MC33972EW中文资料摩托罗拉数据手册PDF规格书
MC33972EW规格书详情
Μultiple Switch Detection interface with Suppressed Wake-Up
The 33972 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 analog input signal is buffered and provided on the AMUX output terminal for the MCU to read.
The 33972 device has two modes of operation, Normal and Sleep. Normal mode allows programming of the device and supplies switch contacts with pullup or pulldown current as it monitors switch change of state. The Sleep mode provides low quiescent current, which makes the 33972 ideal for automotive and industrial products requiring low sleep state currents.
特性 Features
• Designed to Operate 5.5 V ≤ VPWR ≤ 26 V
• Switch Input Voltage Range -14 V to VPWR, 40 V Max
• Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol
• Selectable Wake-Up on Change of State
• Selectable Wetting Current (16 mA or 2.0 mA)
• 8 Programmable Inputs (Switches to Battery or Ground)
• 14 Switch-to-Ground Inputs
• VPWR Standby Current 100 µA Typical, VDD Standby Current 20 µA Typical
• Active Interrupt (INT) on Change-of-Switch State
• Pb-Free Packaging Designated by Suffix Code EW
产品属性
- 型号:
MC33972EW
- 功能描述:
多路器开关 IC MSDISW
- 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 |
24+ |
NA/ |
49 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
FREESCALE |
2016+ |
SSOP32 |
8992 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
FREESCALE |
25+ |
SSOP32 |
54658 |
百分百原装现货 实单必成 |
询价 | ||
FREESCALE |
22+ |
SSOP32 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
FREESCALE |
24+ |
SSOP32 |
20000 |
全新原厂原装,进口正品现货,正规渠道可含税!! |
询价 | ||
Freescale |
23+ |
32-SOIC |
65600 |
询价 | |||
FREESCALE/飞思卡尔 |
21+ |
SSOP32 |
3500 |
百域芯优势 实单必成 可开13点增值税发票 |
询价 | ||
FREESCAL |
SSOP32 |
3500 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
Freescale |
25+23+ |
19942 |
绝对原装正品全新进口深圳现货 |
询价 | |||
FREESCALE |
23+ |
SSOP32 |
13000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 |


