FT245RQ-REEL Datasheet, PDF (4/37 Pages) List of Unclassifed Manufacturers – Future Technology Devices International Ltd. FT245R USB FIFO IC

2 FT245R Block Diagram
Document No.: FT_000052
FT245R USB FIFO IC Datasheet Version 2.12
Clearance No.: FTDI# 39
VCC
3V3OUT
3.3 Volt
LDO
Regulator
USBDP
USBDM
USB
Transceiver
with
Integrated
Series
Resistors
and 1.5K
Pull-up
USB DPLL
OSCO
(optional)
OCSI
(optional)
Internal
12MHz
Oscillator
PWREN#
FIFO RX Buffer
128 bytes
VCCIO
Serial Interface
Engine
( SIE )
USB
Protocol Engine
FIFO Controller
with
Programmable
High Drive
To USB
Transceiver
Cell
Internal
EEPROM
Clock
Multiplier
48MHz
FIFO TX Buffer
256 bytes
RESET#
To USB Transceiver Cell
3V3OUT
RESET
GENERATOR
D0
D1
D2
D3
D4
D5
D6
D7
RD#
WR
RXF#
TXE#
TEST
GND
Figure 2.1 FT245R Block Diagram
For a description of each function please refer to Section 4.
Copyright © 2010 Future Technology Devices International Limited
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