FT231XQ-T FTDI, FT231XQ-T Datasheet - Page 4
FT231XQ-T
Manufacturer Part Number
FT231XQ-T
Description
USB Interface IC USB to Full Serial UART IC QFN-20
Manufacturer
FTDI
Datasheet
1.FT231XS-R.pdf
(44 pages)
Specifications of FT231XQ-T
Rohs
yes
Tradename
X-Chip
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2
Figure 2.1 FT231X Block Diagram
For a description of each function please refer to Section 4.
FT231X Block Diagram
3V3OUT
USBDM
USBDP
VCC
GND
3.3 Volt LDO
Transceiver
1.5k pullups
Regulator
and battery
USB DPLL
Integrated
Oscillator
detection
Internal
12MHz
charge
USB
with
Copyright © 2013 Future Technology Devices International Limited
1.8 Volt LDO
Regulator
X4 Clock
Multiplier
Serial Interface
Engine
(SIE)
Core Supply
1V8 Internal
48MHz
FT231X USB TO FULL HANDSHAKE UART IC
Protocol Engine
FIFO RX Buffer
FIFO TX Buffer
Internal MTP
(512 bytes)
(512 bytes)
Memory
USB
Document No.: FT_000565 Clearance No.:
To USB Transceiver Cell
UART FIFO
Controller
RESET#
48MHz
UART Controller
Signal Inversion
Programmable
Generator
Baud Rate
Generator
Reset
with
3V3OUT
Datasheet
Version 1.2
FTDI# 261
TXD
CTS#
DSR#
DCD#
RI#
RXD
RTS#
DTR#
CBUS0
CBUS1
CBUS2
CBUS3
4
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