Gemalto M2M GmbH MC56 User Manual

Page of 104
MC55/56 Hardware Interface Description 
Confidential / Preliminary 
s
 
MC55/56_hd_v03.00 
Page 74 of 104 
16.08.2005 
5.3 
Electrical specifications of the application interface 
Please note that the reference voltages listed in Table 26 are the values measured directly 
on the MC55/56 module. They do not apply to the accessories connected.  
If an input pin is specified for V
i,h,max 
= 3.3V, be sure never to exceed the stated voltage. The 
value 3.3V is an absolute maximum rating.  
The Hirose DF12C board-to-board connector on MC55/56 is a 50-pin double-row receptacle. 
The names and the positions of the pins can be seen from Figure 34 which shows the top 
view of MC55/56. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 34: Pin assignment (top view on MC55/56) 
BATT+  
GND 
BATT+  
GND 
BATT+  
GND 
BATT+  
GND 
BATT+  
GND 
VDD  CHARGE 
/RING0   POWER 
/DSR0   VDDLP 
/RTS0   /TXD0 
/DTR0   /TXD1 
/RTS1   /RXD0 
/CTS0   /RXD1 
/CTS1   SYNC 
/DCD0  
BATT_TEMP 
/EMERGOFF  
RFSDAI 
/IGT  TXDDAI 
GND   SCLK 
MICN1   TFSDAI 
MICP1   RXDDAI 
MICP2   CCGND 
MICN2  
CCIN 
EPN1   CCRST 
EPP1   CCIO 
EPP2   CCVCC 
EPN2   CCCLK 
 
26
50
25
1