(China (Mainland))
Product Summary
The PCA9540BDP is a 1-of-2 bi-directional translating multiplexer, controlled via the I2C-bus. The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register. A power-on reset function puts the registers in their default state and initializes the I2C state machine with no channels selected.
Parametrics
PCA9540BDP absolute maximum ratings: (1)VDD DC supply voltage: –0.5 to +7.0 V; (2)VI DC input voltage:–0.5 to +7.0 V; (3)II DC input current: ±20 mA; (4)IO DC output current: ±25 mA; (5)IDD Supply current: ±100 mA; (6)ISS Supply current: ±100 mA; (7)Ptot total power dissipation: 400 mW; (8)Tstg Storage temperature range: –60 to +150℃; (9)Tamb Operating ambient temperature: –40 to +85℃.
Features
PCA9540BDP features: (1)1-of-2 bi-directional translating multiplexer; (2)I2C interface logic; compatible with SMBus standards; (3)Channel selection via I2C-bus; (4)Power up with all multiplexer channels deselected; (5)Low RdsON switches; (6)Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and; (7)5 V buses; (8)No glitch on power-up; (9)Supports hot insertion; (10)Low stand-by current; (11)Operating power supply voltage range of 2.3 V to 5.5 V; (12)5 V tolerant Inputs; (13)0 to 400 kHz clock frequency; (14)ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V per JESD22-C101; (15)Latch-up testing is done to JESDEC Standard JESD78 which exceeds 100 mA; (16)Packages Offered: SO8, TSSOP8.
Diagrams
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 PCA9540BDP,118 |
NXP Semiconductors |
Encoders, Decoders, Multiplexers & Demultiplexers I2C MUX 2CH |
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PCA9540BDP/DG,118 |
NXP Semiconductors |
Buffers & Line Drivers 2-CH I2C MUX DK GR |
Data Sheet |
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