ELM311
Absolute Maximum Ratings
Storage Temperature....................... -65°C to +150°C
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.
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)
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
3.0
5.0
5.5
V
V/ms
mA
V
see note 2
VDD = 5V
0.05
Average Supply Current, IDD
Input low voltage
1.0
2.4
0.15 VDD
VDD
see note 3
see note 3
VSS
Input high voltage
Output low voltage
Output high voltage
0.85 VDD
V
0.6
V
Current (sink) = 8.7mA
VDD - 0.7
V
Current (source) = 5.4mA
Direction Input Setup Time (Tsu)
Hold Time (Th)
see note 4
see note 4
-
-
µsec
µsec
2
0
see note 4
see note 4
see note 5
Step Pulse Width (Tp)
Delay Between Steps (Td)
Step Inhibit on Power-up
Notes:
-
µsec
µsec
msec
10
30
10
-
20
30
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. Operation of the ELM311 is completely static, so there is no maximum time for any of these parameters.
Each of the values is graphically displayed in Figure 1 on page 4.
5. The Step input will initially be blocked for this time, to allow external circuits time to stabilize.
3 of 5
ELM311DSB
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