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PCA9518

Features: • Expandable 5 channel, bi-directional buffer• I2C-bus and SMBus compatible• Active-HIGH individual repeater enable inputs• Open-drain input/outputs• Lock-up free operation• Supports arbitration and clock stretching across the repeater• Accommoda...

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SeekIC No. : 004456284 Detail

PCA9518: Features: • Expandable 5 channel, bi-directional buffer• I2C-bus and SMBus compatible• Active-HIGH individual repeater enable inputs• Open-drain input/outputs• Lock-up ...

PCA9518 Data Sheet

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Part Number:
PCA9518
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Expandable 5 channel, bi-directional buffer
• I2C-bus and SMBus compatible
• Active-HIGH individual repeater enable inputs
• Open-drain input/outputs
• Lock-up free operation
• Supports arbitration and clock stretching across the repeater
• Accommodates standard mode and fast mode I2C devices andmultiple masters
• Powered-off high-impedance I2C pins
• Operating supply voltage range of 3.0 V to 3.6 V
• 5 V tolerant I2C and enable pins
• 0 kHz to 400 kHz clock frequency2
• ESD protection exceeds 2000 V HBM per JESD22-A114, 
   200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101.
• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA.
• Package offerings: SO and TSSOP



Specifications

symbol partameter conditions LIMITS unit
MIN MAX
VCC  to GND
 Supply voltage range VCC
   -0.5  +7  V
Vbus
 Voltage range I 2C-bus, SCL or SDA    -0.5  +7  V
I DC input current    -  50  MA
Ptot Power dissipation    - 300  MW
Tstg Storage temperature range    -55  +250  °C
Tamb Operating ambient temperature    -40  +85  °C



Description

   The PCA9518 is a BiCMOS integrated circuit intended for application in I2C and SMBus systems While retaining all the operating modes and features of the I2C system, PCA9518 permits extension of the I2C-bus by buffering both the data (SDA) and the clock (SCL) lines, thus enabling virtually unlimited buses of 400 pF.

   The I2C-bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9518 enables the system designer to divide the bus of PCA9518 into an unlimited number of segments off of a hub where any segment to segment transition sees only one repeater delay and is multiple master capable on each segment. Using multiple PCA9518 parts, any width hub (in multiples of five)1 can be implemented using the expansion pins.




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