A product Line of
Diodes Incorporated
b
P
Lead-free Green
PI7C9X760
I2C-bus/SPI to UART Bridge Controller w/ 64 bytes of TX/RX FIFOs
Features
ꢀÎCrystal oscillator (up to 24MHz) or external clock (up to
ꢀÎSingle channel full-duplex UART
64MHz) input
2
ꢀÎSupport I C-bus or SPI interface
SPI Interface
ꢀÎSupport 33 Mbit/s maximum SPI clock speed
ꢀÎSupport SPI mode 0 (slave mode only)
ꢀÎ64 bytes FIFO (transmitter and receiver)
ꢀÎFully compatible with industrial standard 16C450 and
equivalent
ꢀÎTotally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
ꢀÎHalogen and Antimony Free. “Green” Device (Note 3)
ꢀÎBaud Rates up to 16Mbit/s in 4X sampling clock rate
ꢀÎProgrammable character formatting
à 5-bit, 6-bit, 7-bit or 8-bit character
Description
e PI7C9X760 is a I C-bus/SPI to a single-channel high per-
à Even, odd, or no parity
à 1, 1.5, or 2 stop bits
2
ꢀÎProgrammable Receive and Transmit FIFO trigger levels
formance UART bridge controller. It offers data rates up to
33 Mbps and guarantees low operating and sleeping current.
e PI7C9X760 also has up to 8 additional programmable gen-
eral purpose I/O [GPIO] pins. e device comes in very small
TSSOP24 packages, which makes it ideally suitable for cost ef-
ficient, handheld, battery operated applications. ese UART
bridges provide protocol conversion from I2C -bus or SPI to RS-
232/RS-485/RS-422 and are fully bidirectional.
ꢀÎSpecial character detection
ꢀÎInternal Loopback mode
ꢀÎLine break generation and detection
Flow Control
ꢀÎSupport hardware flow control using RTS/CTS
ꢀÎSupport soꢀware flow control with programmable Xon/Xoff
characters
e PI7C9X760 supports SPI clock speeds up to 33 Mbps and
IrDA SIR up to 1.152 Mbit/s.
ꢀÎProgrammable single or double Xon/Xoff characters
Interface Control
PI7C9X760’s internal register set is backward-compatible with the
widely used and widely popular 16C450 UART. e PI7C9X760
also provides additional advanced features such as auto hardware
and soꢀware flow control, automatic RS-485 support, support for
fractional baud rates and soꢀware reset. is allows the soꢀware
to reset the UART at any moment, independent of the hardware
reset signal. is allows the soꢀware to reset the UART at any
moment, independent of the hardware reset signal.
ꢀÎAutomatic RS-485 slave address detection
ꢀÎRS-485 driver direction control via RTS signal
ꢀÎRS-485 driver direction control inversion
ꢀÎBuilt-in IrDA encoder and decoder interface
ꢀÎSupports IrDA SIR with speeds up to 115.2 kbit/s ( optional
1.152Mbps)
ꢀÎUp to eight user programmable GPIO pins
ꢀÎSoꢀware reset
Others
Application
ꢀÎIndustrial computing
ꢀÎAutomation
ꢀÎFactory process control
ꢀÎMobile computing
ꢀÎEmbedded applications
ꢀÎBattery operated devices
ꢀÎNetworking
ꢀÎLow standby current at 3.3 V
ꢀÎWide operation voltage (1.8V, 2.5V or 3.3V)
ꢀÎIndustrial and commercial temperature ranges
ꢀÎAvailable in QFN24, TSSOP24 and TSSOP16 Packages
2
I C Interface
ꢀÎCompliant with I C-bus fast speed
2
ꢀÎSupport slave mode only
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.
www.diodes.com
April 2019
Diodes Incorporated
PI7C9X760
Document Number DS40305 Rev 6-2
1
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