參數(shù)資料
型號(hào)： MC33975ATEK
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 1/32頁(yè)
文件大?。?/td> 0K
描述： IC SWITCH DETECT MULT 32-SOIC
標(biāo)準(zhǔn)包裝： 42
應(yīng)用： 開(kāi)關(guān)監(jiān)控
接口： SPI 串行
封裝/外殼： 32-BSOP（0.295"，7.50mm 寬）裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 32-SOICW 裸露焊盤(pán)
包裝： 管件
安裝類(lèi)型： 表面貼裝
Document Number: MC33975
Rev 11.0, 01/2014
Freescale Semiconductor
Technical Data
Freescale Semiconductor, Inc., 2005 - 2014. All rights reserved.
Multiple Switch Detection
Interface with Suppressed
Wake-up and 32 mA Wetting
Current
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 device 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 the 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 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. This
device is powered using SMARTMOS technology.
Features
Designed to operate from 5.5 V
VPWR 28 V
Switch input voltage: (33975: -14 to 38 V) (33975A: -14 to 40 V)
Interfaces to microprocessor using 3.3 V/5.0 V SPI protocol
Selectable wake-up on change of state
14 switch-to-ground inputs
8 programmable inputs (switches to battery or ground)
Selectable wetting current (32 mA or 4.0 mA for switch-to-ground
inputs)
Sleep State current VPWR 100 A, VDD 20 A
Figure 1. 33975 Simplified Application Diagram
EK SUFFIX (PB-FREE)
98ASA10556D
32-PIN SOICW EP
33975
33975A
MULTIPLE SWITCH
DETECTION INTERFACE WITH
SUPPRESSED WAKE-UP
Applications
Automotive systems
Industrial control systems
Process control systems
Security systems
Systems requiring switch status verification for
safety, operation, or process control purposes
V
BAT
SP0
SP1
SP7
SG0
SG1
SG12
SG13
VPWR
VDD
WAKE
SI
CS
SO
INT
AMUX
GND
MOSI
SCLK
CS
MISO
INT
AN0
33975
MCU
SCLK
POWER SUPPLY
LVI
ENABLE
WATCHDOG
RESET
VDD
V
BAT
VDD
V
BAT
相關(guān)PDF資料
PDF描述
MS27467T21B35P CONN PLUG 79POS STRAIGHT W/PINS
5225559-2 CONN PLUG TNC RG-58 R/A CRIMP
MS27467T17F8S CONN PLUG 8POS STRAIGHT W/SCKT
VI-J5N-IW-F4 CONVERTER MOD DC/DC 18.5V 100W
VI-J5N-IW-F2 CONVERTER MOD DC/DC 18.5V 100W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC33975ATEKR2 功能描述:接口 - 專(zhuān)用 ENHANCED MULTI SW DETECT RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
MC33975EK 功能描述:多路器開(kāi)關(guān) IC EMSDI RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MC33975EKR2 功能描述:多路器開(kāi)關(guān) IC EMSDI RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MC33975TEK 功能描述:接口 - 專(zhuān)用 MULTI SW DETECT INTERFACE RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
MC33975TEKR2 功能描述:接口 - 專(zhuān)用 MULTI SW DETECT INTERFACE RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*