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| Place of Origin | Call |
| Brand Name | Freescale / NXP |
| Certification | ROHS |
| Model Number | MC33972ATEWR2 |
Product Details
Multiple Switch Detection Interface with Suppressed Wake-up
The 33972 Multiple Switch Detection Interface with suppressed wake-up is designed to detect the closing and opening of up to 22 switch contacts. The switch status, either open or closed, is transferred to the microprocessor unit (MCU) through a serial peripheral interface (SPI). The device also features a 22-to-1 analog multiplexer for reading inputs as analog. The analog input signal is buffered and provided on the AMUX output pin for the MCU to read.
• Designed to operate 5.5 V ≤ VPWR ≤ 26 V
• Switch input voltage range -14 V to VPWR, 40 V Max
• Interfaces directly to MPU using 3.3 V/5.0 V SPI protocol
• Selectable wake-up on change of state
• Selectable wetting current (16 or 2.0 mA)
• 8 programmable inputs (switches to battery or ground)
• 14 switch-to-ground inputs
• Typical standby current - VPWR = 100 μA and VDD = 20 μA
• Active interrupt (INT) on change-of-switch state
| Attribute | Attribute Value |
|---|---|
| Manufacturer | Freescale / NXP |
| Product Category | Specialized Interfaces |
| Series | MC33972 |
| Product | Switch Detectors |
| Type | Switch Detection Interface |
| Packaging | Alternate Packaging |
| Unit-Weight | 0.017990 oz |
| Package-Case | 32-BSSOP Exposed Pad |
| Operating-Temperature | - |
| Mounting-Type | Surface Mount |
| Applications | Switch Monitoring |
| Interface | SPI Serial |
| Voltage-Supply | 3.1 V ~ 5.25 V |
| Supplier-Device-Package | 32-SOIC |
| Current-Supply | - |
| Number-of-Inputs | - |
| Proximity Sensor | - |
| LED-Driver-Channels | - |
| Resolution | - |
Who we are?
FAQ
Q: Are you trading company or manufacturer?
A: We are original manufacturer OF Integrated Circuit Chip . We can do OEM/ODM business.
Q: How long is your delivery time?
A: Group buying delivery time: 30-60 days; General delivery time: 20 days.
Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
Q: How to buy your products?
A: You can buy the products from our company directly.Normally the procedure is sign the contract, payment by T/T,Contact the shipping company to delivery the goods to your country.
Q: What is the warranty ?
A: The free warranty is one year from the day of Commissioning qualified.If there is any fault for our products within the free warranty period, we will repair it and change the fault assembly for free.
6-TSSOP,
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