33975中文资料PDF规格书
33975规格书详情
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
产品属性
- 型号:
33975
- 制造商:
FREESCALE
- 制造商全称:
Freescale Semiconductor, Inc
- 功能描述:
Multiple Switch Detection Interface with Suppressed Wake-Up and 32mA Wetting Current
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MOTOROLA |
1822+ |
SOP8 |
9852 |
只做原装正品假一赔十为客户做到零风险!! |
询价 | ||
Van Damme |
2021+ |
标准接口 |
285000 |
专供连接器,军工合格供应商! |
询价 | ||
MOT |
10+ |
SOP-8 |
6000 |
绝对原装自己现货 |
询价 | ||
MOT |
SOP8 |
6500 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
SHARP |
01+ |
SOP-28 |
203 |
询价 | |||
22+ |
DIP40 |
3629 |
原装优势!房间现货!欢迎来电! |
询价 | |||
新 |
5 |
全新原装 货期两周 |
询价 | ||||
SHARP |
2023+ |
SOP-28 |
50000 |
原装现货 |
询价 | ||
ON |
23+ |
SOP8 |
10000 |
全新原装 |
询价 | ||
Adafruit |
22 |
sop |
10000 |
现货常备产品原装可到京北通宇商城查价格 |
询价 |