FTDI-be-gone RS - direct wire variant
author: nsayer
2 layer board of 1.48 x 0.90 inches (37.5 x 22.9 mm)
Uploaded:
December 24, 2017
Shared:
December 24, 2017
Total Price:
$6.60
This is a version of my FTDI-be-gone RS-232 board, but with SSOP instead of QFN parts, and designed to be directly wired to a USB cable. Connect the signal/power ground pin of the USB cable to the GND pin and connect the cable’s shield to the SHLD pin of the USB connector (there is an RC circuit between the two designed to break ground loops but shunt AC to ground). Mount a PC pin DB9M on the edge of the board for the RS-232 connection.
- IC1 - CY7C65213
- IC2 - MAX3243ECDB
- FB1 - 400Ω ferrite bead
- C1-C4, C7 - 1µF
- C5 & C6 - 0.1µF
- C9 - 0.01µF
- C8 - 10µF
- C10 - 4700pF
- R1 & R2 - 330Ω
- R3 - 1MΩ
- TX & RX - 0805 LEDS
NOTE: Both ICs have pin 1 oriented towards the bottom of the board.
This is a version of my FTDI-be-gone RS-232 board, but with SSOP instead of QFN parts, and designed to be directly wired to a USB cable. Connect the signal/power ground pin of the USB cable to the GND pin and connect the cable’s shield to the SHLD pin of the USB connector (there is an RC circuit between the two designed to break ground loops but shunt AC to ground). Mount a PC pin DB9M on the edge of the board for the RS-232 connection.
- IC1 - CY7C65213
- IC2 - MAX3243ECDB
- FB1 - 400Ω ferrite bead
- C1-C4, C7 - 1µF
- C5 & C6 - 0.1µF
- C9 - 0.01µF
- C8 - 10µF
- C10 - 4700pF
- R1 & R2 - 330Ω
- R3 - 1MΩ
- TX & RX - 0805 LEDS
NOTE: Both ICs have pin 1 oriented towards the bottom of the board.
