ELM440
Absolute Maximum Ratings
Storage Temperature....................... -65°C to +150°C
Ambient Temperature with
Power Applied....................................-40°C to +85°C
Voltage on V
DD
with respect to V
SS
............ 0 to +7.5V
Voltage on any other pin with
respect to V
SS
........................... -0.6V to (V
DD
+ 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
Supply Voltage, V
DD
V
DD
rate of rise
Average Supply Current, I
DD
Minimum
3.0
0.05
Typical
5.0
Maximum Units
5.5
V
V/ms
Conditions
see note 2
V
DD
= 5V
V
DD
= 3V
see note 3
0.60
0.35
2.4
2.4
600
0.15 V
DD
V
DD
+ 0.5
0.6
mA
mA
KΩ
V
V
mA
V
V
Reset pin internal pullup resistance
Input low voltage
Input high voltage
Input current
Output low voltage
Output high voltage
Output Duty Cycle
300
V
SS
0.85 V
DD
- 0.5
470
sync input only, see note 4
Current (sink) = 8.7mA
Current (source) = 5.4mA
any output
V
DD
- 0.7
50
%
Notes:
1. This integrated circuit is produced with a Microchip Technology Inc.’s PIC12C5XX 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. The value of the pullup resistance is supply and temperature dependent.
4. This specification represents current flowing through the protection diodes when applying large voltages to
the sync input (pin 5) through a current limiting resistance. Currents quoted are the maximum continuous.
ELM440DSB
Elm Electronics – Circuits for the Hobbyist
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