5
4
3
2
1
9
8
7
6
GND DTR
DSR
TX1 RX1
RTS1
NC
NC CTS1
Figure 4-2. Female DB9 Connector Pinout
Table 4-3. J2 jumper pin connection
Connection
Type
Description
1
GND
Ground
2
Input
CST2, pin 8 of transceiver
3
GND
Ground
4
Output
RTS2, pin 7 of transceiver
5
GND
Ground
6
Output
TX2, pin 10 of transceiver
7
GND
Ground
8
Input
RX2, pin 9 of transceiver
9
GND
Ground
10
GND
Ground
11
GND
Ground
12
GND
Ground
13
GND
Ground
14
Power
Ground
15
GND
Vcc
16
GND
Ground
4.2 Bill of Materials
Table 4-4. Bill of Materials
Designator
Qty Value
Description
Package Reference
Part Number
Manufacturer
C1, C2, C3, C4
4
0.1uF
CAP, CERM, 0.1 uF, 16 V, +/- 10%, X5R, 0402
0402
GRM155R61C104KA88
D
MuRata
C5
1
0.1uF
CAP, CERM, 0.1 uF, 10 V, +/- 10%, X7R, 0603
0603
C0603C104K8RACTU
Kemet
C6
1
1uF
CAP, CERM, 1 uF, 10 V, +/- 10%, X7R, 0603
0603
GRM188R71A105KA61D MuRata
CTS1, CTS2, RTS1,
RTS2, RX1, RX2,
TX1, TX2
8
Test Point, Miniature, SMT
Testpoint_Keystone_
Miniature
0515
Keystone
H9, H10, H11, H12
4
Bumpon, Hemisphere, 0.44 X 0.20, Clear
Transparent Bumpon SJ-5303 (CLEAR)
3M
J1
14
Receptacle, D-Sub, 9 Position, R/A, TH
Receptacle, D-Sub, 9
Position, R/A, TH
1734354-1
TE Connectivity
J2
1
Header, 100mil, 8x2, Gold, TH
PBC08DAAN
PBC08DAAN
Sullins
Connector
Solutions
R1, R2
2
10.0k
RES, 10.0 k, 1%, 0.1 W, 0402
0402
ERJ-2RKF1002X
Panasonic
R3, R4, R5, R6, R7
5
0
RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0402
0402
ERJ-2GE0R00X
Panasonic
U0
1
RS-232 Transceiver Portfolio Refresh, RGT0016C
(VQFN-16)
RGT0016C
TRS3232RGT
Texas
Instruments
V+, V-
2
Test Point, Miniature, White, TH
White Miniature
Testpoint
5002
Keystone
5 Trademarks
All trademarks are the property of their respective owners.
Schematic and Layout
SLLU320 – NOVEMBER 2020
TRS3232RGTEVM Evaluation Module
5
Copyright © 2020 Texas Instruments Incorporated