MC33975 Selling Leads, Price trend, MC33975 DataSheet download, circuit diagram from SeekIC.com

Features: ` Designed to Operate 5.5 V VPWR 28 V` Switch Input Voltage Range -14 V to VPWR` Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol` Selectable Wake-Up on Change of State` Selectable Wetting Current (32 mA or 4.0 mA for switch-to-ground inputs)` 8 Programmable Inputs ...

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SeekIC No. : 004415838 Detail

MC33975: Features: ` Designed to Operate 5.5 V VPWR 28 V` Switch Input Voltage Range -14 V to VPWR` Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol` Selectable Wake-Up on Change of Sta...

MC33975 Data Sheet

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Part Number:: MC33975
Supply Ability:: 5000

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Upload time: 2024/11/27

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Product Details

Description

Features:

` Designed to Operate 5.5 V VPWR 28 V
` Switch Input Voltage Range -14 V to VPWR
` Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol
` Selectable Wake-Up on Change of State
` Selectable Wetting Current (32 mA or 4.0 mA for switch-to-ground inputs)
` 8 Programmable Inputs (Switches to Battery or Ground)
` 14 Switch-to-Ground Inputs
` VPWR Standby Current 100 A Typical, VDD Standby Current 20 A Typical
` Pb-free 32-terminal suffix EK

Specifications

Rating	Symbol	Value	Unit
Electrical Ratings
VDD Supply Voltage (1)	-	- 0.3 to 7.0	V_DC
CS, SI, SO, SCLK, INT, AMUX	-	- 0.3 to 7.0	V_DC
WAKE	-	-0.3 to 40	V_DC
VPWR Supply Voltage	-	-0.3 to 50	V_DC
Switch Input Voltage Range MC33975 PC339775A	-	-14 to 38 -14 to 40	V_DC
Frequency of SPI Operation (VDD = 5.0 V)	-	6.0	MHz
ESD Voltage (1) Human Body Model (2) Applies to all non-input terminals Machine Model Charge Device Model Corner Terminals Interior Terminals	V_ESD	±4000 ±2500 ±200 750 500	V
THERMAL RATINGS
Operating Temperature Ambient Junction Case	T_A T_J T_C	- 40 to 125 - 40 to 150 - 40 to 125	°C
Storage Temperature	T_STG	- 55 to 150	°C
Power Dissipation (3)	P_D	1.7	°C
Thermal Resistance Junction to Ambient Between the Die and the Exposed Die Pad(4)	R_JA R_JC	71 1.2	°C/W
Peak Package Reflow Temperature During Solder Mounting (5)	T_SOLDER	245	°C

Notes
1. ESD testing is performed in accordance with the Human Body Model (C_ZAP = 100 pF, R_ZAP = 1500 ), the Machine Model (C_ZAP = 200
pF, R_ZAP = 0 ), and the Charge Device Model.
2. All Programmable Switches (SP) and Switch-to-Ground (SG) input terminals when tested individually.
3. Maximum power dissipation at T_J =150°C junction temperature with no heatsink used.
4. Thermal resistance between the die and the exposed die pad.
5. Terminal soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits
may cause malfunction or permanent damage to the device.

Description

Multiple Switch Detection Interface with 32mA Suppressed Wakeup

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 a serial peripheral interface (SPI). The 33975 also features a 22-to-1 analog multiplexer for reading inputs as analog.

The 33975 device has two modes of operation, Normal and Sleep.Normal mode allows programming of the device and supplies switch contacts with pull-up or pull-down current as it monitors switch change of state. The Sleep mode provides low quiescent current, which makes the 33975 ideal for automotive and industrial products requiring low sleep state currents.

Improvements of 33975 are a programmable interrupt timer for Sleep mode that can be disabled, switch detection currents of 32 mA and 4.0 mA for switch-to-ground inputs, and an interrupt bit that can be reset.

MC33975

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