丝印：34978；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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恩XP

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

恩XP

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

The NXP® MC34978 is a multiple switch detection interface (MSDI) designed to detect the closing and opening of up to 22 switch contacts in industrial environments.\nThe switch status, either open or closed, is transferred to the microprocessor unit through a serial peripheral interface (SPI)\nThis S • 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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QFN

恩XP

上传：深圳市万佳诚业科技有限公司

10-VFLGA

Memsic Inc

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