Position: Home  > All Categories> Integrated Circuits (ICs) > PCA9540B

PCA9540B

Features: 1-of-2 bi-directional translating multiplexerI2 C interface logic; compatible with SMBus standardsChannel selection via I2 C-busPower up with all multiplexer channels deselectedLow RdsON switchesAllows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V busesNo glitch on power-...

product image

PCA9540B Picture
See larger image
SeekIC No. : 004456296 Detail

PCA9540B: Features: 1-of-2 bi-directional translating multiplexerI2 C interface logic; compatible with SMBus standardsChannel selection via I2 C-busPower up with all multiplexer channels deselectedLow RdsON s...

PCA9540B Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
PCA9540B
Supply Ability:
5000

Price Break

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

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/11/25

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

1-of-2 bi-directional translating multiplexer
I2 C interface logic; compatible with SMBus standards
Channel selection via I2 C-bus
Power up with all multiplexer channels deselected
Low RdsON  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 stand-by current
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant Inputs
0 to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V per JESD22-C101
Latch-up testing is done to JESDEC Standard JESD78 which exceeds 100 mA
Packages Offered:  SO8, TSSOP8


Pinout

Connection Diagram


Specifications

symbol partameter conditions RATING unit
VDD DC supply voltage   -0.5to +7.0   V
VI DC input voltage    -0.5 to+7.0  V
Ii DC input current   ±20  MA
IO DC output current   ±25  MA
I DC DC Supply current   ±100  MA
ISS DC Supply current   ±100  MA
Ptot total power dissipation   400  MW
Tstg Storage temperature range   60 to+150  °C
Tamb Operating ambient temperature   0to70  °C



Description

   The PCA9540B is a 1-of-2 bi-directional 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 of PCA9540B puts the registers in their default state and initializes the I2C state machine with no channels selected.
 
    The pass gates of the multiplexer are constructed such that the VDDpin can be used to limit the maximum high voltage ofPCA9540B which will be passed by the PCA9540B. This allows the use of different bus voltages on each SCx/SDx pair, so that 1.8 V, 2.5, or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors can pull the bus up to the desired voltage level for this channel. All I/O pins are 5 V tolerant.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Programmers, Development Systems
ARDUINO IIC/I2C 液晶模块
JTAG-SMT2
Resistors
A101G
3006P-1-205LF
Motors, Solenoids, Driver Boards/Modules
IHSS57-36-20
ASD-B2-1521-B
Power Supplies - Board Mount
HC-06
PM150RSA060-S81AH0G
Isolators
HCPL062N
HCPL316J
Prototyping Products
AVT4168
DE1
View more