Product Summary

The FT232BM is the 2nd generation of FTDI popular USB UART device and the FT232BL is a lead free version of it. The FT232BQ provides the same functionality as the FT232BM and FT232BL in a QFN-32 lead free package. The FT232BM not only adds extra functionality to its predecessor (FT8U232AM) and reduces external component count, but also maintains a high degree of pin compatibility with the original making it easy to upgrade or cost reduce existing designs as well as increasing the potential for using this device in new application areas. The typical applications of FT232BM include: (1)USB to RS232 / RS422 / RS485 Converters; (2)Upgrading Legacy Peripherals to USB; (3)Cellular and Cordless Phone USB data transfer cables and interfaces; (4)Interfacing MCU / PLD / FPGA based designs to USB; (5)USB Audio and Low Bandwidth Video data transfer; (6)PDA to USB data transfer; (7)USB Smart Card Readers; (8)USB Instrumentation; (9)USB Industrial Control; (10)USB MP3 Player Interface; (11)USB FLASH Card Reader and Writers; (12)Set Top Box PC - USB interface; (13)USB Digital Camera Interface; (14)USB Hardware Modems; (15)USB Wireless Modems; (16)USB Bar Code Readers.

Parametrics

FT232BM absolute maximum ratings: (1)Storage Temperature: -65 to +150 ℃; (2)Ambient Temperature (Power Applied): 0 to +70 ℃; (3)VCC Supply Voltage: -0.5 to +6.00V; (4)DC Input Voltage, USBDP and USBDM: -0.5 to +3.8V; (5)DC Input Voltage, High Impedance Bidirectional: -0.5 to + (VCC+0.5)V; (6)DC Input Voltage, All Other Inputs: -0.5 to + (VCC +0.5)V; (7)DC Output Current, Outputs: 24 mA; (8)DC Output Current, Low Impedance Bidirectional: 24mA; (9)Power Dissipation (VCC = 5.25V): 500 mW; (10)Electrostatic Discharge Voltage (Human Body Model) (I<1uA): ±3000V; (11)Latch Up Current(Vi = +/- 10V maximum, for 10ms): ±200 mA.

Features

FT232BM features: (1)Single chip USB <=> asynchronous serial data transfer; (2)Full handshaking & modem interface signals; (3)UART interface supports 7/8 data bits, 1/2 stop bits and Odd/Even/Mark/Space/No Parity; (4)Data transfer rate of 300 Baud => 3M Baud (TTL); (5)Data transfer rate of 300 Baud => 1M Baud (RS232); (6)Data transfer rate of 300 Baud => 3M Baud (RS422/RS485); (7)384 Byte Rx buffer/128 Byte Tx buffer for high data throughput; (8)Adjustable Rx buffer timeout; (9)Fully assisted hardware or X-On/X-Off handshaking; (10)Built-in support for event characters and line break condition; (11)Auto transmit buffer control for RS485; (12)Support for USB suspend/resume through SLEEP# and RI# pins ; (13)Support for high power USB bus powered devices through PWREN# pin; (14)Integrated level converter on UART and control signals for interfacing to 5V and 3.3V logic; (15)Integrated 3.3V regulator for USB IO; (16)Integrated Power-On-Reset circuit; (17)Integrated 6MHz - 48Mhz clock multiplier PLL; (18)USB Bulk or Isochronous data transfer modes; (19)4.35V to 5.25V single supply operation; (20)UHCI/OHCI/EHCI host controller compatible; (21)USB 1.1 and USB 2.0 compatible; (22)USB VID, PID, serial number and product description strings in external EEPROM; (23)EEPROM programmable on-board via USB; (24)Compact 32-LD LQFP or QFN-32 package ; (25)Available as a Lead-free device (FT232BL and FT232BQ) compliant to EU directive 2002/95/EG RoHS.

Diagrams

FT232BM block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FT232BM
FT232BM

FTDI

UART Interface IC Obsolete FT232BL

Data Sheet

Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FT230XQ-R
FT230XQ-R

FTDI

USB Interface IC USB to Basic Serial UART IC QFN-16

Data Sheet

0-1: $1.22
1-50: $1.18
50-100: $1.14
100-1000: $0.84
1000-5000: $0.81
FT230XQ-T
FT230XQ-T

FTDI

USB Interface IC USB to Basic Serial UART IC QFN-16

Data Sheet

0-620: $1.14
620-1000: $0.84
1000-5000: $0.81
FT230XS-R
FT230XS-R

FTDI

USB Interface IC USB to Basic Serial UART IC SSOP-16

Data Sheet

0-1: $1.22
1-50: $1.18
50-100: $1.14
100-1000: $0.84
1000-3000: $0.84
FT230XS-U
FT230XS-U

FTDI

USB Interface IC USB to Basic Serial UART IC SSOP-16

Data Sheet

0-630: $1.14
630-1000: $0.84
1000-5000: $0.81
FT231XQ-R
FT231XQ-R

FTDI

USB Interface IC USB to Full Serial UART IC QFN-20

Data Sheet

0-1: $1.27
1-50: $1.23
50-100: $1.19
100-1000: $0.87
1000-5000: $0.84
FT231XQ-T
FT231XQ-T

FTDI

USB Interface IC USB to Full Serial UART IC QFN-20

Data Sheet

0-620: $1.19
620-1000: $0.87
1000-5000: $0.84