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FT230XS
UART1_TX_DATA
FT_TXD
FT_RXD
UART1_RX_DATA
i.MX 6ULL
VCCIO
VCC
VDD_3V3 _PERI
USB_DM
USB_DP
D+
D-
D-
D+
GND
ECMF02-2
USB_5V0
10118193-0001LF
27
Ÿ
GND AGND
CBUS0
4
7
p
F
RESET#
VDD_3V3 _PERI
10 k
Ÿ
NOTE : Need to pull down CTS on processor side
CTS#
USB_5V0
4.7 k
Ÿ
10 k
Ÿ
VDD_3V3_PERI
4.7 k
Ÿ
10 k
Ÿ
VSS
System Overview
8
TIDUEW7 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Integrated Power Supply Reference Design for NXP i.MX 6ULL
2.2.3
USB to UART Converter
There is a USB to Serial (UART) interface in the design. To implement this feature, the FT230X chip from
FTDI is used which is a USB to dual port RS232 converter. The detailed diagram of interconnection is
shown in
.
DESCRIPTION
MFG.
PART NUMBER
IC, FT230X, USB to UART Converter, SSOP-16
FTDI Chip
FT230XS
IC, ECMF02-2, Dual-line CM Filter with ESD Protection,
5GHz, WLCSP-5P
ST Microelectronics
ECMF02-2BF3
Conn, USB Micro-B Receptacle, 1x1, RA, SMD
FCI - Amphenol ICC
10118193-0001LF
Figure 6. USB to Serial UART Interface With FT230X