TCA9617A Series

2-bit level-translating 1-MHz I2C/SMBus buffer/repeater with powered-off high-impedance

Catalog

2-bit level-translating 1-MHz I2C/SMBus buffer/repeater with powered-off high-impedance

Part	Operating Temperature [Max]	Operating Temperature [Min]	Channels per Circuit	Number of Circuits	Package / Case	Package / Case [custom]	Package / Case	Voltage - VCCB [Max]	Voltage - VCCB [Min]	Voltage - VCCA [Min] [custom]	Voltage - VCCA [Max] [custom]	Channel Type	Output Type	Translator Type	Mounting Type
Texas Instruments TCA9617BDGKR	85 °C	-40 °C	2	1	8-MSOP 8-TSSOP	0.118 in	3 mm	5.5 V	2.2 V	0.8 V	5.5 V	Bidirectional	Open Drain	Voltage Level	Surface Mount
Texas Instruments TCA9617ADGKR	85 °C	-40 °C	2	1	8-MSOP 8-TSSOP	0.118 in	3 mm	5.5 V	2.2 V	0.8 V	5.5 V	Bidirectional	Open Drain	Voltage Level	Surface Mount

Catalog

2-bit level-translating 1-MHz I2C/SMBus buffer/repeater with powered-off high-impedance

Key Features

• Two-channel bidirectional I2C bufferSupport for standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operationOperating supply voltage range of 0.8V to 5.5V on A-sideOperating supply voltage range of 2.2V to 5.5V on B-sideVoltage-level translation from 0.8V to 5.5V and 2.2V to 5.5VFootprint and function replacement for TCA9517Active-high repeater-enable inputOpen-drain I2C I/O5.5V Tolerant I2C and enable input supportLockup-free operationPowered-off high-impedance I2C bus pinsSupport for clock stretching and multiple controller arbitration across the deviceLatch-up performance exceeds 100mA per JESD 78, class IIESD protection exceeds JESD 224000V Human-body model1500V Charged-device modelTwo-channel bidirectional I2C bufferSupport for standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operationOperating supply voltage range of 0.8V to 5.5V on A-sideOperating supply voltage range of 2.2V to 5.5V on B-sideVoltage-level translation from 0.8V to 5.5V and 2.2V to 5.5VFootprint and function replacement for TCA9517Active-high repeater-enable inputOpen-drain I2C I/O5.5V Tolerant I2C and enable input supportLockup-free operationPowered-off high-impedance I2C bus pinsSupport for clock stretching and multiple controller arbitration across the deviceLatch-up performance exceeds 100mA per JESD 78, class IIESD protection exceeds JESD 224000V Human-body model1500V Charged-device model

Description

The TCA9617A is a BiCMOS dual bidirectional buffer intended for I2C bus and SMBus systems. The device provides bidirectional voltage-level translation (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages (2.2V to 5.5V) in mixed-mode applications. This device enables I2C and similar bus systems to be extended, without degradation of performance even during level shifting. The TCA9617A buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, allowing two buses of 550pF to be connected in an I2C application. This device can also be used to separate two halves of a bus for voltage and capacitance. The TCA9617A is a BiCMOS dual bidirectional buffer intended for I2C bus and SMBus systems. The device provides bidirectional voltage-level translation (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages (2.2V to 5.5V) in mixed-mode applications. This device enables I2C and similar bus systems to be extended, without degradation of performance even during level shifting. The TCA9617A buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, allowing two buses of 550pF to be connected in an I2C application. This device can also be used to separate two halves of a bus for voltage and capacitance.