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參數資料
型號: MC33972
廠商: Motorola, Inc.
英文描述: Multiple Switch Detection Interface with Suppressed Wake-Up
中文描述: 多交換檢測接口,具有抑制喚醒
文件頁數: 11/28頁
文件大小: 506K
代理商: MC33972
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33972
11
MCU INTERFACE DESCRIPTION
The 33972 device directly interfaces to a 3.3 V or 5.0 V
microcontroller unit (MCU). SPI serial clock frequencies up to
6.0 MHz may be used for programming and reading switch
input status (production tested at 4.16 MHz).
Figure 5
illustrates
the configuration between an MCU and one 33972.
Serial peripheral interface (SPI) data is sent to the 33972
device through the SI input terminal. As data is being clocked
into the SI terminal, status information is being clocked out of
the device by the SO output terminal. The response to a SPI
command will always return the switch status, interrupt flag, and
thermal flag. Input switch states are latched into the SO register
on the falling edge of the chip select (
CS
) terminal. Twenty-four
bits are required to complete a transfer of information between
the 33972 and the MCU.
Figure 5. SPI Interface with Microprocessor
Two or more 33972 devices may be used in a module
system. Multiple ICs may be SPI-configured in parallel or serial.
Figures 6
and
7
show the configurations. When using the serial
configuration, 48-clock cycles are required to transfer data in/
out of the ICs.
Figure 6. SPI Parallel Interface with Microprocessor
Figure 7. SPI Serial Interface with Microprocessor
33972
MC68HCXX
Microcontroller
Receive
Buffer
Parallel
Ports
To Logic
24-Bit Shift Register
Shift Register
MOSI
SI
MISO
SO
SCLK
CS
INT
INT
Parallel
Ports
MC68HCXX
Microcontroller
33972
33972
SI
SCLK
CS
INT
SI
SO
SCLK
CS
INT
INT
SCLK
MISO
MOSI
Shift Register
SO
Parallel
Ports
MC68HCXX
Microcontroller
33972
33972
SI
SCLK
CS
INT
SI
SO
SCLK
CS
INT
SO
INT
SCLK
MISO
MOSI
Shift Register
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關PDF資料
PDF描述
MC33972DWB Multiple Switch Detection Interface with Suppressed Wake-Up
MC33972EW Multiple Switch Detection Interface with Suppressed Wake-Up
MC33999 16-Output Switch with SPI and PWM Control
MC34152P Single Output LDO, 250mA, Fixed(3.3V), Low Noise, Fast Transient Response 8-SOIC -40 to 85
MC33152 High Speed Dual MOSFET Drivers(高速雙MOSFET驅動器)
相關代理商/技術參數
參數描述
MC33972ATEK 功能描述:接口 - 專用 MULT SW DET SUP-WKUP RoHS:否 制造商:Texas Instruments 產品類型: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 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
MC33972ATEKR2 功能描述:接口 - 專用 MULT SW DET SUP-WKUP RoHS:否 制造商:Texas Instruments 產品類型: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 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
MC33972ATEW 功能描述:接口 - 專用 MULT SW DET SUP-WKUP RoHS:否 制造商:Texas Instruments 產品類型: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 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
MC33972ATEWR2 功能描述:接口 - 專用 MULT SW DET SUP-WKUP RoHS:否 制造商:Texas Instruments 產品類型: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 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
MC33972DWB 功能描述:IC SWITCH DETECT SPI 32-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用:PDA,便攜式音頻/視頻,智能電話 接口:I²C,2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應商設備封裝:24-QFN 裸露焊盤(4x4) 包裝:帶卷 (TR) 安裝類型:表面貼裝 產品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
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