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NCA9511 - Hot Swappable I2C Bus and SMBus Buffer

Datasheet Summary

Description

6.1.

OVERVIEW7 6.2.

FUNCTIONAL BLOCK DIAGRAM 7 6.3.

Features

  • Supports bidirectional data transfer of I2C bus signals.
  • Operating power-supply voltage range of 2.7 V to 5.5 V.
  • TA ambient air temperature range of -40 ℃ to 105 ℃.
  • 1-V pre-charge on all SDA and SCL lines prevents.
  • corruption during live insertion.
  • Accommodates standard mode and fast mode I2C devices.
  • Supports clock stretching, arbitration and synchronization.
  • Powered-off high-impedance I2C pins.

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Datasheet Details

Part number NCA9511
Manufacturer NOVOSENSE
File Size 2.90 MB
Description Hot Swappable I2C Bus and SMBus Buffer
Datasheet download datasheet NCA9511 Datasheet
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Full PDF Text Transcription

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NCA9511 Hot Swappable I2C Bus and SMBus Buffer Datasheet (EN) 1.2 Product Overview The NCA9511 is a hot-swappable I2C bus buffer that supports I/O card insertion into a live backplane without corruption of the data and clock buses. Control circuitry prevents the backplane-side I2C lines (in) from being connected to the card-side I2C lines (out) until a stop command or bus idle condition occurs on the backplane without bus contention on the card. When the connection is made, this device provides bidirectional buffering, keeping the backplane and card capacitances separated. During insertion, the SDA and SCL lines are pre-charged to 1 V to minimize the current required to charge the parasitic capacitance of the device.
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