I²C (English Wikipedia)

Ferrari, Mario; Ferrari, Giulio (2018-04-29). Building Robots with LEGO Mindstorms NXT. Syngress. pp. 63–64. ISBN 9780080554334. Archived from the original on 2018-04-29.
Gasperi, Michael; Hurbain, Philippe (2010), "Chapter 13: I²C Bus Communication", Extreme NXT: Extending the LEGO MINDSTORMS NXT to the Next Level, ISBN 9781430224549

bxr.su (Global: low place; English: low place)

Theo de Raadt (2015-05-29). "/sys/dev/i2c/i2c_scan.c#probe_val". Super User's BSD Cross Reference. OpenBSD. Retrieved 2019-03-04. static u_int8_t probe_val[256];

cable-tester.com (Global: low place; English: low place)

"I2C Pin Out (Grove from Seeed Studio)". 22 April 2024.
"I2C Pin Out (From DFRobot Gravity)". 22 April 2024.

chrisbot.com (Global: low place; English: low place)

"VESA Display Data Channel Command Interface (DDC/CI) Standard" (PDF). Version 1.1. VESA. 2004-10-29. pp. 15–16. Archived (PDF) from the original on 2016-09-09. Retrieved 2017-12-01.

cnst.su (Global: low place; English: low place)

Constantine A. Murenin (2010-05-21). "5.2. I²C bus scan through i2c_scan.c". OpenBSD Hardware Sensors — Environmental Monitoring and Fan Control (MMath thesis). University of Waterloo: UWSpace. hdl:10012/5234. Document ID: ab71498b6b1a60ff817b29d56997a418.

doi.org (Global: 2^nd place; English: 2^nd place)

Arne Pahl, Stefan Dickmann (2022), Analysis of sensor disturbances caused by IEMI, pp. 159–165, doi:10.15488/12572, retrieved 2025-07-04

eetimes.com (Global: 3,722^nd place; English: 2,509^th place)

"Philips sues eight more companies for infringement of I2C bus patent". EE Times. October 17, 2001. Archived from the original on April 2, 2021.

github.com (Global: 383^rd place; English: 320^th place)

"Multiple I2C buses · Testato/SoftwareWire Wiki". GitHub.

hackaday.com (Global: low place; English: 7,505^th place)

Vasquez, Joshua (2017-08-16), Taking the leap off board: An introduction to I2C over long wires, archived from the original on 2017-08-16
"The Connector Zoo: I2C Ecosystems". 4 May 2022.

handle.net (Global: 102^nd place; English: 76^th place)

hdl.handle.net

Constantine A. Murenin (2010-05-21). "5.2. I²C bus scan through i2c_scan.c". OpenBSD Hardware Sensors — Environmental Monitoring and Fan Control (MMath thesis). University of Waterloo: UWSpace. hdl:10012/5234. Document ID: ab71498b6b1a60ff817b29d56997a418.

i2cchip.com (Global: low place; English: low place)

"I2C Bus Connectors & Cables" Archived 2017-08-18 at the Wayback Machine

intel.com (Global: 1,118^th place; English: 825^th place)

"Intelligent Platform Management Interface Specification Second Generation V2.0" (PDF). Document Revision 1.1. Intel, NEC, Hewlett-Packard & Dell. 2013-10-01. p. 563. Archived (PDF) from the original on 2016-03-27. Retrieved 2017-12-01. The 7-bit portion of the slave address for the BMC is 0010_000b

linear.com (Global: low place; English: low place)

cds.linear.com

Linear Technology's LTC4151 Archived 2017-08-09 at the Wayback Machine has two pins for address selection, each of which can be tied high or low or left unconnected, offering 9 different addresses.

lkml.org (Global: low place; English: low place)

Delvare, Jean (2005-08-16). "Re: [PATCH 4/5] add i2c_probe_device and i2c_remove_device". linux-kernel (Mailing list). Archived from the original on 2016-08-17.

maximintegrated.com (Global: low place; English: low place)

datasheets.maximintegrated.com

Maxim's MAX7314 Archived 2017-07-13 at the Wayback Machine has a single pin for address selection to be tied high or low or connected to SDA or SCL, offering 4 different addresses.

mcc-us.com (Global: low place; English: low place)

iPack Stackable Board Format, 2017-08-19, archived from the original on 2017-08-19

microchip.com (Global: low place; English: 8,026^th place)

microchip.com

"MCP23008". Microchip. May 26, 2021. Archived from the original on May 26, 2021.
"Sharing I2C bus | Microchip".

ww1.microchip.com

"What is TWI? How to Configure the TWI for I2C Communication" (PDF). Microchip Technology. 2018.

microcontrollertips.com (Global: low place; English: low place)

