pca9542a NXP Semiconductors, pca9542a Datasheet
pca9542a
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pca9542a Summary of contents
Page 1
... PCA9542A 2 2-channel I C multiplexer and interrupt logic Product data sheet Supersedes data of 2004 Jul 27 INTEGRATED CIRCUITS 2004 Sep 29 ...
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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 PCA9542A. This allows the use of different bus voltages on each SCx/SDx pair, so that 1 3.3 V parts can communicate with 5 V parts without any additional protection. ...
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... C multiplexer and interrupt logic BLOCK DIAGRAM PCA9542A SC0 SC1 SD0 SD1 V SS POWER- RESET SCL INPUT FILTER SDA INT[0–1] 2004 Sep 29 SWITCH CONTROL LOGIC 2 I C-BUS CONTROL INT LOGIC Figure 2. Block diagram 3 Product data sheet PCA9542A INT SW02270 ...
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... CONTROL REGISTER Following the successful acknowledgement of the slave address, the bus master will send a byte to the PCA9542A which will be stored in the Control Register. If multiple bytes are received by the PCA9542A, it will save the last byte received. This register can be ...
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... DC Characteristics section of this datasheet). In order for the PCA9542A to act as a voltage translator, the V voltage should be equal to, or lower than the lowest bus voltage. For example, if the main bus was running and the downstream buses were 3 ...
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... Figure 8). SW00363 Figure 7. Definition of start and stop conditions SLAVE MASTER TRANSMITTER/ TRANSMITTER RECEIVER Figure 8. System configuration 6 Product data sheet PCA9542A SDA SCL P STOP condition SW00365 MASTER TRANSMITTER/ MULTIPLEXER ...
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... CONTROL REGISTER INT1 INT0 X B2 R/W acknowledge no acknowledge from slave from master Figure 11. READ control register 7 Product data sheet PCA9542A 9 clock pulse for acknowledgement SW00368 acknowledge from slave SW00801 last byte stop condition SW00481 ...
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... SDA SD0 SCL SC0 INT0 INT A2 SD1 A1 SC1 A0 V INT1 SS PCA9542A Figure 12. Typical Application CONDITIONS 8 Product data sheet PCA9542A V = 2.7 – 5.5 V SEE NOTE (1) CHANNEL 2.7 – 5.5 V SEE NOTE (1) CHANNEL 1 SW02271 RATING UNIT –0.5 to +7.0 V –0 100 mA 100 mA 400 mW – ...
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... DD swout 2 –100 A swin DD swout 2 –100 A swin DD swout 0 Product data sheet PCA9542A = 4 5.5 V.) DD LIMITS UNIT UNIT MIN TYP MAX 2.3 3.6 V – – 0 – 1.6 2.1 V –0.5 – 0 0.7 V – 6 ...
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... 5 –100 A swin DD swout 4 –100 A swin DD swout 0 Product data sheet PCA9542A = 2 3.6 V.) DD LIMITS UNIT UNIT MIN TYP MAX 4.5 5.5 V – 25 100 A – 0 – 1.7 2.1 V –0.5 – 0 0.7 V – ...
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... R and and the 15 pF load capacitance HD;DAT HIGH SU;DAT Sr 2 Figure 13. Definition of timing on the I C-bus 11 Product data sheet PCA9542A FAST-MODE 2 I C-bus UNIT MAX MIN MAX 1 1 0.3 — 0.3 ns 100 0 400 kHz — 1.3 — s — ...
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... Philips Semiconductors 2 2-channel I C multiplexer and interrupt logic SO14: plastic small outline package; 14 leads; body width 3.9 mm 2004 Sep 29 12 Product data sheet PCA9542A SOT108-1 ...
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... Philips Semiconductors 2 2-channel I C multiplexer and interrupt logic TSSOP14: plastic thin shrink small outline package; 14 leads; body width 4.4 mm 2004 Sep 29 13 Product data sheet PCA9542A SOT402-1 ...
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... V: change Typ. limit from “–” 4 5.5 V) table on page 10 3 5.5 V” to “ change Typ. limit from and change Max. limit from + change Max limit from +100 Product data sheet PCA9542A = 4 5.5 V” DD ...
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... Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Fax: + 24825 Document number: 15 Product data sheet PCA9542A 2 C patent Koninklijke Philips Electronics N.V. 2004 All rights reserved. Published in the U.S.A. Date of release: 09-04 ...