PCA9545 Datasheet | NXP Semiconductors

INTEGRATED CIRCUITS PCA9545 4-channel I2C switch with interrupt logic and reset Product data Supersedes data of 2001 Nov 08 2002 Mar 28 Philips Semiconductors Philips Semiconductors Product data 4-channel I2C switch with interrupt logic and reset PCA9545 passed by the PCA9545. This allows the use of different bus voltages on each pair, so that 1.8 V or 2.5 V or 3.3 V parts can municate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant. PIN CONFIGURATION A0 1 20 VDD 19 SDA 18 SCL 17 INT 16 SC3 15 SD3 14 INT3 13 SC2 12 SD2 11 INT2 Features - 1-of-4 bi-directional translating switches - I2C interface logic; patible with SMBus standards - 4 active low interrupt inputs - Active low interrupt output - Active low reset input - 2 address pins allowing up to 4 devices on the I2C bus - Channel selection via I2C bus, in any bination - Power up with all switch channels deselected - Low RDSON switches - Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and - No glitch on power-up - Supports hot insertion - Low stand-by current - Operating power supply voltage range of 2.3 V to 5.5 V - 5 V tolerant Inputs - 0 to 400 k Hz clock frequency - ESD protection exceeds 2000 V HBM per JESD22-A114, - Latch-up testing is done to JESDEC Standard JESD78 which - Package Offer: SO20,...