Datasheets
PCA9540BDP/Q900J by: NXP Semiconductors

PCA9540B - 2-channel I²C-bus multiplexer TSSOP 8-Pin

Part Details for PCA9540BDP/Q900J by NXP Semiconductors

Results Overview of PCA9540BDP/Q900J by NXP Semiconductors

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Applications Education and Research Consumer Electronics Internet of Things (IoT) Industrial Automation Computing and Data Storage Aerospace and Defense Healthcare Telecommunications Communication and Networking Automotive Robotics and Drones

PCA9540BDP/Q900J Information

PCA9540BDP/Q900J by NXP Semiconductors is a Multiplexer/Demultiplexer.
Multiplexer/Demultiplexers are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Price & Stock for PCA9540BDP/Q900J

Part # Distributor Description Stock Price Buy
DISTI # 3128708RL
Farnell I2C/SMBUS MULTIPLEXER, -40 TO 105DEG C RoHS: Compliant Min Qty: 10 Lead time: 16 Weeks, 0 Days Container: Reel 5
  • 10 $1.9258
  • 50 $1.7930
  • 100 $1.6469
  • 250 $1.5406
  • 500 $1.3414
  • 1,000 $1.1156
  • 2,500 $1.0346
$1.0346 / $1.9258 Buy Now
DISTI # 3128708
Farnell I2C/SMBUS MULTIPLEXER, -40 TO 105DEG C RoHS: Compliant Min Qty: 1 Lead time: 16 Weeks, 0 Days Container: Cut Tape 5
  • 1 $2.2578
  • 10 $1.9258
  • 50 $1.7930
  • 100 $1.6469
  • 250 $1.5406
  • 500 $1.3414
  • 1,000 $1.1156
  • 2,500 $1.0346
$1.0346 / $2.2578 Buy Now
DISTI # 568-13623-1-ND
DigiKey IC INTERFACE SPECIALIZED 8TSSOP Min Qty: 1 Lead time: 16 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 1738
In Stock
  • 1 $1.9700
  • 10 $1.4520
  • 25 $1.3224
  • 100 $1.1800
  • 250 $1.1121
  • 500 $1.0712
  • 1,000 $1.0375
  • 2,500 $1.0020
  • 5,000 $0.9805
  • 7,500 $0.9698
$0.9698 / $1.9700 Buy Now
DISTI # PCA9540BDP/Q900J
Avnet Americas Multiplexer 2 x 2:1 8-Pin TSSOP T/R - Tape and Reel (Alt: PCA9540BDP/Q900J) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 16 Weeks, 0 Days Container: Reel 0
  • 2,500 $0.8809
  • 5,000 $0.8737
  • 10,000 $0.8665
  • 15,000 $0.8592
  • 20,000 $0.8520
$0.8520 / $0.8809 Buy Now
DISTI # 771-PCA9540BDP/Q900J
Mouser Electronics Encoders, Decoders, Multiplexers & Demultiplexers 2-channel I2C-bus multiplexer RoHS: Compliant 1807
  • 1 $1.9700
  • 10 $1.4600
  • 25 $1.3300
  • 100 $1.1800
  • 250 $1.1200
  • 500 $1.0800
  • 1,000 $1.0400
  • 2,500 $0.9720
  • 5,000 $0.9390
$0.9390 / $1.9700 Buy Now
DISTI # 75723306
Verical 2-channel I2C-bus multiplexer Automotive AEC-Q100 RoHS: Compliant Min Qty: 30 Package Multiple: 1 Date Code: 2329 Americas - 850
  • 30 $1.6800
  • 50 $1.2000
  • 100 $1.1200
  • 500 $1.0000
$1.0000 / $1.6800 Buy Now
NXP Semiconductors 2-channel I2C-bus multiplexer, Reel 13" Q1/T1 RoHS: Compliant pbFree: Yes Lead time: 16 Weeks, 0 Days Container: Reel 4985
  • 1 $1.0300
  • 25 $1.0300
  • 100 $1.0300
$1.0300 Buy Now
DISTI # PCA9540BDP/Q900J
Chip One Stop Semiconductors RoHS: Compliant Min Qty: 1 Lead time: 0 Weeks, 1 Days Container: Cut Tape 850
  • 1 $1.6800
  • 10 $1.2000
  • 50 $1.1200
  • 100 $1.0000
  • 500 $0.8950
  • 1,000 $0.8470
  • 2,000 $0.8260
$0.8260 / $1.6800 Buy Now
Cytech Systems Limited IC INTERFACE SPECIALIZED 8TSSOP 2500
RFQ
DISTI # PCA9540BDP/Q900J
EBV Elektronik Multiplexer 2 x 21 8Pin TSSOP TR (Alt: PCA9540BDP/Q900J) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 18 Weeks, 0 Days EBV - 0
Buy Now
Vyrian Logic ICs 1431
RFQ

