Datasheet > MC33CD1030AE

MC33CD1030AE

更新时间： 2025-08-21 15:19:23

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
67页	1805K
描述
Switch Detect interface, 33 channel, Mono, 48 LQFP

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MC33CD1030AE 数据手册

Document Number: CD1030

Rev. 5.0, 7/2018

NXP Semiconductors

Technical Data

33 channel multiple switch detection

interface with programmable wetting

current

CD1030

MULTIPLE SWITCH DETECTION INTERFACE

The CD1030 is designed to detect the closing and opening of up to 33 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 35-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.

AE SUFFIX (PB-FREE)

98ASA00173D

The CD1030 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

CD1030 ideal for automotive and industrial products requiring low sleep-state

currents.

48-PIN LQFP-EP

Applications

• Automotive

• Heating ventilation and air conditioning (HVAC)

• Lighting

Features

• Central gateway / in-vehicle networking

• Gasoline engine management

• Industrial

• Fully functional operation 4.5 V ≤ V_BATP≤ 36 V

• Full parametric operation 6.0 V ≤ V_BATP≤ 28 V

• Operating switch input voltage range from -1.0 V to 36 V

• 12 programmable inputs (switches to battery or ground)

• 21 switch-to-ground inputs

• Selectable wetting current (2.0, 6.0, 8.0, 10, 12, 14, 16, or 20 mA)

• Interfaces directly to an MCU using 3.3 V / 5.0 V SPI protocol

• Selectable wake-up on change of state

• Programmable logic control (PLC)

• Process control, temperature control

• Input-output control (I/O Control)

• Single board computer

• Ethernet switch

• Typical standby current I_BATP= 50 μA and I_DDQ= 10 μA

• Active interrupt (INT_B) on switch state change

• Integrated battery and temperature sensing

V_DDQ

Battery

Power

Supply

CD1030

SG1

Battery

VBATP

SP0

Power

Supply

WAKE_B

MCU

SP1

VDDQ

INT_B

SP11

INTB

CS_B

CSB

MISO

MOSI

SCLK

SG0

AN0

AMUX

SG1

SG20

GND

Figure 1. CD1030 simplified application diagram

12 3 4 5 6 7...67

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