< http://www.elmelectronics.com/ >ELM310
Electrical Characteristics
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.
3 of 5
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
Conditions
Units
Supply Voltage, V
DD
3.0
5.0
5.5
V
V
DD
rate of rise
0.05
V/ms
Average Supply Current, I
DD
1.0
2.4
mA
V
DD
= 5V
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.
Input low voltage
V
SS
0.15 V
DD
V
Input high voltage
V
DD
V
0.85 V
DD
Output low voltage
0.6
V
Output high voltage
V
V
DD
- 0.7
Current (sink) = 8.7mA
Current (source) = 5.4mA
see note 2
ELM310DSB
Delay Between Steps (Td)
- after a mode change (Td2)
Step Pulse Width (Tp)
μsec
10
-
μsec
μsec
30
50
-
-
see note 4
see note 4
see note 4
μsec
μsec
2
0
-
-
Direction Input Setup Time (Tsu)
Hold Time (Th)
see notes 4 & 5
see note 4
see note 3
see note 3
Step Inhibit on Power-up
10
20
30
msec