NXP | PCA9306DP1,125

The PCA9306 allows bidirectional voltage translations between 1.0 V and 5 V without the use of a direction pin. The PCA9306 is not a bus buffer like the PCA9509 or PCA9517A that provide both level translation and physically isolates the capacitance to either side of the bus when both sides are connected. The PCA9306 only isolates both sides when the device is disabled and provides voltage level translation when active.

The PCA9306 can also be used to run two buses, one at 400 kHz operating frequency and the other at 100 kHz operating frequency. If the two buses are operating at different frequencies, the 100 kHz bus must be isolated when the 400 kHz operation of the other bus is required. If the master is running at 400 kHz, the maximum system operating frequency may be less than 400 kHz because of the delays added by the translator.

Features:

• 2-bit bidirectional translator for SDA and SCL lines in mixed-mode I2C-bus applications
• Standard-mode, Fast-mode, and Fast-mode Plus I2C-bus and SMBus compatible
• Less than 1.5 ns maximum propagation delay to accommodate Standard-mode and Fast-mode I2C-bus devices and multiple masters
• Allows voltage level translation between:
  • 1.0 V Vref(1) and 1.8 V, 2.5 V, 3.3 V or 5 V Vbias(ref)(2)
  • 1.2 V Vref(1) and 1.8 V, 2.5 V, 3.3 V or 5 V Vbias(ref)(2)
  • 1.8 V Vref(1) and 3.3 V or 5 V Vbias(ref)(2)
  • 2.5 V Vref(1) and 5 V Vbias(ref)(2)3.3 V Vref(1) and 5 V Vbias(ref)(2)
• Provides bidirectional voltage translation with no direction pin
• Low 3.5 Ω ON-state connection between input and output ports provides less signal distortion
• Open-drain I2C-bus I/O ports (SCL1, SDA1, SCL2 and SDA2)
• 5 V tolerant I2C-bus I/O ports to support mixed-mode signal operation
• High-impedance SCL1, SDA1, SCL2 and SDA2 pins for EN = LOW
• Lock-up free operation
• Flow through pinout for ease of printed-circuit board trace routing
• ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
• Packages offered: SO8, TSSOP8, VSSOP8, XQFN8, XSON8, XSON8U

View the Complete Series of PCA9306 Translators