STMicroelectronics UM2322 User Manual page 18

3V3 3V3
3V3
3V3
R20 R21
U10 10K 10K
1 8
E0 VCC
2 7
E1 WC GND
3 6
E2 SCL
4 5
VSS SDA
M24128DWMN
GND
Figure 8. Expansion board STMod+
Sim_select1
STMOD+_IO7
PWRen
STMOD+_IO10
VDD_EXT
GND
VCC VCC
STmod+
CN3
CTSS RIS
1 11
RXDS STMOD+_IO12
2 12 RST
TXDS STMOD+_IO13
3 13 sim_CLK
RTSS STMOD+_IO4 STMOD+_IO14 DTRS
4 14
5 15
6 16
STMOD+_IO7 STMOD+_IO17
7 17 sim_RST
STMOD+_IO8 STMOD+_IO18
8 18 Sim_select0
STMOD+_IO9 STMOD+_IO19
9 19 sim_DATA
STMOD+_IO10 STMOD+_IO20
10 20
TMM-110-01-L-D-RA STAS
VDD_EXT 3V3
VDD_EXT
C11 C12
GND
GND GND
100nF 100nF
R11
120K U7
R12
10 TXS0108EPWR
OE
10K
R9 51K 1 20 R10 51K
A1 B1 GND
RI 3 18 RIS
RI A2 B2
DTR 4 17 DTRS
DTR A3 B3
RTS 5 16 RTSS
RTS A4 B4
RXD 6 15 RXDS
RXD A5 B5
STA 7 14 STAS
STA A6 B6
CTS 8 13 CTSS
CTS A7 B7
TXD 9 12 TXDS
TXD A8 B8
GND
Title: STMOD+
Project: C2C
Variant: [No Variations]
Revision: B 02 - Reference: MB1329
Size: A4 Date: 01-JAN-16 Sheet: 5 of 6