The PCA9543A/43B/43C is a bidirectional translating switch, controlled by the I2C-bus. The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Any individual SCx/SDx channels or combination of channels can be selected, determined by the contents of the programmable control register. Two interrupt inputs, INT0 and INT1, one for each of the do.
I I I I I I I I I I I I I I I 1-of-2 bidirectional translating switches I2C-bus interface logic; compatible with SMBus standards 2 active LOW interrupt inputs Active LOW interrupt output Active LOW reset input 2 address pins allowing up to 4 devices on the I2C-bus Alternate address versions A, B and C allow up to a total of 12 devices on the bus for larger systems or to resolve address conflicts Channel selection via I2C-bus, in any combination Power-up with all switch 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 po.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | PCA9543 |
NXP |
2-channel I2C switch | |
2 | PCA9543A |
Texas Instruments |
2-Channel I2C Bus Switch | |
3 | PCA9543A |
NXP Semiconductors |
2-channel I2C-bus switch | |
4 | PCA9543B |
NXP Semiconductors |
2-channel I2C-bus switch | |
5 | PCA9540 |
NXP |
2-channel I2C multiplexer | |
6 | PCA9540B |
NXP |
2-channel I2C-bus multiplexer | |
7 | PCA9541 |
NXP Semiconductors |
2-to-1 I2C-bus master selector | |
8 | PCA9541A |
NXP Semiconductors |
2-to-1 I2C-bus master selector | |
9 | PCA9542 |
NXP |
2-channel I2C multiplexer and interrupt controller | |
10 | PCA9542A |
NXP Semiconductors |
2-channel I2C-bus multiplexer and interrupt logic | |
11 | PCA9544 |
NXP |
4-channel I2C multiplexer and interrupt controller | |
12 | PCA9544A |
NXP |
4-channel I2C-bus multiplexer |