SIM900 Ver la hoja de datos (PDF) - Unspecified
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SIM900 Datasheet PDF : 58 Pages
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SIM900 Hardware Design
6.3 PIN Assignment of SIM900A
PWRKEY 1
PWRKEY_OUT 2
DTR 3
RI 4
DCD 5
DSR 6
CTS 7
RTS 8
TXD 9
RXD 10
DISP_CLK 11
DISP_DATA 12
DISP_D/C 13
DISP_CS 14
VDD_EXT 15
NRESET 16
GND 17
SIM900A
TOP VIEW
51 GPIO10/KBC0
50 GPIO9/KBC1
49 GPIO8/KBC2
48 GPIO7/KBC3
47 GPIO6/KBC4
46 GND
45 GND
44 GPIO5/KBR0
43 GPIO4/KBR1
42 GPIO3/KBR2
41 GPIO2/KBR3
40 GPIO1/KBR4
39 GND
38 SCL
37 SDA
36 PWM2
35 PWM1
Figure 41: SIM900A pin out diagram (Top View)
Table 31: PIN assignment
Pin Number
1
2
3
4
5
6
7
8
9
Pin Name
PWRKEY
PWRKEY_OUT
DTR
RI
DCD
DSR
CTS
RTS
TXD
Pin Number
35
36
37
38
39
40
41
42
43
Pin Name
PMW1
PWM2
SDA
SCL
GND
GPIO1/KBR4
GPIO2/KBR3
GPIO3/KBR2
GPIO4/KBR1
SIM900_HD_V1.01
55
26.12.2009
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