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PCA9541PW
PCA9541PW - Brand New PHILIPS Interface - Specialized
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
DESCRIPTION
The PCA9541 is a 2-to-1 I2C master selector designed for high reliability dual
master I2C applications where system operation is required, even when one
master fails or the controller card is removed for maintenance. The two
masters (e.g., primary and back-up) are located on separate I2C-buses that
connect to the same downstream I2C-bus slave devices. I2C commands are sent
by either I2C-bus master and are used to select one master at a time. Either
master at any time can gain control of the slave devices if the other master
is disabled or removed from the system. The failed master is isolated from the
system and will not affect communication between the on-line master and the
slave devices on the downstream I2C-bus.
FEATURES
• 2-to-1 bi-directional master selector
• I2C interface logic; compatible with SMBus standards
• PCA9541/01 powers-up with Channel 0 selected
• PCA9541/02 powers-up with Channel 0 selected after STOP condition detected
(bus idle) on Channel 0
• PCA9541/03 powers-up with no channel selected and either master can take
control of the bus
• Active LOW Interrupt Input
• 2 Active LOW Interrupt Outputs
• Active LOW Reset Input
• 4 address pins allowing up to 16 devices on the I2C-bus
• Channel selection via I2C-bus
• Bus initialization/recovery function
• Bus traffic sensor
• 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
• Software identical for both masters
• Low stand-by current
• Operating power supply voltage range of 2.3 V to 5.5 V
• 6.0 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 CDM per JESD22-C101
• Latch-up testing is done to JESDEC Standard JESD78 which exceeds 100 mA
• Packages offered: SO16, TSSOP16, HVQFN16
APPLICATIONS
• High reliability systems with dual masters
• Gatekeeper multiplexer on long single bus
• Bus initialization/recovery for slave devices without hardware reset
• Allows masters without arbitration logic to share resources
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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