ELM327L
ELM327L Electrical Characteristics (continued)
The following values are for operation at 25°C, with VDD = 3.3V.
Characteristic
Minimum Typical Maximum Units
Conditions
Average current, IDD
normal
5.0
0.03
1.5
1.3
2.3
8
mA
mA
V
low power
Input logic levels
(Schmitt thresholds)
rising
falling
source
sink
2.6
All input pins use Schmitt trigger
waveshaping - see note 3
0.7
V
VO = 3.05V
see note 4
VO = 0.25V
Output current drive
mA
mA
The following values are for operation at 25°C, with VDD = 5.0V.
Characteristic
Minimum Typical Maximum Units
Conditions
5.5
Average current, IDD
normal
mA
mA
V
low power
0.13
2.1
1.8
3.3
11
Input logic levels
(Schmitt thresholds)
rising
falling
source
sink
4.0
All input pins use Schmitt trigger
waveshaping - see note 3
1.0
V
VO = 4.75V
see note 4
VO = 0.25V
Output current drive
mA
mA
Notes (cont’d):
3. The Microchip 18F25K80 documentation states that all of the inputs used by the ELM327L 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.
4. 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.
ELM327L DSA
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