MC33972TEW Product Information|NXP

Features


Switch Detection Interface, 22-switches with Suppressed Wakeup, 3.3 V / 5.0 V SPI , SOIC 32

Package


SSOP32: SSOP32, plastic, shrink small outline package; 32 terminals; 0.65 mm pitch; 7.5 mm x 11 mm x 2.5 mm body

Buy Options

MC33972TEWR2

Active

12NC: 935318405518

Details

Order

Order from distributors

Operating Features

ParameterValue
Device Function
signal conditioning, switch monitoring
Load Supply Voltage (Min) (V)
5.5
Load Supply Voltage (Max) (V)
26
Supply Voltage [min] (V)
3.1
ParameterValue
Supply Voltage [max] (V)
5.25
Interface and Input Control
SPI
Ambient Operating Temperature (Min to Max) (℃)
-40 to 125

Environmental

Part/12NCPbFreeEU RoHSHalogen FreeRHF Indicator2nd Level InterconnectREACH SVHCWeight (mg)
MC33972TEW(935318405574)
Yes
Yes
Certificate Of Analysis (CoA)
Yes
D
e3
REACH SVHC
510.0
MC33972TEWR2(935318405518)
Yes
Yes
Certificate Of Analysis (CoA)
Yes
D
e3
REACH SVHC
510.0

Quality

Part/12NCSafe Assure Functional SafetyMoisture Sensitivity Level (MSL)Peak Package Body Temperature (PPT) (C°)Maximum Time at Peak Temperatures (s)
Lead Free SolderingLead Free SolderingLead Free Soldering
MC33972TEW
(935318405574)
No
3
260
40
MC33972TEWR2
(935318405518)
No
3
260
40

Shipping

Part/12NCHarmonized Tariff (US)DisclaimerExport Control Classification Number (US)
MC33972TEW
(935318405574)
854239
EAR99
MC33972TEWR2
(935318405518)
854239
EAR99

Product Change Notice

Part/12NCIssue DateEffective DatePCNTitle
MC33972TEW
(935318405574)
2025-04-162025-05-26202504006IFreescale Logo to NXP Logo Product Marking Conversion for All Remaining Former Freescale Products
MC33972TEWR2
(935318405518)
MC33972TEW
(935318405574)
2020-12-152020-12-16202011011INXP Will Add a Sealed Date to the Product Label
MC33972TEWR2
(935318405518)
MC33972TEW
(935318405574)
2017-12-202018-01-03201710023INew PQ Label Input for Non-MPQ Shipments

More about MC33972

The NXP MC33972 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 MCU through a SPI
  • Features a 22-to-1 analog multiplexer for reading inputs as analog. The analog input signal is buffered and provided on the AMUX output pin for the MCU to read
  • Two modes of operation:
    • Normal: allows programming of the device and supplies switch contacts with pull-up or pull-down current monitoring switch change of state
    • Sleep: provides low quiescent current, making MC33972 ideal for automotive and industrial products requiring low sleep state currents
More