TCA9509DGKR Electronic Component 2.7V-5.5V 400kHz I2C Interface IC Chip

PCM1808PWR Electronic component Sgl-ended Ana Input 24B 96kHz Stereo ADC IC Chip

Features

• Two-channel bidirectional buffer

• I2C bus and SMBus compatible

• Operating supply voltage range of
2.7 V to 5.5 V on B side

• Operating voltage range of 0.9 V to 5.5 V on A side

• Voltage-level translation from
0.9 V to 5.5 V and 2.7 V to 5.5 V

• Active-high repeater-enable input
• Requires no external pullup resistors on
lower-voltage port-A
• Open-drain I2C I/O
• 5.5-V Tolerant I2C and enable input support mixed-enable input support mixedmode signal operation
• Lockup-free operation
• Accommodates standard mode and fast mode I2C devices and multiple controllers

• Supports arbitration and clock stretching across Repeater

• Powered-off high-impedance I2C bus pins

• Supports 400-kHz fast I2C bus operating speeds

Description

This TCA9509 integrated circuit is an I2C bus/SMBus Repeater for use in I2C/SMBus systems. It can also provide bidirectional voltage-level translation (uptranslation/down-translation) between low voltages (down to 0.9 V) and higher voltages (2.7 V to 5.5 V) in mixed-mode applications. This device enables I 2C and similar bus systems to be extended, without degradation of performance even during level shifting. The TCA9509 buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, thus allowing 400-pF bus capacitance on the B-side. This device can also be used to isolate two halves of a bus for voltage and capacitance. The TCA9509 has two types of drivers – A-side drivers and B-side drivers. All inputs and B-side I/Os are overvoltage tolerant to 5.5 V. The A-side I/Os are overvoltage tolerant to 5.5 V when the device is unpowered (VCCB and/or VCCA = 0 V).

Date Sheet

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Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013, specializing in electronic components distribution business.The products are widely used in communication equipment, power supply, medical electronics, automotive electronics, digital electronics, industrial electronics, display modules, intelligent electronics, new energy, the Internet of things, 5G productsand other fields，With high-quality products, reasonable prices, rapid distributionand timely service, we can provide customers with the most cost-effective products and save customers a lot of time.