NXP Semiconductors PCA9540B
The PCA9540B is a 1-of-2 bidirectional translating multiplexer, controlled via the I2C-bus. The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels. The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage that is passed by the PCA9540B.| Part No. | PCA9540B |
|---|---|
| Datasheet | PCA9540B Download |
| Manufacturer |  NXP Semiconductors |
| Description | 2-channel I2C-bus multiplexer |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● 1-of-2 bidirectional translating multiplexer● I2C-bus interface logic; compatible with SMBus standards
● Channel selection via I2C-bus
● Power-up with all multiplexer channels deselected
● Low Ron switches
● Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
● No glitch on power-up
● Supports hot insertion
● Low standby current
● Operating power supply voltage range of 2.3 V to 5.5 V
● 5 V tolerant inputs
● 0 Hz to 400 kHz clock frequency
● ESD protection exceeds 2000 V HBM per JESD22-A114, and 1000 V CDM per JESD22-C101
● Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
● Packages offered: SO8, TSSOP8, XSON8 NXP Semiconductors PCA9540B 2-channel I2C-bus multiplexer 3. Ordering information Table 1. Ordering information Type number Topside marking Package Name PCA9540BD PA9540B SO8 PCA9540BDP 9540B TSSOP8 PCA9540BDP/Q900 9540B TSSOP8 PCA9540BGD 40B XSON8
DESCRIPTION
plastic small outline package; 8 leads; body width...
