美敦力呼吸机PB560硬件分析

1 硬件主要芯片
CPU板的MCU和电源板的MCU通过SPI-0通信。
1.1 CPU板
1)ST10F276,16bit MCU
2)K6R4016C1D-UI10,Samsung 256K x 16 SRAM,Event Memory
3)K9F1G08UOA-PCB0,Samsung 128M x 8 NAND Flash,Monitoring Memory
4)25LC320,Microchip 4K x 8 EEPROM,Settings Memory
5)ASDX001D44R,4个1-wire Honeywell压力传感器,传感器的1-wire连到ST10F276的ADC输入pin;或者Sensortechnics SQ276,SQ276通过SPI-0连接到ST10F276
6)BSDX0811BARO-X,1个1-wire SensorTechnics气压计
7)ARF34,Adeunis RF34,射频433 MHz(NFC的频率是13.56 MHz),UART接口,Alarm报警器

1.2 电源板
1)PIC18F6622,8bit MCU,64K Flash
2)FT2232,USB转2个串口,分别到电源板MCU的RX-UART-PIC和TX-UART-PIC,以及到CPU板MCU的RX-UART-ST和TX-UART-ST
3)CY7C67300,SPI to 2-port FS USB Host,外接U盘;通过SPI-1连接到CPU板的ST10F276

1.3 Powerpack板
1)PIC18F43K22T

2 URLs
https://www.medtronic.com/us-en/e/open-files/thank-you.html

3 Abbreviations
ASDX001D44R:Amplified version of SDX series sensor
PB560:Puritan Bennett
psi:Pounds per square inch,1bar = 100kPa,1bar ≈ 14.5psi

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