MC34975: MSDI with Suppressed Wake-up and 32 mA Wetting Current
The NXP® MC34975 Multiple Switch Detection Interface (MSDI) with Suppressed Wake-up is designed to detect the closing and opening of up to 22 switch contacts.
Simplified Application Drawing Block Diagram - G-30106
32SOICWEP_PROD
特性
- Designed to operate from 5.5 V <= VPWR <= 28 V
- Switch input voltage range: -14 V to VPWR 40 V Max
- Interfaces to microprocessor using 3.3 V/5.0 V SPI protocol
- Selectable wake-up on change of state
- 14 switch-to-ground inputs
- Eight programmable inputs (switches to supply or ground)
- Selectable wetting current (32 mA or 4.0 mA for switch-to-ground inputs)
- Sleep State current: VPWR 100 µA, VDD 20 µA
Recommended Documentation (1)
| Name/Description | Type | Modified Date |
|---|---|---|
| MC34975, Multiple Switch Detection Interface with Suppressed Wake-up and 32 mA Wetting Current - Data Sheet (REV 1.0) PDF (675.0 kB) MC34975 | Data Sheets | 27 Sep 2013 |
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| MC34975, Multiple Switch Detection Interface with Suppressed Wake-up and 32 mA Wetting Current - Data Sheet (REV 1.0) PDF (675.0 kB) MC34975 | 27 Sep 2013 |
Selector Guides (1)
| Name/Description | Modified Date |
|---|---|
| SG200, Industrial Selector Guide 3Q 2015 - Selector Guide (REV 8.0) PDF (613.2 kB) SG200 | 27 Aug 2015 |
Ordering Information
| Product | Status | Status | Device Function | Budgetary Price excluding tax(US$) | Package Type and Termination Count | Load Supply Voltage (Min) (V) | Load Supply Voltage (Max) (V) | Supply Voltage (Min-Max) (V) | Interface and Input Control | Switch Monitoring Voltage (Min-Max) (V) (VSENSE) | Ambient Operating Temperature (Min-Max) (°C) | Protection | Diagnostics | Additional Features-Analog | ADC Dynamic Range (dB) | ADC SNR (dB) | DAC Dynamic Range (dB) | DAC SNR (dB) | Frequency Band (Min-Max) (MHz) | RoHS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MC34975ATEKR2 | Active | Signal Conditioning, Switch Monitoring | SOIC-EP 32 | 5.5 | 26 | 3.1 to 5.25 | SPI | -14 to 40 | -40 to 85 | N/A | SPI | Pulse wetting current | [object Object] | |||||||
| MC34975ATEK | Active | Signal Conditioning, Switch Monitoring | SOIC-EP 32 | 5.5 | 26 | 3.1 to 5.25 | SPI | -14 to 40 | -40 to 85 | N/A | SPI | Pulse wetting current | [object Object] |
Package Information
| Package Description | Outline Version | Packing | Product Status | Part Number | Chemical Content | RoHS / Pb FreeChina RoHS Lookup | MSL | PPT (°C) |
|---|---|---|---|---|---|---|---|---|
| SOIC-EP 32 7.5*11*2.3 | 98ASA00259D | MPQ - 42 RAILPOQ - 3360 BOX | Active | MC34975ATEK | MC34975ATEK.pdf |   | 3 | 260 |
| MPQ - 1000 REELPOQ - 1000 BOX | Active | MC34975ATEKR2 | MC34975ATEKR2.pdf | | 3 | 260 |
- SG200, Industrial Selector Guide 3Q 2015 - Selector Guide mc36xsd
- 98ASA00259D MC33903
- MC34975ATEK.pdf MC34975
- MC34975ATEKR2.pdf MC34975
