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Référence fabricant


PCA9511A Series 5.5 V 3.5 mA Hot Swappable I2C-bus and SMBus bus Buffer -TSSOP-8

Nom du fabricant: NXP
Emballage standard:
Product Variant Information section
Code de date: 2012
Product Specification Section
Caractéristiques techniques
Attributes Table
Interface Circuit Type: I2C/SMBus
No of Channels: 2
Clock Frequency-Max: 400kHz
Supply Voltage-Nom: 2.7V to 5.5V
Supply Current: 3.5mA
Style d'emballage :  TSSOP-8
Méthode de montage : Surface Mount
Fonctionnalités et applications

The PCA9511A is a hot swappable I2C-bus and SMBus buffer that allows I/O card insertion into a live backplane without corrupting the data and clock buses. Control circuitry prevents the backplane from being connected to the card until a stop command or bus idle occurs on the backplane without bus contention on the card. When the connection is made, the PCA9511A provides bidirectional buffering, keeping the backplane and card capacitances isolated.


  • Bidirectional buffer for SDA and SCL lines increases fan out and prevents SDA and SCL corruption during live board insertion and removal from multipoint backplane systems
  • Compatible with I2C-bus Standard-mode, I2C-bus Fast-mode, and SMBus standards
  • Built-in DV/Dt rise time accelerators on all SDA and SCL lines (0.6 V threshold) requires the bus pull-up voltage and supply voltage (VCC) to be the same
  • Active HIGH ENABLE input
  • Active HIGH READY open-drain output
  • High-impedance SDA and SCL pins for VCC = 0 V
  • 1 V precharge on all SDA and SCL lines
  • Supporting clock stretching and multiple master arbitration/synchronization
  • Operating power supply voltage range: 2.7 V to 5.5 V
  • 0 Hz to 400 kHz clock frequency

View the PCA9511ADP,118 family of I2C 

Pricing Section
7 500
Commande minimale :
2 500
Multiples de :
2 500
Sur commande :
Stock d'usine :Stock d'usine :
Délai d'usine :
12 Semaines
2 325,00 $
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Des droits de douane peuvent s’appliquer en cas d’expédition vers les États-Unis. Une estimation des droits tarifaires sera dans ce cas calculée au moment du paiement.
Prix Internet
2 500+
Product Variant Information section