-
Part Symbol
-
Footprint
-
3D Model
Available Download Formats
By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy
Part Details for PCA9545APWT by Texas Instruments
Results Overview of PCA9545APWT by Texas Instruments
- Distributor Offerings: (4 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (1 option)
- 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.
PCA9545APWT Information
PCA9545APWT 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 PCA9545APWT
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
|
DISTI #
86009469
|
Verical | I2C Bus Switch 1-Element 1-IN 20-Pin TSSOP T/R RoHS: Compliant Min Qty: 213 Package Multiple: 1 Date Code: 1401 | Americas - 47000 |
|
$1.4750 / $1.7625 | Buy Now |
|
|
Bristol Electronics | 79 |
|
RFQ | ||
|
|
Rochester Electronics | PCA9545A 4-Channel I2C And SMBus Multiplexer With Interrupt Logic And Reset Functions RoHS: Compliant Status: Obsolete Min Qty: 1 | 47150 |
|
$1.1800 / $1.4800 | Buy Now |
|
|
Win Source Electronics | IC INTERFACE SPECIALIZED 20TSSOP / Translating Switch Interface 20-TSSOP | 166710 |
|
$0.3850 / $0.4973 | Buy Now |
Part Details for PCA9545APWT
PCA9545APWT CAD Models
PCA9545APWT Part Data Attributes
|
|
PCA9545APWT
Texas Instruments
Buy Now
Datasheet
|
Compare Parts:
PCA9545APWT
Texas Instruments
4-channel 2.3- to 5.5-V I2C/SMBus switch with interrupt, reset & voltage translation 20-TSSOP -40 to 85
|
| Rohs Code | No | |
| 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 |
Alternate Parts for PCA9545APWT
This table gives cross-reference parts and alternative options found for PCA9545APWT. 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 PCA9545APWT, 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 |
|---|---|---|---|---|
| PCA9545APW | Texas Instruments | $2.3414 | 4-channel 2.3- to 5.5-V I2C/SMBus switch with interrupt, reset & voltage translation 20-TSSOP -40 to 85 | PCA9545APWT vs PCA9545APW |
PCA9545APWT Frequently Asked Questions (FAQ)
-
The maximum frequency of operation for the PCA9545APWT is 400 kHz, which is the maximum clock frequency for the I2C bus.
-
To configure the PCA9545APWT for multiple masters on the same bus, you need to use the enable inputs (ENA0-ENA3) to select which master has control of the bus. You can also use the interrupt output (INT) to detect bus collisions and resolve conflicts between masters.
-
The maximum capacitance load that the PCA9545APWT can drive is 400 pF, which is the maximum capacitance load for the I2C bus.
-
The PCA9545APWT can be reset by pulling the reset input (RST) low for at least 1 ms. This will reset the device to its default state.
-
The power consumption of the PCA9545APWT depends on the operating mode and the frequency of operation. In the active mode, the typical power consumption is 1.5 mA, and in the standby mode, it is 1 μA.