NCA9306-DVSR Integrated Circuit Chip 2-Bit Bidirectional I2C Bus Voltage-Level Translator with 100 MHz Translation and 5 V Tolerant I/O

NCA9306 is a 2-channel bidirectional I²C and SMBus multi-voltage level translator with an enable (EN) pin input. It allows voltage translation between 0.95 V and 5 V without the use of a direction pin. The device supports up to 100 MHz up translation and >100 MHz down translation at ≤ 30 pF capacitive load. There is no need for a direction pin, which minimizes system effort.

NCA9306 supports 5 V tolerant I/O pins to support mixed mode signal operation. The ability to set up different voltage translation levels on each channel makes the device very flexible and suitable for numerous applications.

• 2-channel bidirectional voltage translator for SDA and SCL lines in mixed mode I²C bus applications
• Open-drain I²C-bus I/O ports (SCLA, SDAA, SCLB and SDAB)
• Provides bidirectional voltage translation with no direction pin
• High-impedance SCLA, SDAA, SCLB and SDAB for EN = LOW
• Up translation: < 100 MHz; CL = 30 pF, < 40 MHz; CL = 50 pF
• Down translation: > 100 MHz; CL = 30 pF, < 40 MHz; CL = 50 pF
• Hot insertion capability
• Bidirectional voltage level translation between multiple voltage combinations
• Low standby current
• 5 V tolerant I²C-bus I/O pins to support mixed mode signal operation
• Low RON provides less signal distortion
• Latch-up performance exceeds 100 mA per JESD78 class II level A
• Operating temperature range: -40 °C to +125 °C

• I2C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces
• Servers
• Routers (Telecom Switching Equipment)
• Personal Computers
• Industrial Automation