Thornton, Scott (2017-11-29). "The improved inter-integrated circuit (I3C)". Microcontroller Tips. Archived from the original on 2018-02-03.

microsoft.com (Global: 153^rd place; English: 151^st place)

docs.microsoft.com

Introduction to HID over I2C

mipi.org (Global: low place; English: low place)

"What is an I3C 'Controller' Device, and why was the I3C 'Master' Device renamed?". MIPI Alliance. Introduction to MIPI I3C. Retrieved April 27, 2025.

nongnu.org (Global: low place; English: low place)

avr-libc: Example using the two-wire interface (TWI) Archived 2007-05-27 at the Wayback Machine.

nxp.com (Global: low place; English: 8,784^th place)

"I²C-bus specification Rev 7" (PDF). NXP Semiconductors. October 1, 2021. Archived from the original (PDF) on October 6, 2022.
NXP Application note AN11075: Driving I2C-bus signals over twisted pair cables with PCA9605 (PDF), 2017-08-16, archived from the original (PDF) on 2017-08-16
"I²C-bus specification Rev 6" (PDF). NXP Semiconductors. April 4, 2014. Archived from the original (PDF) on April 26, 2021.

os4depot.net (Global: low place; English: low place)

i2c.resource component Archived 2011-07-24 at the Wayback Machine for AmigaOS 4.x.

patents.google.com (Global: 1,182^nd place; English: 725^th place)

NL Patent 8005976A, "Two-Wire Bus-System Comprising A Clock Wire And A Data Wire For Interconnecting A Number Of Stations", assigned to Philips Electronics Nv
US Patent 4689740, "Two-Wire Bus-System Comprising A Clock Wire And A Data Wire For Interconnecting A Number Of Stations", issued 1987-08-25, assigned to U.S. Philips Corporation

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Philo. "NXT connector plug" Archived 2017-08-20 at the Wayback Machine

pmbus.org (Global: low place; English: low place)

Using The ZONE_READ And ZONE_WRITE Protocols (PDF) (Application Note). Revision 1.0.1. System Management Interface Forum. 2016-01-07. AN001. Archived (PDF) from the original on 2017-09-22.

simplemachines.it (Global: low place; English: low place)

"I²C Address Allocation Table" (PDF) (Selection Guide). Philips Semiconductors. 1999-08-24. Archived from the original (PDF) on 2017-10-16. Retrieved 2017-10-01.

smbus.org (Global: low place; English: low place)

"System Management Bus (SMBus) Specification" (PDF). Version 3.0. System Management Interface Forum. 2014-12-20. pp. 81–82. Archived (PDF) from the original on 2016-01-29. Retrieved 2017-12-01.

sparkfun.com (Global: low place; English: low place)

"Qwiic".
"Qwiic Connect System — Frequently Asked Questions". www.sparkfun.com. SparkFun Electronics. Retrieved 2024-12-20.

st.com (Global: low place; English: low place)

"8-Kbit serial I²C bus EEPROM (PDF)" (PDF). STMicroelectronics. October 2017. Archived (PDF) from the original on 2019-10-18. Retrieved 19 November 2019.

stackexchange.com (Global: 1,983^rd place; English: 1,330^th place)

electronics.stackexchange.com

"Is there any definitive I2C pin-out guidance out there? Not looking for a "STANDARD"". StackExchange.
"Sending I2C reliabily over Cat5 cables" Archived 2017-08-18 at the Wayback Machine

tau.ac.il (Global: 4,464^th place; English: 4,468^th place)

Sivan Toledo. "I2C Interfacing Part 1: Adding Digital I/O Ports" Archived 2017-08-12 at the Wayback Machine. 2006

ti.com (Global: 4,228^th place; English: 2,818^th place)

TI's UCD9224 Archived 2017-11-07 at the Wayback Machine uses two ADC channels discriminating twelve levels each to select any valid 7-bit address.

totalphase.com (Global: low place; English: low place)

"7-bit, 8-bit, and 10-bit I2C Slave Addressing". Total Phase. Archived from the original on 2013-06-01. Retrieved 2018-04-29.

uni-hannover.de (Global: low place; English: low place)

repo.uni-hannover.de

Arne Pahl, Stefan Dickmann (2022), Analysis of sensor disturbances caused by IEMI, pp. 159–165, doi:10.15488/12572, retrieved 2025-07-04

uspto.gov (Global: 1,459^th place; English: 991^st place)

tmsearch.uspto.gov

"TESS -- Error". tmsearch.uspto.gov. Retrieved 2018-04-29.^{[permanent dead link]}

web.archive.org (Global: 1^st place; English: 1^st place)

