ELM409 View Datasheet(PDF) - Elm Electronics
Part Name
Description
Manufacturer
ELM409 Datasheet PDF : 8 Pages
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ELM409
Absolute Maximum Ratings
Storage Temperature....................... -65°C to +150°C
Ambient Temperature with
Power Applied....................................-40°C to +85°C
Voltage on VDD with respect to VSS............ 0 to +7.5V
Voltage on any other pin with
respect to VSS........................... -0.6V to (VDD + 0.6V)
Note:
Stresses beyond those listed here will likely damage
the device. These values are given as a design
guideline only. The ability to operate to these levels
is neither inferred nor recommended.
Electrical Characteristics
All values are for operation at 25°C and a 5V supply, unless otherwise noted. For further information, refer to note 1 below.
Characteristic
Minimum Typical Maximum Units
Conditions
Supply Voltage, VDD
VDD rate of rise
Average Supply Current, IDD
3.0
5.0
0.05
1.0
5.5
V
V/ms see note 2
2.4
mA see note 3
Input (pin 5)
Schmitt trigger
thresholds
rising
2.9
4.0
V VDD = 5.0V
falling
1.0
1.5
V
Input (pin 5)
Schmitt trigger
thresholds
rising
1.6
2.4
V VDD = 3.0V
falling
0.6
1.0
V
Output low voltage
0.3
V Current (sink) = 10 mA
Output high voltage
4.2
V Current (source) = 10 mA
Standard debounce time
25
msec see note 4
Long debounce time
500
msec see note 4
Output pulse width
50
msec see note 4
Notes:
1. This integrated circuit is produced using one of the Microchip Technology Inc.’s PIC12C5XX products as the
core embedded microcontroller. For further device specifications, and possibly clarification of those given,
please refer to the appropriate Microchip documentation.
2. This spec must be met in order to ensure that a correct power on reset occurs. It is quite easily achieved
using most common types of supplies, but may be violated if one uses a slowly varying supply voltage, as
may be obtained through direct connection to solar cells, or some charge pump circuits.
3. Device only. Does not include any current supplied to external circuits.
4. The ELM409 uses an internal RC oscillator for the timing. This oscillator typically maintains an accuracy of
2% over the allowed temperature and voltage range.
ELM409DSA
Elm Electronics – Circuits for the Hobbyist
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