PCA9542 Philips Semiconductors, PCA9542 Datasheet
PCA9542
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PCA9542 Summary of contents
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... PCA9542 2 2-channel I C multiplexer and interrupt controller Product specification hilips Semiconductors INTEGRATED CIRCUITS 1999 Oct 07 ...
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... The pass gates of the multiplexer are constructed such that the V pin can be used to limit the maximum high voltage which will be passed by the PCA9542. This allows the use of different bus voltages on each SCx/SDx pair, so that 3.3 V parts can communicate with 5 V parts without any additional protection. ...
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... Philips Semiconductors 2 2-channel I C multiplexer and interrupt controller BLOCK DIAGRAM SC0 SC1 SD0 SD1 V SS POWER- RESET SCL INPUT FILTER SDA INT[0–1] 1999 Oct C-BUS CONTROL INT LOGIC 3 Product specification PCA9542 INT SW00379 ...
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... SELECTED would cause bit 4 of the control register to be set. The master can CHANNEL then address the PCA9542 and read the contents of the control byte to determine which channel contains the device generating the none interrupt. The master can then reconfigure the PCA9542 to select this 0 (SC0/SD0) channel, and locate the device generating the interrupt and clear it ...
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... Figure 3). SW00363 Figure 2. Definition of start and stop conditions SLAVE MASTER TRANSMITTER/ TRANSMITTER RECEIVER Figure 3. System configuration 5 Product specification PCA9542 SDA SCL P STOP condition SW00365 MASTER TRANSMITTER/ MULTIPLEXER RECEIVER ...
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... PREVIOUS CHANNEL Figure 6. WRITE control register CONTROL REGISTER INT1 INT0 X R/W acknowledge from slave Figure 7. READ control register 6 Product specification PCA9542 9 clock pulse for acknowledgement SW00368 acknowledge from slave NEW CHANNEL t pv SW00480 ...
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... A swin DD swout 2 –100 A swin DD swout 0 Product specification PCA9542 RATING UNIT –0.5 to +7.0 V –0 100 mA 100 mA 400 mW –60 to +150 +70 C LIMITS UNIT UNIT MIN TYP MAX 2.5 3 ...
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... C-bus system, but the requirement 1000 + 250 = 1250 ns (according to the standard-mode rmax SU:DAT HD;DAT HIGH SU;DAT Sr 2 Figure 8. Definition of timing on the I C-bus 8 Product specification PCA9542 2 FAST-MODE I C-BUS UNIT MIN MAX 400 KHz – 1.3 – s – 0.6 – ...
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... Philips Semiconductors 2 2-channel I C multiplexer and interrupt controller TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm 1999 Oct 07 9 Product specification PCA9542 SOT360-1 ...
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... Oct components conveys a license under the Philips’ system provided the system conforms to the [1] Copyright Philips Electronics North America Corporation 1999 Document order number: 10 Product specification PCA9542 2 C patent All rights reserved. Printed in U.S.A. Date of release: 10-99 9397–750–06496 ...