| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,124 pcs
|
1124 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
460 pcs
|
460 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
238 pcs
|
238 pcs | On Request | 1 | On Request | On Request | 1527+57 | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Applications | |
| Automotive Grade | |
| Industrial Grade | |
| Interface | |
| Latch-up Performance | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Number of Channels | |
| Supplier Device Package | |
| Supplier Package | |
| Voltage |
The Texas Instruments PCA9544APWR is a versatile 4-channel I2C and SMBus multiplexer. It facilitates voltage-level translation between buses operating at 1.8V, 2.5V, 3.3V, and 5V, making it suitable for mixed-voltage systems.
This device supports a wide operating supply voltage range from 2.3V to 5.5V and can handle clock frequencies up to 400kHz. It features four active-low interrupt inputs and an active-low interrupt output, along with three address pins that allow up to eight devices on the I2C bus. The PCA9544APWR is designed for surface mount installation and comes in a 20-TSSOP package.
Key electrical characteristics include 5.5V tolerant inputs, low R ON switches, and protection against glitches during power-up. It also supports hot insertion and has low standby current. The component offers robust ESD protection exceeding JESD 22 standards for human-body, machine, and charged-device models, and latch-up performance exceeds 100 mA per JESD 78.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.66 | $0.66 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9544APWR operates from 2.3V to 5.5V.
The PCA9544APWR is packaged in a 20-TSSOP surface-mount package.
The PCA9544APWR supports 4 channels.
The maximum clock frequency is 400 kHz.
The operating temperature range is -40°C to 85°C.