Part Details for PCA9540BDP/Q900J

PCA9540BDP/Q900J CAD Models

PCA9540BDP/Q900J Part Data Attributes

PCA9540BDP/Q900J NXP Semiconductors
Buy Now Datasheet
Compare Parts:
PCA9540BDP/Q900J NXP Semiconductors PCA9540B - 2-channel I²C-bus multiplexer TSSOP 8-Pin
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer NXP SEMICONDUCTORS
Part Package Code TSSOP
Pin Count 8
Manufacturer Package Code SOT505-1
Reach Compliance Code compliant
Factory Lead Time 16 Weeks
Samacsys Manufacturer NXP
Logic IC Type MULTIPLEXER
Moisture Sensitivity Level 1
Packing Method TR, 13 INCH
Peak Reflow Temperature (Cel) 260

Alternate Parts for PCA9540BDP/Q900J

This table gives cross-reference parts and alternative options found for PCA9540BDP/Q900J. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of PCA9540BDP/Q900J, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
PCA9540BDP/G NXP Semiconductors Check for Price PCA9540BDP/G PCA9540BDP/Q900J vs PCA9540BDP/G
PCA9540BDP/DG,118 NXP Semiconductors Check for Price PCA9540B - 2-channel I²C-bus multiplexer TSSOP 8-Pin PCA9540BDP/Q900J vs PCA9540BDP/DG,118
Part Number Manufacturer Composite Price Description Compare
PCA9540BDP,118 NXP Semiconductors $0.8635 PCA9540B - 2-channel I²C-bus multiplexer TSSOP 8-Pin PCA9540BDP/Q900J vs PCA9540BDP,118
PCA9540BD,118 NXP Semiconductors $1.1105 PCA9540B - 2-channel I²C-bus multiplexer SOIC 8-Pin PCA9540BDP/Q900J vs PCA9540BD,118
PCA9540BDP NXP Semiconductors Check for Price IC 9540 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO8, 3 MM, PLASTIC, SOT505-1, TSSOP-8, Multiplexer/Demultiplexer PCA9540BDP/Q900J vs PCA9540BDP
PCA9540BDP/Q900,118 NXP Semiconductors Check for Price Multiplexer PCA9540BDP/Q900J vs PCA9540BDP/Q900,118
PCA9540BDP/Q900 NXP Semiconductors Check for Price Multiplexer PCA9540BDP/Q900J vs PCA9540BDP/Q900
935276036118 NXP Semiconductors Check for Price Multiplexer PCA9540BDP/Q900J vs 935276036118
PCA9540BD,112 NXP Semiconductors Check for Price PCA9540B - 2-channel I²C-bus multiplexer SOIC 8-Pin PCA9540BDP/Q900J vs PCA9540BD,112
PCA9540BGD,125 NXP Semiconductors Check for Price PCA9540B - 2-channel I²C-bus multiplexer SON 8-Pin PCA9540BDP/Q900J vs PCA9540BGD,125
PCA9540BGD NXP Semiconductors Check for Price 9540 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO8, 3 X 2 MM, 0.50 MM HEIGHT, PLASTIC, SOT996-2, XSON-8 PCA9540BDP/Q900J vs PCA9540BGD
PCA9540BD NXP Semiconductors Check for Price IC 9540 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO8, 3.90 MM, PLASTIC, MS-012, SOT96-1, SOP-8, Multiplexer/Demultiplexer PCA9540BDP/Q900J vs PCA9540BD

PCA9540BDP/Q900J Frequently Asked Questions (FAQ)

  • The PCA9540 can support I2C bus frequencies up to 400 kHz, but it's recommended to limit it to 100 kHz for reliable operation.

  • To configure the PCA9540 in dual-bus mode, connect the SCL/SDA pins of the two buses to the corresponding pins on the PCA9540, and use the EN pin to enable or disable each bus. See the datasheet for specific pin connections and control logic.

  • The PCA9540 can drive up to 400 pF of capacitance on the I2C bus, but it's recommended to limit it to 200 pF for reliable operation.

  • The PCA9540 can be reset by pulling the RESET pin low for at least 1 ms. This will reset the device to its default state.

  • Yes, the PCA9540 is compatible with both 3.3V and 5V devices on the same bus, but ensure that the voltage levels are compatible with the devices on the bus.

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