| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,564 pcs
|
2564 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Applications | |
| Interface | |
| Lead Spacing | |
| Mounting Type | |
| Operating Voltage | |
| Supplier Device Package | |
| Tape & Reel | |
| Temperature Range |
The MC33975EK from NXP Semiconductors is a specialized interface integrated circuit designed for detecting the status of up to 22 switch contacts. It communicates with microprocessors via a 3.3 V/5.0 V SPI protocol, transferring switch status (open or closed) for analysis.
This device offers flexibility with 14 switch-to-ground inputs and 8 programmable inputs. It supports selectable wetting currents of 32 mA or 4.0 mA for switch-to-ground inputs, enhancing its adaptability. The operating voltage range is from 5.5 V to 28 V, with switch input voltages ranging from -14 V to 38 V.
Designed for applications requiring switch status verification, the MC33975EK is suitable for automotive and industrial control systems. It operates in Normal and Sleep modes, with the Sleep mode providing low quiescent current (100 µA VPWR, 20 µA VDD). The IC is housed in a 32-SOIC-EP package and is surface-mountable.
Key features include selectable wake-up on change of state and a 22-to-1 analog multiplexer for reading inputs as analog signals. The device is built using SMARTMOS technology.
| Qty | Low | High |
|---|---|---|
| 1+ | $6.39 | $6.39 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 5.5 V to 28 V.
The MC33975EK uses an SPI serial interface.
The MC33975EK supports 14 switch-to-ground inputs and 8 programmable inputs.
The selectable wetting current is 4.0 mA or 32 mA for switch-to-ground inputs.
The operating temperature range is -40 °C to 125 °C.