丝印：33978；Package：SOICW-EP；22 channel multiple switch detection interface with programmable wetting current

The 33978 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). This SMARTMOS device also features a 24-to-1 analog multiplexer for reading th

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22-channel multiple switch detection interface with programmable wetting current

Features and benefits Fully functional operation from 4.5 V to 36 V • Full parametric operation from 6.0 V to 28 V • Low-power mode current IBATP = 30 μA and IDDQ = 10 μA • 22 Switch detection channels – 14 Switch-to-Ground (SG) inputs – 8 Programmable switch (SP) inputs – Switch-to-Ground

文件：1.09465 Mbytes 页数：73 Pages

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Switch Detection Interface, 22-switches, 3.3 V / 5.0 V SPI , SOICW-EP 32

The NXP® MC33978 is a multiple switch detection interface (MSDI) 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 through a SPI in automotive environments.\nThis SMARTMOS® device features a 24-to-1 • Designed to operate 4.5 V ≤ VBATP ≤ 36 V\n• Switch input voltage range -14 V to VPWR, 36 V Max.\n• Interfaces directly to an MCU using 3.3 V / 5.0 V SPI protocol • Selectable wake-up on change of state\n • Selectable wetting current (2, 6, 8, 10, 12, 14, 16, or 20 mA)\n• 8 programmable inputs (swi;

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QFP48

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上传：深圳庞田科技有限公司

HVQFN48

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上传：深圳市赛特兴科技有限公司