WM_PRJ_M13_UGD_001 - 001
20th July 2004
© 2004
All rights reserved
Wavecom Confidential & Proprietary Information
Page:
48
/
55
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
8.2.3 General Purpose Input/output
Both digital GPIO4 and GPIO5 comply with 3 Volts CMOS.
Table 11: Operating conditions
Parameter
I/O type
Min
Max
Condition
V
IL
CMOS
-0.5 V
0.8 V
V
IH
CMOS
2.1 V
3.0 V
V
OL
2X
0.2
V I
OL
= -2 mA
V
OH
2X 2.6
V
I
OH
= 2 mA
8.2.4 SIM interface
Table 12: SIM card characteristics
SIM card
3 V only
8.2.5 RESET Signal
Table 13: Electrical characteristics
Parameter
Min
Max
Unit
Input Impedance ( R )
4.7
k
Ω
Input Impedance ( C )
10
nF
Table 14: Operating conditions
Parameter
Min
Max
Condition
*V
T-
1.1 V
1.2 V
*V
T+
1.7 V
1.9 V
V
OL
0.4
V
I
OL
= -50 µA
V
OH
2.0
V
I
OH
= 50 µA
* V
T-,
V
T+ :
Hysteresis thresholds
