PDF 912_P812 Data sheet ( Hoja de datos )

Número de pieza	912_P812
Descripción	S12P MCU and Multifunctional Ignition and Injector Driver System
Fabricantes	Freescale Semiconductor
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No Preview Available ! Freescale Semiconductor Advance Information Document Number: MM912_P812 Rev. 1.0, 05/2012 S12P MCU and Multifunctional Ignition and Injector Driver 912_P812 System In Package (SiP) The MM912xP812 is an engine control IC combining an MCU (S12P) and analog control die (MC33812) intended for motorcycle and other single/dual cylinders small engine control applications. The MCU S12P has 6 KB RAM, and flash memory size of 96 KB or 128 KB. The S12P family uses many of the same features found on the S12XS family, including error correction code (ECC) on flash memory, a separate data-flash module for diagnostic or data storage, a fast analog-to-digital converter (ATD), and a frequency modulated phase locked loop (IPLL) that improves the electromagnetic compatibility (EMC) performance. The analog control IC consists of three integrated low side drivers, one pre-driver, a +5.0 V, voltage pre-regulator, an MCU watchdog circuit, an ISO 9141 K-Line interface, and a parallel interface for MCU communication. The three low side drivers are provided for driving a fuel injector, a lamp or LED, and a relay or another injector or fuel pump. The pre-driver is intended to drive either an insulated gate bipolar transistor (IGBT) or a bipolar Darlington transistor to control an ignition coil. SMALL ENGINE CONTROL SIP 98ASA00371D 100 Pin LQFP-EP Features: • Designed to operate over the range of ~4.7 V ≤ VPWR ≤ 36 V • Relay/injector/fuel pump driver—current limit—4.0 A typical • Lamp driver—current limit—1.5 A typical • All external outputs protected against short to battery and over-current • VCC voltage pre-regulator provides +5.0 V power for the MCU • MCU watchdog timer circuit with parallel refresh/time setting line • ISO-9141 K-Line transceiver for communicating diagnostic messages • All signal lines are accessible • Also available with MC9S12XEP100 MCU for calibration • For detailed specifications see data sheets for the MC33812 and MC9S12Pxxx • Provides single package ECU for minimum PC board area 5.0 V VBAT 912_P812 VDD VCCSENS VCCREF VPWR LAMPIN I/O RIN I/O RESET RESET WDRFSH I/O INJIN I/O INJFLT I/O IGNIN I/O IGNFLT I/O RELFLT I/O MRX RXD MTX TXD EXTAL XTAL LAMPOUT ROUT INJOUT IGNFB IGNSUP IGNOUTH IGNOUTL ISO9141 PAD0 PAD1 PAD2 PAD3 PAD4 PAD5 PAD6 PAD7 PAD9 MOSI SCK SS MISO IRQ PM1/TXCAN PM0/RXCAN TEST1 TM_EN, TEST2 WD_INH PGND VSS DGND VBAT VBAT Relay or other load Injector VBAT VBAT VPWR ISO9141 Notes 1. Surge Voltage protection recommended on VPWR 2. Not all connections on MCU shown Figure 1. MM912_P812 Simplified Application Diagram *This document contains certain information on a product under development. Freescale reserves the right to change or discontinue this product without notice © Freescale Semiconductor, Inc., 2012. All rights reserved. 1 page INTERNAL BLOCK DIAGRAM VPWR TM_EN TEST1 TEST2 TEST3 VCC LOGIC CONTROL INJIN VCC INJFLT IGNIN IGNFLT RIN RELFLT LAMPIN VCC VCC PARALLEL CONTROL RESET (Open Drain) WDRFSH MTX MRX DGND WATCHDOG VCC ISO9141 CONTROLLER VPWR, VCC V10.0 Analog V2.5 Logic POR, over-voltage, under-voltage Band Gap Oscillator Bias Gate Control Current Limit Temperature Limit Short Protection Open det. on Injector Ignition Predriver Short Protection Relay and Injector Output VClamp + – lLimit RS VCCREF VCCSENS IGNSUP IGNFB IGNOUTH IGNOUTL INJOUT PGND1 ~75µA ROUT PGND2 Lamp Output Gate Control Current Limit Temperature Limit Short Protection VClamp LAMPOUT + – lLimit RS GND VCC ISO9141 WD_INH Notes 4. Pull-up and pull-down current sources are ~50 µA, unless otherwise noted Figure 4. 33812 Simplified Internal Block Diagram Analog Integrated Circuit Device Data Freescale Semiconductor MM912_P812 5 5 Page PIN CONNECTIONS Table 4. MM912_P812 Pin Definitions Analog or MCU Pin MCU 76 Pin Name Pin Function PAD09 A/D Input Formal Name Description and Recommendations PAD09 ON S12P PAD09 is the general purpose input or output pin and analog input of the analog-to-digital converter, A/D Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. (Only on S12P, not on S12XEP100) MCU VSS2 (10) Ground (10) 77 PAD00 A/D Input MCU 78 PAD01 A/D Input MCU 79 PAD02 A/D Input MCU 80 PAD03 A/D Input MCU 81 PAD04 A/D Input MCU 82 PAD05 A/D Input MCU 83 PAD06 A/D Input MCU 84 PAD07 A/D Input MCU 85 VDDA Supply Input MCU 86 VRH Supply Input MCU 87 MCU 88 VRL VSSA Supply Input Ground MCU 89 PS0/RXD I/O Ground of 3.3 V regulator (10) PAD00 PAD01 PAD02 PAD03 PAD04 PAD05 PAD06 PAD07 VDDA VRH VRL VSSA PS0/ RXD (SCI) See description of VDD above. Only on S12XEP100 (9) PAD00 is the general purpose input or output pin and analog input AN0 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. PAD01 is the general purpose input or output pin and analog input AN1 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. PAD02 is the general purpose input or output pin and analog input AN2 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. PAD03 is the general purpose input or output pin and analog input AN3 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. PAD04 is the general purpose input or output pin and analog input AN4 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. PAD05 is the general purpose input or output pin and analog input AN5 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. PAD06 is the general purpose input or output pin and analog input AN6 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. PAD07 is the general purpose input or output pin and analog input AN7 of the analog-to-digital converter, A/D. Use voltage divider if necessary, and ESD protection capacitor. Use of low pass filter as necessary. This is the power supply input pin for the analog-to-digital converter and the voltage regulator. Connect to VCC and use a bypass capacitor, 100 nF to Ground. VRH and VRL are the reference voltage input pins for the analog-to- digital converter. Connect to VCC and use a bypass capacitor, 100 nF to Ground. VRH and VRL are the reference voltage input pins for the analog-to- digital converter. Connect to Ground. This is the ground input pin for the analog-to-digital converter and the voltage regulator. Connect to Ground. Port S, I/O pin 0 is a general purpose input or output pin. It can be configured as the receive pin RXD of serial communication interface (SCI). If used for ISO9141 connect to pin 4, MRX. Notes 10. S12XEP100 signal noted for reuse of PC board for the calibration device. Analog Integrated Circuit Device Data Freescale Semiconductor MM912_P812 11 11 Page

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