 of 87 ELM329L DSA Elm Electronics – Circuits for the Hobbyist www.elmelectronics.com ELM329L ELM329L Electrical Characteristics (continued) Notes (cont’d): 4. The Microchip 18F25K80 documentation states that all of the inputs used by the ELM329L have Schmitt waveshaping on them. Sample testing however, has shown that pin 11 may respond as a standard ‘CMOS’ type input (ie not Schmitt) with a threshold voltage approximately equal to the average of the Schmitt thresholds. For this reason, circuit designs should not present slowly changing waveforms at pin 11. 5. This applies to all output pins, except pins 3 and 4. Although pins 3 and 4 may seem capable of similar currents, Microchip Technology states in their literature that these pins must not source or sink any more than 2 mA. The following values are for operation at 25°C, with VDD = 3.3V. The following values are for operation at 25°C, with VDD = 5.0V. Characteristic Minimum Typical Maximum Conditions Units 3.3 rising falling V V 2.1 1.8 All input pins use Schmitt trigger waveshaping - see note 4 1.0 4.0 11 Average current, IDD 5.5 mA 0.13 mA normal low power Output current drive mA mA source sink Input logic levels (Schmitt thresholds) see note 5 VO = 4.75V VO = 0.25V Characteristic Minimum Typical Maximum Conditions Units 2.3 rising falling V V 1.5 1.3 All input pins use Schmitt trigger waveshaping - see note 4 0.7 2.6 8 Average current, IDD mA mA normal low power Output current drive mA mA source sink Input logic levels (Schmitt thresholds) see note 5 VO = 3.05V VO = 0.25V 5.0 0.03 |
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