Wi-Fi Module Developer's Guide

Chapter 3: Electrical and Environmental Specifications
May 31, 2008 Module Hardware Description 37
Table 3-3: Host Interface Specifications
Pin #
Signal
Name
Description I/O
Active
H/L
Internal
PU/PD
Parameter Conditions
Level
Min Typ Max Units
Power:
1
GND Ground
2
3
4
5
VCC DC power
supply
I
V
IN
I
MAX
I
OFF
VCC = 3.6 V
3.3 3.6 4.2 V
6 190 250 mA
7 10 100 µA
8
Control:
27 VREF Reference
regulator out-
put
OV
OUT
I
OUT
< 100mA 2.7 2.8 2.9 V
16 WKUPI_N W24 wakeup
input
I L 15K PU V
IH
V
IL
2.0
-0.3 0
3.15
0.8
V
26 WKUPO_
N
Host wakeup
output
O L 15K PU V
OH
V
OL
I
OUT
< 8 mA 2.75
0.4
V
25 RESET_N W24 Ready
indication
output
O L 15K PU V
OH
V
OL
I
OUT
< 8 mA 2.75
0.4
V
53 ON_N On/Off switch I L 100K
PU
V
OH
V
OL
2
0.4
V
51 IGN Ignition input I H 80K PD V
IH
V
IL
V
39 TXEN_N Transmit indi-
cator
O L 15K PU V
OH
V
OL
I
OUT
< 8 mA 2.75
0.4
V
41 ANT_DET Antenna pres-
ence indicator
O H 15K PU V
OH
V
OL
I
OUT
< 8 mA 2.75
0.4
V
49 GPRS GPRS/
EGPRS cov-
erage indica-
tor
O L 15K PU V
OH
V
OL
I
OUT
< 8 mA 2.75
0.4
V