PI7C9X762Q

Description

The PI7C9X762Q is a I2C-bus/SPI to a dual-channel high per­formance UART bridge controller. It offers data rates up to 33Mbps and guarantees low operating and sleeping current. The PI7C9X762Q also has up to 8 additional programmable general purpose I/O [GPIO] pins. The device comes in very small TQFN32 packages, which makes it ideally suitable for cost efficient, handheld, battery operated applications. These UART bridges provide protocol conversion from I2C -bus or SPI to RS-232/RS-485/RS-422 and are fully bidirectional.

The PI7C9X762Q supports SPI clock speeds up to 33Mbps and IrDA SIR up to 1.152Mbit/s.

The PI7C9X762Q’s internal register set is backward-compat­ible with the widely used and widely popular 16C450 UART. The PI7C9X762Q also provides additional advanced features such as auto hardware and software flow control, automatic RS-485 support, support for fractional baud rates and soft­ware reset. This allows the software to reset the UART at any moment, independent of the hardware reset signal.

Feature(s)

• AEC-Q100 Grade 2 Compliant
• Dual channel full-duplex UART
• Supports I2C-bus or SPI interface
• 64 bytes FIFO (transmitter and receiver)
• Fully compatible with industrial standard 16C450 and equivalent
• Baud Rates up to 16Mbit/s in 4X sampling clock rate
• Programmable character formatting
  • 5-bit, 6-bit, 7-bit or 8-bit character
  • Even, odd, or no parity
  • 1, 1.5, or 2 stop bits
• Programmable Receive and Transmit FIFO trigger levels
• Special character detection
• Internal Loopback mode
• Line break generation and detection

Flow Control

• Supports hardware flow control using RTS/CTS
• Supports software flow control with programmable Xon/Xoffcharacters
• Programmable single or double Xon/Xoff characters

Interface Control

• Automatic RS-485 slave address detection
• RS-485 driver direction control via RTS signal
• RS-485 driver direction control inversion
• Built-in IrDA encoder and decoder interface
• Supports IrDA SIR with speeds up to 115.2kbit/s (optional 1.152Mbps)
• Up to eight user programmable GPIO pins
• Software reset

Others

• Low standby current at 3.3V
• Wide operation voltage (1.8V, 2.5V or 3.3V)
• Automotive temperature ranges -40°C to 105°C

I²C Interface

• Compliant with I²C-bus fast speed
• Supports slave mode only
• Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input

SPI Interface

• PI7C9X762Q supports 33 Mbit/s maximum SPI clock speed
• Supports SPI mode 0 (slave mode only)
• Packaging (Pb-free & Green):
  • 32-Pin, TQFN (ZH)
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• The PI7C9X762Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities https://www.diodes.com/quality/product-definitions/

Application(s)

• Telematics
• ADAS
• Smart Cockpits
• Zonal Gateways
• Central Controllers