FT245BL/TR FTDI, FT245BL/TR Datasheet
FT245BL/TR
Specifications of FT245BL/TR
Related parts for FT245BL/TR
FT245BL/TR Summary of contents
Page 1
... IO Port without the need for MCU or other support logic. • 4.35V to 5.25V single supply operation DS245BL Version 1.6 FT245BL USB FIFO ( USB - Parallel ) I.C. generation of FTDI’s popular USB FIFO I.C. This device not only nd • • • • ...
Page 2
... Commands to set the baud rate are ignored - the device always transfers data at its fastest rate regardless of the application’s baud-rate setting. Alternatively, FTDI’s D2XX drivers allow application software to access the device “directly” through a published DLL based API. Details of the current VCP and D2XX driver can be found on FTDI’s web site ( http://www ...
Page 3
GND when power is removed thus ensuring that external circuitry controlled by PWREN# resets reliably when power is restored. PWREN# can also be used by external circuitry to determine when USB is in ...
Page 4
... The FPGA based hardware can be easily upgraded or totally changed simply by changing the FPGA configuration data file. Application notes, software and development modules for this application area will be available from FTDI and other 3 developers. • Less External Support Components As well as eliminating the RCCLK RC network, and ...
Page 5
Block Diagram ( simplified ) VCC 3.3 Volt 3V3OUT LDO Regulator USBDP USB Transceiver USBDM USB DPLL XTOUT 6MHZ Oscillator XTIN GND TEST 3.1 Functional Block Descriptions • 3.3V LDO Regulator The 3.3V LDO Regulator generates the 3.3 volt ...
Page 6
... MicroChip 93LC46B or equivalent capable of a 1Mb/s clock rate at VCC = 4.35V to 5.25V. The EEPROM is programmable- on board over USB using a utility available from FTDI’s web site ( http://www.ftdichip.com allows a blank part to be soldered onto the PCB and programmed as part of the manufacturing and test process ...
Page 7
... Device Pin-Out Figure 1 Pin-Out (Lead free LQFP-32 Package ) 32 EESK 1 FTDI EEDATA VCC RESET# FT245BL RSTO# 3V3OUT XXYY USBDP USBDM 8 9 DS245BL Version 1.6 FT245BL USB FIFO ( USB - Parallel ) I. GND 16 © Future Technology Devices Intl. Ltd. 2005 Figure 2 Pin-Out (Schematic Symbol ) ...
Page 8
Signal Descriptions Table 1 - FT245BL - PINOUT DESCRIPTION FIFO DATA BUS GROUP (*** Note 1) Pin# Signal Type 25 DO I ...
Page 9
POWER CONTROL GROUP Pin# Signal Type 10 PWREN# OUT MISCELLANEOUS SIGNAL GROUP Pin# Signal Type RESET RSTOUT# OUT 27 XTIN IN 28 XTOUT OUT 31 TEST IN DS245BL Version 1.6 FT245BL USB ...
Page 10
POWER AND GND GROUP Pin# Signal Type 6 3V3OUT OUT 3,26 VCC PWR VCCIO PWR 13 9,17 GND PWR 30 AVCC PWR AGND PWR 29 Note Input Mode, these pins are pulled to VCCIO via internal 200K ...
Page 11
FT245BL TIMING DIAGRAM – FIFO READ CYCLE RXF# RD# D0..D7 Time Description T1 RD Active Pulse Width Pre-Charge Time T3 RD Active to Valid Data T4 Valid Data Hold Time from RD Inactive T5 RD Inactive ...
Page 12
... An alternative 5mm x 5mm leadless QFN is also available for projects where package area is critical. Part number for this version is FT245BQ. The FT245BQ is also a lead free package. See the seperate datasheet for package dimensions. DS245BL Version 1.6 FT245BL USB FIFO ( USB - Parallel ) I. FTDI FT245BL XXYY 0 +/- ...
Page 13
Absolute Maximum Ratings These are the absolute maximum ratings for the FT245BL device i Exceeding these may cause permanent damage to the device. (IEC 60134). Parameter Storage Temperature Floor Life (Out of Bag) at Factory Ambient (30 C/60% Relative ...
Page 14
FIFO Data / Control Bus IO Pin Characteristics ( VCCIO = 3V to 3.6V ) Parameter Description Voh Output Voltage High Output Voltage Low Vol Vin Input Switching Threshold VHys Input Switching Hysteresis ***Note 7 – Inputs or IO Pins ...
Page 15
Device Configuration Examples 7.1 Oscillator Configurations Figure 4 3 Pin Ceramic Resonator Configuration 3-Pin Resonator 6MHz Configuration Figure 4 illustrates how to use the FT245BL with a 3-Pin Ceramic Resonator. A suitable part would be a ceramic resonator from ...
Page 16
EEPROM Configuration Figure 6 32 EECS 1 EESK 2 EEDATA EEPROM - 93C46 / 2k2 3 DIN 4 DOUT VCC 10k is necessary to pull Dout high using a 10K resistor. If ...
Page 17
USB Bus Powered and Self Powered Configuration Figure 7 USB Bus Powered Configuration USB "B" Connector 10nF VCC + 0.1uF 0.1uF Decoupling Capacitors Figure 7 illustrates a typical USB bus powered configuration. A USB Bus ...
Page 18
Figure 8 USB Self Powered Configuration USB "B" Connector 4k7 10k VCC 0.1uF 0.1uF Decoupling Capacitors Figure 8 illustrates a typical USB self powered configuration. A USB Self Powered device gets its power from its own ...
Page 19
Figure 9 Bus Powered Circuit with 3.3V logic drive / supply voltage USB "B" Connector 10nF Figure 9 shows how to configure the FT245BL to interface with a 3.3V logic device. In this example, a discrete ...
Page 20
Figure 10 Self Powered Circuit with 3.3 V logic drive / supply voltage USB "B" Connector 4K7 10K VCC5V 0.1uF 0.1uF Decoupling Capacitors Figure example of a USB self powered design with 3.3V ...
Page 21
Figure 11 Bus Powered Circuit with Power Control USB "B" Connector 10nF USB Bus powered circuits need to be able to power down in USB suspend mode in order to meet the <= 500uA total suspend ...
Page 22
Figure 12 Microprocessor Interface Example FT245BM Figure 12 illustrates a typical interface between the FT245BL and a MicroController (MCU). This examples uses two IO Ports of the MCU, one port (8 bits) to transfer data and the other port (4 ...
Page 23
... Section 7.1 Required accuracy of crystal / resonator corrected. DS245B Version 1.4 – Updated 10 February 2004 • Grammar Corrections. • Section 10.0 FTDI Address Updated • Section 4.1 VCCIO Pin description ammended. DS245B Version 1.5 – Updated March 2004 • Section 4.1 FIFO EESK Pin Description amended. ...
Page 24
... Web Site for the contact details our distributor(s) in your country. See : http://www.ftdichip.com/FTDisti.htm DS245BL Version 1.6 FT245BL USB FIFO ( USB - Parallel ) I.C. E-Mail ( Sales ) : E-Mail ( Support ) : E-Mail ( General Enquiries ) : Web Site URL : © Future Technology Devices Intl. Ltd. 2005 sales1@ftdichip.com support1@ftdichip.com admin1@ftdichip.com http://www.ftdichip.com Page ...