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Part Details for PCA9545APW by Texas Instruments
Results Overview of PCA9545APW by Texas Instruments
- Distributor Offerings: (12 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
PCA9545APW Information
PCA9545APW by Texas Instruments 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 PCA9545APW
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
28AH4657
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Newark | Translating Sw, Bidirectional, 85Deg C, No. Of Inputs:4, Output Current:10Ma, Propagation Delay:1Ns, No. Of Pins:20Pins, Logic Case Style:Tssop, Supply Voltage Min:2.3V, Supply Voltage Max:5.5V, Operating Temperature Min:-40°C, Rohs Compliant: Yes |Texas Instruments PCA9545APW RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 0 |
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$3.0600 / $4.0200 | Buy Now |
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DISTI #
V99:2348_07309818
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Arrow Electronics | I2C Bus Switch 1-Element 1-IN 20-Pin TSSOP Tube RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 35 Weeks Date Code: 1340 | Americas - 3 |
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$0.7330 | Buy Now |
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DISTI #
86020044
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Verical | I2C Bus Switch 1-Element 1-IN 20-Pin TSSOP Tube RoHS: Compliant Min Qty: 193 Package Multiple: 1 Date Code: 1401 | Americas - 20463 |
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$1.6375 / $1.9500 | Buy Now |
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DISTI #
86019859
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Verical | I2C Bus Switch 1-Element 1-IN 20-Pin TSSOP Tube RoHS: Compliant Min Qty: 193 Package Multiple: 1 Date Code: 1301 | Americas - 1350 |
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$1.6375 / $1.9500 | Buy Now |
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Bristol Electronics | 51 |
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RFQ | ||
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Bristol Electronics | 48 |
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RFQ | ||
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Quest Components | 9545 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO20 | 56 |
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$2.9000 / $4.3500 | Buy Now |
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Quest Components | 9545 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO20 | 52 |
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$2.1750 / $4.3500 | Buy Now |
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Quest Components | 9545 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO20 | 40 |
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$2.9000 / $4.3500 | Buy Now |
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Quest Components | 9545 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO20 | 16 |
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$2.4500 / $3.9200 | Buy Now |
Part Details for PCA9545APW
PCA9545APW CAD Models
PCA9545APW Part Data Attributes
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PCA9545APW
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
PCA9545APW
Texas Instruments
4-channel 2.3- to 5.5-V I2C/SMBus switch with interrupt, reset & voltage translation 20-TSSOP -40 to 85
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | TSSOP | |
| Package Description | TSSOP-20 | |
| Pin Count | 20 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | Texas Instruments |
PCA9545APW Frequently Asked Questions (FAQ)
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The PCA9545APW can support I2C bus frequencies up to 400 kHz, but it's recommended to limit it to 100 kHz for reliable operation.
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Yes, the PCA9545APW can switch between multiple I2C buses with different voltage levels, but ensure that the voltage levels are within the recommended operating range of 1.65 V to 5.5 V.
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To ensure correct switching, ensure that the enable pins (EN0-EN3) are properly controlled, and the bus selection pins (A0-A2) are correctly configured to select the desired I2C bus.
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The PCA9545APW 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.
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Yes, the PCA9545APW is suitable for hot-swappable I2C bus applications, but ensure that the power sequencing and bus switching are properly controlled to avoid bus conflicts.