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MC33975EKR2中文资料
MC33975EKR2数据手册规格书PDF详情
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 32mA and 4.0mA for switch-to-ground inputs, and an interrupt bit that can be reset.
Features
• Designed to operate from 5.5V ≤ VPWR ≤ 28V
• Switch input voltage: (33975: -14 to 38V) (33975A: -14 to 40V)
• Interfaces to microprocessor using 3.3V/5.0V 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 (32mA or 4.0mA for switch-to-ground
inputs)
• Sleep State current VPWR 100μA, Vdd 20μA
• Pb-free packaging designated by suffix code EK
MC33975EKR2产品属性
- 类型
描述
- 型号
MC33975EKR2
- 功能描述
多路器开关 IC EMSDI
- RoHS
否
- 制造商
Texas Instruments
- 通道数量
1
- 开关数量
4
- 开启电阻(最大值)
7 Ohms
- 传播延迟时间
0.25 ns
- 工作电源电压
2.3 V to 3.6 V
- 最大工作温度
+ 85 C
- 安装风格
SMD/SMT
- 封装/箱体
UQFN-16
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
FREESCALE |
22+ |
SOIC32300ML4 |
2000 |
原装现货库存.价格优势 |
|||
FREESCALE |
24+ |
SSOP32 |
5000 |
只做原装公司现货 |
|||
FREESCALE |
20+ |
HSSOP32 |
67500 |
原装优势主营型号-可开原型号增税票 |
|||
FREESCALE |
23+ |
HSSOP32 |
50000 |
全新原装正品现货,支持订货 |
|||
FREESCALE |
23+ |
HSSOP32 |
50000 |
全新原装正品现货,支持订货 |
|||
FREESCALE |
23+ |
HSSOP32 |
13000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
|||
FREESCALE |
23+ |
HSSOP-32 |
89630 |
当天发货全新原装现货 |
|||
FREESCALE |
24+ |
SOIC32 |
60000 |
||||
FREESCALE |
25+ |
18000 |
原厂直接发货进口原装 |
||||
FREESCALE |
25+ |
N/A |
4500 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
MC33975EKR2 资料下载更多...
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FREESCALE相关芯片制造商
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