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Référence fabricant


PCA9545A Series 4 Channel I2C Bus switch w/ interrupt logic and reset -TSSOP20

Modèle ECAD:
Nom du fabricant: NXP
Emballage standard:
Product Variant Information section
Code de date: 2227
Product Specification Section
NXP PCA9545APW,112 - Caractéristiques techniques
Attributes Table
Interface Type: I2C Bus
No of Channels: 4
Clock Frequency-Max: 400kHz
Supply Voltage-Nom: 2.3V to 3.6V
Supply Current: 10µA
Style d'emballage :  TSSOP-20
Fonctionnalités et applications

The PCA9545APW,112 is aprt of PCA9545A Series with a quad bidirectional translating switch controlled via the I2C-bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels.Any individual SCx/SDx channel or combination of channels can be selected, Available in a package of TSSOP-20.


  • 1-of-4 bidirectional translating switches
  • I2C-bus interface logic; compatible with SMBus standards
  • 4 active LOW interrupt inputs
  • Active LOW interrupt output and 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
  • Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
  • No glitch on power-up
  • Low standby current
  • 5 V tolerant Inputs
  • Alternate address versions A, B and C allow up to a total of 12 devices on the bus for
    larger systems or to resolve address conflicts
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM Per JESD22-C101
  • Latch-up protection exceeds 100 mA per JESD78
  • Three packages offered: SO20, TSSOP20, and HVQFN20

View the complete series of PCA I2C bus

Pricing Section
Stock global :
1 275
d’Allemagne (En ligne seulement):
1 275
Sur commande :
Stock d'usine :Stock d'usine :
Délai d'usine :
17 Semaines
Commande minimale :
Multiples de :
82,50 $
Prix Internet
1 125
2 250
5 625+
Product Variant Information section