Data Sheet

INTERFACES
DIGITAL IO CHARACTERISTICS
GM02S DATASHEET (PRELIMINARY) PROPRIETARY 21
SEQUANS Communications
2.12 Digital IO Characteristics
The voltage and current characteristics of the various IO pads of the GM02S
versus IO bank supply voltage are illustrated in the tables below.
Caution: The PCB designer must ensure that the voltage on these pads
never exceeds V
ih
of the power group to which they belong.
See Table 2-15 for digital IO characteristics of the different IO pads. Refer to
each interface of GM02S in chapter Interfaces to know the power group and
IO pad type for each pad. Note that IN pads are inputs only whereas BIDIR
can be both inputs and output.
Table 2-15: DC Characteristics for Digital IOs, Voltage 1.8 V
Symbol Minimum Maximum Unit
V
IH
Input HIGH level, PVDD_1V8 I/O pins
1.26 3.3 V
V
IH
Input HIGH level, PMU_5V I/O pins
0.8 VBAT + 0.6 (max 5.5) V
V
IL
Input LOW level, PVDD_1V8 I/O pins
00.54 V
V
IL
Input LOW level, PMU_5V I/O pins
00.2 V
V
OH
Output HIGH voltage
1.44 1.8 V
V
OL
Output LOW voltage
00.36 V
I
RPU
Input pull-up resistor current
15 µA
R
RPU
Input pull-up resistance
32.4 kOhm
I
RPD
Input pull-down resistor current
15
R
RPD
Input pull-down resistance
32.4 kOhm
V
H
Input hysteresis
0.18 V