Reset; Electrical Characteristics; Reset Timing; Electrical Characteristics Of The Reset Signal - Sierra Wireless WISMO228 Product Technical Specification & Customer Design Manuallines

Reset

The ~RESET pin is a hardware reset and should only be used for emergency resets. It has a 100KΩ
internal pull up resistor to VCC_2V8.
To activate the «emergency» reset sequence, the ~RESET signal has to be set to LOW level manually.
This can be done by using a push button, for example.

Electrical Characteristics

The following table describes the electrical characteristics of the ~RESET signal.
Parameters
Input Impedance ( R )*
Input Impedance (C)
Cancellation time (Ta) at power up only
VH**
VIL
VIH
* Internal pull up resistance
** VH : Hysterisis Voltage
WA_DEV_W228_PTS_002
Figure 42. Reset Timing
Table 38. Electrical Characteristics of the Reset Signal
Rev 001
Product Technical Specification &
Customer Design Guidelines
Minimum Typical
- 100K
- 10nF
- 38
1.57 -
- 0
1.96 2.8
Maximum Unit
Ω
-
F
- ms
- V
1.2 V
-- V
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