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www.diodes.com

April 2019

Diodes Incorporated

PI7C9X760

Document Number DS40305 Rev 6-2

Features

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Single channel full-duplex UART

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Support I2C-bus or SPI interface

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64 bytes FIFO (transmitter and receiver)

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Fully compatible with industrial standard 16C450 and

equivalent

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Baud Rates up to 16Mbit/s in 4X sampling clock rate

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Programmable character formatting

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5-bit, 6-bit, 7-bit or 8-bit character

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Even, odd, or no parity

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1, 1.5, or 2 stop bits

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Programmable Receive and Transmit FIFO trigger levels

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Special character detection

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Internal Loopback mode

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Line break generation and detection

Flow Control

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Support hardware flow control using RTS/CTS

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Support software flow control with programmable Xon/Xoff

characters

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Programmable single or double Xon/Xoff characters

Interface Control

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Automatic RS-485 slave address detection

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RS-485 driver direction control via RTS signal

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RS-485 driver direction control inversion

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Built-in IrDA encoder and decoder interface

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Supports IrDA SIR with speeds up to 115.2 kbit/s ( optional

1.152Mbps)

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Up to eight user programmable GPIO pins

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Software reset

Others

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Low standby current at 3.3 V

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Wide operation voltage (1.8V, 2.5V or 3.3V)

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Industrial and commercial temperature ranges

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Available in QFN24, TSSOP24 and TSSOP16 Packages

I2C Interface

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Compliant with I2C-bus fast speed

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Support slave mode only

Description

The PI7C9X760 is a I2C-bus/SPI to a single-channel high per-

formance UART bridge controller. It offers data rates up to

33 Mbps and guarantees low operating and sleeping current.

The PI7C9X760 also has up to 8 additional programmable gen-

eral purpose I/O [GPIO] pins. The device comes in very small

TSSOP24 packages, which makes it ideally suitable for cost ef-

ficient, 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 PI7C9X760 supports SPI clock speeds up to 33 Mbps and

IrDA SIR up to 1.152 Mbit/s.

PI7C9X760’s internal register set is backward-compatible with the

widely used and widely popular 16C450 UART. The PI7C9X760

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. This allows the software to reset the UART at any

moment, independent of the hardware reset signal.

Application

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Industrial computing

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Automation

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Factory process control

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Mobile computing

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Embedded applications

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Battery operated devices

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Networking

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Crystal oscillator (up to 24MHz) or external clock (up to

64MHz) input

SPI Interface

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Support 33 Mbit/s maximum SPI clock speed

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Support SPI mode 0 (slave mode only)

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Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

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Halogen and Antimony Free. “Green” Device (Note 3)

I2C-bus/SPI to UART Bridge Controller w/ 64 bytes of TX/RX FIFOs

A product Line of

Diodes Incorporated

PI7C9X760

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Lead-free Green

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm

antimony compounds.