Electronic Components Datasheet Search |
|
PCA9543D Datasheet(PDF) 2 Page - NXP Semiconductors |
|
PCA9543D Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 15 page Philips Semiconductors Product data sheet PCA9543 2-channel I2C switch with interrupt logic and reset 2 2004 Oct 01 FEATURES • 1-of-2 bi-directional translating switches • I2C 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 • Channel selection via I2C-bus, in any combination • Power up with all switch channels deselected • Low Rds ON 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 stand-by current • Operating power supply voltage range of 2.3 V to 5.5 V • 5 V tolerant Inputs • 0 kHz to 400 kHz clock frequency • ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per JESD22-A115 and 1000 V per JESD22-C101 • Latchup testing is done to JESDEC Standard JESD78 which exceeds 100 mA • Packages offered: SO14, TSSOP14 DESCRIPTION The PCA9543 is a bi-directional 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 to INT3, one for each of the downstream pairs, are provided. One interrupt output INT, which acts as an AND of the two interrupt inputs, is provided. An active-LOW reset input allows the PCA9543 to recover from a situation where one of the downstream I2C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I2C state machine and causes all the channels to be deselected, as does the internal power on reset function. The pass gates of the switches are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9543. This allows the use of different bus voltages on each SCx/SDx pair, so that 1.8 V, 2.5 V, or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant. PIN CONFIGURATION 1 2 3 4 5 6 78 9 10 11 12 13 14 A0 A1 RESET INT0 SD0 SC0 VSS VDD SDA SCL SD1 SC1 INT1 INT SW00803 Figure 1. Pin configuration PIN DESCRIPTION PIN NUMBER SYMBOL FUNCTION 1 A0 Address input 0 2 A1 Address input 1 3 RESET Active LOW reset input 4 INT0 Interrupt input 0 5 SD0 Serial data 0 6 SC0 Serial clock 0 7 VSS Supply ground 8 INT1 Interrupt input 1 9 SD1 Serial data 1 10 SC1 Serial clock 1 11 INT Interrupt output 12 SCL Serial clock line 13 SDA Serial data line 14 VDD Supply voltage ORDERING INFORMATION PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER 14-Pin Plastic SO –40 °C to +85 °C PCA9543D SOT108-1 14-Pin Plastic TSSOP –40 °C to +85 °C PCA9543PW SOT402-1 Standard packing quantities and other packaging data are available at www.standardproducts.philips.com/packaging. |
Similar Part No. - PCA9543D |
|
Similar Description - PCA9543D |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |