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MC33993DWB from MOT,Motorola

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MC33993DWB

Manufacturer: MOT

Multiple Switch Detection Interface

Partnumber Manufacturer Quantity Availability
MC33993DWB MOT 10 In Stock

Description and Introduction

Multiple Switch Detection Interface The MC33993DWB is a multiple switch detection interface (MSDI) manufactured by NXP Semiconductors.  

### **Specifications:**  
- **Operating Voltage:** 5V to 27V  
- **Number of Switch Inputs:** 22 (with programmable current sources)  
- **Current Source Range:** 0.5mA to 3.5mA (adjustable)  
- **Communication Interface:** SPI (Serial Peripheral Interface)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-24 Wide Body  

### **Descriptions:**  
The MC33993DWB is designed for automotive and industrial applications to detect switch states (open, short-to-ground, short-to-battery). It integrates programmable current sources for switch debouncing and fault detection.  

### **Features:**  
- **Switch Detection:** Supports 22 switch inputs with configurable current sources.  
- **Fault Detection:** Identifies open circuits, shorts to ground, and shorts to battery.  
- **SPI Interface:** Enables communication with a microcontroller.  
- **Low Power Modes:** Includes sleep and standby modes for power efficiency.  
- **Programmable Current Sources:** Adjustable from 0.5mA to 3.5mA per input.  
- **Diagnostic Features:** Provides real-time fault reporting.  

This device is commonly used in automotive body control modules (BCM) and industrial control systems.

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