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Manufacturer Part #

PCA9540BDP,118

PCA9540 Series 2-Channel I2C Bidirectional Translating Multiplexer - TSSOP-8

Product Specification Section
Technical Attributes
Attributes Table
Interface Circuit Type: I2C
No of Channels: 2
Clock Frequency-Max: 400kHz
Supply Voltage-Nom: 2.3V to 5.5V
Supply Current: ±100mA
Package Style:  TSSOP-8
Mounting Method: Surface Mount
Features & Applications

The PCA9540B is a 1-of-2 bidirectional translating multiplexer, controlled via the I2C-bus. The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register.

A power-on reset function puts the registers in their default state and initializes the I2C-bus state machine with no channels selected.

Features:

  • 1-of-2 bidirectional translating multiplexer
  • I2C-bus interface logic; compatible with SMBus standards
  • Channel selection via I2C-bus
  • Power up with all multiplexer channels deselected
  • Low Ron 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 standby current
  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 5 V tolerant inputs
  • 0 Hz to 400 kHz clock frequency
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD2-A115 and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Packages offered: SO8, TSSOP8

 

Pricing Section
Stock:
50,000
Minimum Order:
2,500
Multiple Of:
2,500
On Order:
0
Factory Stock:Factory Stock:
0
Factory Lead Time:
12 Weeks
Total
$1,775.00
USD
Quantity
Web Price
2,500
$0.71
5,000
$0.575
7,500
$0.57
10,000+
$0.565