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PCA9306GF Datasheet(PDF) 6 Page - NXP Semiconductors |
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PCA9306GF Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 26 page PCA9306_5 © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 05 — 19 March 2010 6 of 26 NXP Semiconductors PCA9306 Dual bidirectional I2C-bus and SMBus voltage-level translator 6. Functional description Refer to Figure 1 “Logic diagram of PCA9306 (positive logic)”. 6.1 Function table [1] EN is controlled by the Vbias(ref)(2) logic levels and should be at least 1 V higher than Vref(1) for best translator operation. 7. Limiting values [1] The input and input/output negative voltage ratings may be exceeded if the input and input/output clamp current ratings are observed. 8. Recommended operating conditions [1] Vref(1) ≤ Vbias(ref)(2) − 1 V for best results in level shifting applications. Table 3. Function selection (example) H = HIGH level; L = LOW level. Input EN[1] Function H SCL1 = SCL2; SDA1 = SDA2 L disconnect Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Over operating free-air temperature range. Symbol Parameter Conditions Min Max Unit Vref(1) reference voltage (1) −0.5 +6 V Vbias(ref)(2) reference bias voltage (2) −0.5 +6 V VI input voltage −0.5[1] +6 V VI/O voltage on an input/output pin −0.5[1] +6 V Ich channel current (DC) - 128 mA IIK input clamping current VI <0V - −50 mA Tstg storage temperature −65 +150 °C Table 5. Operating conditions Symbol Parameter Conditions Min Max Unit VI/O voltage on an input/output pin SCL1, SDA1, SCL2, SDA2 05V Vref(1)[1] reference voltage (1) VREF1 0 5 V Vbias(ref)(2)[1] reference bias voltage (2) VREF2 0 5 V VI(EN) input voltage on pin EN 0 5 V Isw(pass) pass switch current - 64 mA Tamb ambient temperature operating in free-air −40 +85 °C |
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