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MPXY8300 Datasheet(PDF) 2 Page - Freescale Semiconductor, Inc

Part # MPXY8300
Description  Tire Pressure Monitor Sensor Product Specification
PDF  164 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPXY8300 Datasheet(HTML) 2 Page - Freescale Semiconductor, Inc

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MPXY8300 Series
Sensors
2
Freescale Semiconductor
SECTION 1 GENERAL DESCRIPTION
1.1
Overall Block Diagram
The block diagram of the device is shown in Figure 1-1. This diagram covers all the main blocks mentioned above and their main
signal interactions. Power management controls and bus control signals are not shown in this block diagram for clarity.
1.2
Multi-Chip Interface
The device contains four devices using the best process technology for each.
•
Microcontroller (MCU)
•
RF transmitter device (RFX)
•
Pressure sensing device (P-CHIP)
•
Z- and X-axis acceleration transducer (g-Cell)
As shown in Figure 1-1 the MCU interfaces to the RFX using a standard serial peripheral interface (SPI) which creates a separate
data and address bus structure within the RFX. The P-Chip and g-Cell both interface to the MCU.
1.3
System Clock Distribution
The various clock sources and their distribution are shown in Figure 1-2. Note that most clock sources and distribution are limited
to one device, while the SFO, DX and SPI clocks are connected between devices. All clock sources except the low frequency
oscillator, LFO, can be turned off by software control in order to conserve power. The LFO is used for:
•
Slow periodic wake-up of the MCU (see Section 11)
•
Slow periodic wake-up of LF receiver (LFR) (see Section 12)
ORDERING INFORMATION
MPXY8300 Series
Order Numbers
Temperature Range
Case No.
Package
MPXY8300A6T1
-40
°C to 125°C
1793-03
SOIC-20, Tape and Reel
MPXY8300A6U
-40
°C to 125°C
1793-03
SOIC-20, Rail
MPXY8300B6T1
-40
°C to 125°C
1793-03
SOIC-20, Tape and Reel
MPXY8300B6U
-40
°C to 125°C
1793-03
SOIC-20, Rail
MPXY8300C6T1
-40
°C to 125°C
1793-03
SOIC-20, Tape and Reel
MPXY8300C6U
-40
°C to 125°C
1793-03
SOIC-20, Rail



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