"MCP23008". Microchip. May 26, 2021. Archived from the original on May 26, 2021.
"I²C-bus specification Rev 7" (PDF). NXP Semiconductors. October 1, 2021. Archived from the original (PDF) on October 6, 2022.
"7-bit, 8-bit, and 10-bit I2C Slave Addressing". Total Phase. Archived from the original on 2013-06-01. Retrieved 2018-04-29.
"8-Kbit serial I²C bus EEPROM (PDF)" (PDF). STMicroelectronics. October 2017. Archived (PDF) from the original on 2019-10-18. Retrieved 19 November 2019.
Using The ZONE_READ And ZONE_WRITE Protocols (PDF) (Application Note). Revision 1.0.1. System Management Interface Forum. 2016-01-07. AN001. Archived (PDF) from the original on 2017-09-22.
NXP Application note AN11075: Driving I2C-bus signals over twisted pair cables with PCA9605 (PDF), 2017-08-16, archived from the original (PDF) on 2017-08-16
Vasquez, Joshua (2017-08-16), Taking the leap off board: An introduction to I2C over long wires, archived from the original on 2017-08-16
iPack Stackable Board Format, 2017-08-19, archived from the original on 2017-08-19
Ferrari, Mario; Ferrari, Giulio (2018-04-29). Building Robots with LEGO Mindstorms NXT. Syngress. pp. 63–64. ISBN 9780080554334. Archived from the original on 2018-04-29.
Philo. "NXT connector plug" Archived 2017-08-20 at the Wayback Machine
Sivan Toledo. "I2C Interfacing Part 1: Adding Digital I/O Ports" Archived 2017-08-12 at the Wayback Machine. 2006
"Sending I2C reliabily over Cat5 cables" Archived 2017-08-18 at the Wayback Machine
"I2C Bus Connectors & Cables" Archived 2017-08-18 at the Wayback Machine
"I²C Address Allocation Table" (PDF) (Selection Guide). Philips Semiconductors. 1999-08-24. Archived from the original (PDF) on 2017-10-16. Retrieved 2017-10-01.
"System Management Bus (SMBus) Specification" (PDF). Version 3.0. System Management Interface Forum. 2014-12-20. pp. 81–82. Archived (PDF) from the original on 2016-01-29. Retrieved 2017-12-01.
"VESA Display Data Channel Command Interface (DDC/CI) Standard" (PDF). Version 1.1. VESA. 2004-10-29. pp. 15–16. Archived (PDF) from the original on 2016-09-09. Retrieved 2017-12-01.
"Intelligent Platform Management Interface Specification Second Generation V2.0" (PDF). Document Revision 1.1. Intel, NEC, Hewlett-Packard & Dell. 2013-10-01. p. 563. Archived (PDF) from the original on 2016-03-27. Retrieved 2017-12-01. The 7-bit portion of the slave address for the BMC is 0010_000b
i2c.resource component Archived 2011-07-24 at the Wayback Machine for AmigaOS 4.x.
Linear Technology's LTC4151 Archived 2017-08-09 at the Wayback Machine has two pins for address selection, each of which can be tied high or low or left unconnected, offering 9 different addresses.
Maxim's MAX7314 Archived 2017-07-13 at the Wayback Machine has a single pin for address selection to be tied high or low or connected to SDA or SCL, offering 4 different addresses.
TI's UCD9224 Archived 2017-11-07 at the Wayback Machine uses two ADC channels discriminating twelve levels each to select any valid 7-bit address.
Delvare, Jean (2005-08-16). "Re: [PATCH 4/5] add i2c_probe_device and i2c_remove_device". linux-kernel (Mailing list). Archived from the original on 2016-08-17.
avr-libc: Example using the two-wire interface (TWI) Archived 2007-05-27 at the Wayback Machine.
Thornton, Scott (2017-11-29). "The improved inter-integrated circuit (I3C)". Microcontroller Tips. Archived from the original on 2018-02-03.
"Philips sues eight more companies for infringement of I2C bus patent". EE Times. October 17, 2001. Archived from the original on April 2, 2021.
I²C-bus specification Rev 2.0; Philips Semiconductors; December 1998; Archived.
I²C-bus specification Rev 2.1; Philips Semiconductors; January 2000; Archived.
I²C-bus specification Rev 3; NXP Semiconductors; June 19, 2007; Archived.
I²C-bus specification Rev 4; NXP Semiconductors; February 13, 2012; Archived.
I²C-bus specification Rev 5; NXP Semiconductors; October 9, 2012; Archived.
"I²C-bus specification Rev 6" (PDF). NXP Semiconductors. April 4, 2014. Archived from the original (PDF) on April 26, 2021.

zephyrproject.org (Global: low place; English: low place)

docs.zephyrproject.org

"Inter-Integrated Circuit (I2C) Bus — Zephyr Project Documentation".

I²C (English Wikipedia)

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microchip.com

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