ELM310
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
Input low voltage
Input high voltage
Output low voltage
Output high voltage
Direction Input Setup Time (Tsu)
Hold Time (Th)
Step Pulse Width (Tp)
Delay Between Steps (Td)
- after a mode change (Td2)
Step Inhibit on Power-up
Minimum
3.0
0.05
Typical
5.0
Maximum Units
5.5
V
V/ms
Conditions
see note 2
V
DD
= 5V
see note 3
see note 3
Current (sink) = 8.7mA
Current (source) = 5.4mA
see notes 4 & 5
see note 4
see note 4
see note 4
see note 4
1.0
V
SS
0.85 V
DD
2.4
0.15 V
DD
V
DD
0.6
mA
V
V
V
V
V
DD
- 0.7
2
0
10
30
50
10
20
-
-
-
-
-
30
µsec
µsec
µsec
µsec
µsec
msec
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. This IC is uses CMOS technology so input currents to the logic are negligible. Each input does have internal
diode protection circuits, however, which may cause up to 1µA of leakage currents to flow.
4. Each of the values is graphically displayed in the Timing Diagrams on page 4.
5. During a mode change, the Dir input must remain stable for at least Tsu before any transition of Step.
ELM310DSB
Elm Electronics – Circuits for the Hobbyist
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