NXP Semiconductors PCA9544A
The PCA9544A is a 1-of-4 bidirectional translating multiplexer, controlled via the I2C-bus. The SCL/SDA upstream pair fans out to four SCx/SDx downstream pairs, or channels.| Part No. | PCA9544A |
|---|---|
| Datasheet | PCA9544A Download |
| Manufacturer |  NXP Semiconductors |
| Description | 4-channel I2C-bus multiplexer |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● 1-of-4 bidirectional translating multiplexer● I2C-bus interface logic; compatible with SMBus
● 4 active LOW interrupt inputs
● Active LOW interrupt output
● 3 address pins allowing up to 8 devices on the I2C-bus
● 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
● Three packages offered: SO20, TSSOP20 and HVQFN20 NXP Semiconductors PCA9544A 4-channel I2C-bus multiplexer with interrupt logic 3. Ordering information Table 1. Ordering information Type number Topside marking Package Name PCA9544ABS 9544A...
