Model No: FT4232HQ
FTDI FT4232HQ
Manufacturer: FTDI
SEMICON NO.: FT4232HQ
Package: 64-QFN
Stock: In stock
Description: USB Bridge IC 4 Channels 30 Mbits 5V
SEMICON NO.: FT4232HQ
Package: 64-QFN
Stock: In stock
Description: USB Bridge IC 4 Channels 30 Mbits 5V
Quantity :
| Mfr | FTDI |
| Device Type | USB 2.0 High Speed to Quad UART/MPSSE Bridge IC |
| USB Compliance | USB 2.0 High Speed and Full Speed compatible |
| Number of Channels | 4 |
| Channel Configuration | Channels A & B: UART or MPSSE, Channels C & D: UART |
| UART Data Rate (Max) | 12 Mbaud |
| MPSSE Data Rate (Max) | Up to 30 Mbits/s |
| Supply Voltage (VCC) | 3.0 V to 3.6 V (core I/O), 1.62 V to 1.98 V |
| Supply Current (Typ) | 70 mA (active), 500 µA (quiescent) |
| I/O Voltage Tolerance | 5 V |
| Operating Temperature | –40°C to +85°C |
| Package | 64-QFN |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The FT4232HQ is a USB 2.0 Hi-Speed (480Mb/s) to quad-channel UART/MPSSE interface IC from FTDI, integrating four independent configurable channels on a single chip. Two channels (A and B) feature Multi-Protocol Synchronous Serial Engines (MPSSE) for emulating JTAG, SPI, I2C, and bit-bang interfaces, while channels C and D serve as dedicated UARTs, delivering RS232/RS422/RS485 data rates up to 12Mbaud. The highly integrated design includes a +1.8V LDO regulator for VCORE, integrated power-on reset (POR), and an on-chip clock multiplier PLL (12MHz-480MHz), requiring no USB-specific firmware programming.
Applications
● Single-chip USB to four-channel UART (RS232/RS422/RS485) interfaces for multi-port serial communication.
● Dual JTAG debug probes and FPGA/CPLD programming cables using two MPSSE engines simultaneously.
● USB instrumentation and industrial control systems requiring mixed UART, SPI, I2C, and JTAG channels on one chip.
● Legacy peripheral upgrades to USB connectivity and field-upgradable USB products.
● USB smart card readers, bar code readers, and digital camera interfaces.
● Galvanically isolated USB interfaces and set-top box PC communication modules.
FAQs
Q: How many MPSSE channels does the FT4232HQ have?
A: Two channels (A and B) support MPSSE for JTAG/SPI/I2C emulation, while channels C and D operate as standard UARTs only.
Q: Does the chip require external USB firmware development?
A: No - the entire USB protocol is handled on-chip, and FTDI's royalty-free VCP and D2XX drivers eliminate firmware/driver development in most applications.
Q: What supply voltages are needed?
A: A single +3.3V supply powers the device; the internal +1.8V LDO generates the core voltage, and I/O pins are 5V-tolerant.
Alternative USB interface Models
● FT4232HL: The functionally identical LQFP-64 packaged version offering easier hand-soldering and inspection compared to QFN.
● FT2232HQ: The dual-channel Hi-Speed sibling in QFN-64 for applications needing two UART/MPSSE interfaces.
● FT232HQ: The single-channel Hi-Speed version with MPSSE for cost-sensitive JTAG/SPI/I2C applications.
● CY7C65213: An Infineon USB-UART bridge alternative offering single-channel UART with configurable interfaces for simpler designs.
Applications
● Single-chip USB to four-channel UART (RS232/RS422/RS485) interfaces for multi-port serial communication.
● Dual JTAG debug probes and FPGA/CPLD programming cables using two MPSSE engines simultaneously.
● USB instrumentation and industrial control systems requiring mixed UART, SPI, I2C, and JTAG channels on one chip.
● Legacy peripheral upgrades to USB connectivity and field-upgradable USB products.
● USB smart card readers, bar code readers, and digital camera interfaces.
● Galvanically isolated USB interfaces and set-top box PC communication modules.
FAQs
Q: How many MPSSE channels does the FT4232HQ have?
A: Two channels (A and B) support MPSSE for JTAG/SPI/I2C emulation, while channels C and D operate as standard UARTs only.
Q: Does the chip require external USB firmware development?
A: No - the entire USB protocol is handled on-chip, and FTDI's royalty-free VCP and D2XX drivers eliminate firmware/driver development in most applications.
Q: What supply voltages are needed?
A: A single +3.3V supply powers the device; the internal +1.8V LDO generates the core voltage, and I/O pins are 5V-tolerant.
Alternative USB interface Models
● FT4232HL: The functionally identical LQFP-64 packaged version offering easier hand-soldering and inspection compared to QFN.
● FT2232HQ: The dual-channel Hi-Speed sibling in QFN-64 for applications needing two UART/MPSSE interfaces.
● FT232HQ: The single-channel Hi-Speed version with MPSSE for cost-sensitive JTAG/SPI/I2C applications.
● CY7C65213: An Infineon USB-UART bridge alternative offering single-channel UART with configurable interfaces for simpler designs.
