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33978 Datasheet

Part Number 33978
Manufacturers NXP
Logo NXP
Description 22-channel multiple switch detection interface
Datasheet 33978 Datasheet33978 Datasheet (PDF)

NXP Semiconductors Technical Data 22 channel multiple switch detection interface with programmable wetting current Document Number: MC33978 Rev. 8.0, 7/2018 33978 34978 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 the input channels as analog inpu.

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Part Number 33977
Manufacturers Freescale Semiconductor
Logo Freescale Semiconductor
Description Single Gauge Driver
Datasheet 33978 Datasheet33977 Datasheet (PDF)

www.DataSheet4U.com Freescale Semiconductor Technical Data Document Number: MC33977 Rev. 2.0, 1/2007 Single Gauge Driver The 33977 is a Serial Peripheral Interface (SPI) Controlled, stepper motor gauge driver Integrated Circuit (IC). This monolithic IC consists of a dual H-Bridge coil driver and its associated control logic. The HBridge drivers are used to automatically control the speed, direction, and magnitude of current through the coils of a two-phase instrumentation stepper motor, simil.

  33978   33978







Part Number 33976
Manufacturers Freescale Semiconductor
Logo Freescale Semiconductor
Description Dual Gauge Driver
Datasheet 33978 Datasheet33976 Datasheet (PDF)

www.DataSheet4U.com Freescale Semiconductor Advance Information Document Number: MC33976 Rev 4.0, 1/2007 Dual Gauge Driver with Configurable Response Time The 33976 is a single-packaged, Serial Peripheral Interface (SPI) controlled, dual step motor gauge driver integrated circuit (IC). This monolithic IC consists of four dual output H-Bridge coil drivers and the associated control logic. Each pair of H-Bridge drivers is used to automatically control the speed, direction, and magnitude of curr.

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Part Number 33975A
Manufacturers Freescale Semiconductor
Logo Freescale Semiconductor
Description Multiple Switch Detection Interface
Datasheet 33978 Datasheet33975A Datasheet (PDF)

www.DataSheet4U.com Freescale Semiconductor Technical Data Document order number: MC33975 Rev 4.0, 08/2005 Multiple Switch Detection Interface with Suppressed Wake-Up and 32mA Wetting Current Freescale offers multiple Switch Detection Interface Devices. The 33975 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 .

  33978   33978







Part Number 33975
Manufacturers Freescale Semiconductor
Logo Freescale Semiconductor
Description Multiple Switch Detection Interface
Datasheet 33978 Datasheet33975 Datasheet (PDF)

www.DataSheet4U.com Freescale Semiconductor Technical Data Document order number: MC33975 Rev 4.0, 08/2005 Multiple Switch Detection Interface with Suppressed Wake-Up and 32mA Wetting Current Freescale offers multiple Switch Detection Interface Devices. The 33975 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 .

  33978   33978







22-channel multiple switch detection interface

NXP Semiconductors Technical Data 22 channel multiple switch detection interface with programmable wetting current Document Number: MC33978 Rev. 8.0, 7/2018 33978 34978 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 the input channels as analog inputs. The analog selected input signal is buffered and provided on the AMUX output pin for the MCU to read. Independent programmable wetting currents are available as needed for the application. A battery and temperature monitor are included in the IC and available via the AMUX pin. The 33978 device has two modes of operation, Normal and Low-power mode (LPM). Normal mode allows programming of the device and supplies switch contacts with pull-up or pull-down current as it monitors the change of state on the switches. The LPM provides low quiescent current, which makes the 33978 ideal for automotive and industrial products requiring low sleep-state currents. Features • Fully functional operation 4.5 V ≤ VBATP ≤ 36 V • Full parametric operation 6.0 V ≤ VBATP ≤ 28 V • Operating switch input voltage range from -1.0 V to 36 V • Eight programmable inputs (switches to battery or ground) • 14 switch-to-ground inputs • Selectable wetting current (2, 6, 8, 10, 12, 14, 16, or 20 mA) • Interfaces dir.


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