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PDF 912_S812 Data sheet ( Hoja de datos )

Número de pieza 912_S812
Descripción S12XS MCU and Multifunctional Ignition and Injector Driver System
Fabricantes Freescale Semiconductor 
Logotipo Freescale Semiconductor Logotipo



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No Preview Available ! 912_S812 Hoja de datos, Descripción, Manual

Freescale Semiconductor
Advance Information
S12XS MCU and Multifunctional
Ignition and Injector Driver System In
Package (SiP)
The MM912_S812 is an engine control SMARTMOS IC combining an MCU
(S12XS) and analog control die (MC33812) intended for motorcycle and other
single cylinder small engine control applications.The MCU S12XS has 8.0 KB or
12 KB RAM, and flash memory size of 128 KB or 256 KB. The S12XS family
retains many of the features of the S12XE family including error correction code
(ECC) on flash memory, a separate data-flash module for code or data storage,
a frequency modulated locked loop (IPLL) that improves the EMC performance
and a fast ATD converter.
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 overcurrent
• 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
Document Number: MM912_S812
Rev. 2.0, 2/2015
912_S812
SMALL ENGINE CONTROL SIP
AF Suffix (Pb Free)
98ASA00371D
100 Pin LQFP-EP
5.0 V
VBAT
912_S812
VDD
VCCSENS
VCCREF
VPWR
LAMPIN
PB3
RIN
PP1
RESETB
RESETB
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
PAD00
PAD01
PAD02
PAD03
PAD04
PAD05
PAD06
PAD07
PAD09
MOSI
SCK
SSB
MISO
IRQB
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. 912_S812 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2013-2015. All rights reserved.

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912_S812 pdf
VPWR
TM_EN
TEST1
TEST2
TEST3
VCC
LOGIC CONTROL
INJIN VCC
INJFLT
IGNIN
IGNFLT
RIN
RELFLT
LAMPIN
VCC
VCC
PARALLEL
CONTROL
RESETB
(Open Drain)
WDRFSH
MTX
MRX
DGND
WATCHDOG
VCC
ISO9141
CONTROLLER
VPWR, VCC
V10.0 Analog
V2.5 Logic
POR, overvoltage,
undervoltage
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
912_S812
5

5 Page





912_S812 arduino
Table 4. 912_S812 Pin Definitions
Analog
or MCU
Pin
Pin Name
Pin
Function
Formal Name
Description and Recommendations
MCU
88
VSSA
Ground
VSSA
This is the ground input pin for the analog-to-digital converter and the voltage
regulator. Connect to Ground.
MCU 89 PS0/RXD
I/O
PS0/
SCI RXD
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.
MCU 90 PS1/TXD
I/O
PS1/
SCI TXD
Port S, I/O pin 1 is a general purpose input or output pin. It can be configured
as the receive pin TXD of serial communication interface (SCI).
If used for ISO9141 connect to pin 3, MTX.
MCU
91
TEST
Input
Test
MUST leave OPEN. leave open
MCU 92 PM5/SCK
I/O
PM5/
SPI SCK
Port M, I/O pin 5 is a general purpose input or output pin. It can be configured
as the serial clock input pin for the serial peripheral interface (SPI) when the
SPI is in slave mode and as a serial clock output when the SPI is in master
mode.
Analog 93
RESETB
Output
Logic Level ResetB signal used to reset the MCU when the watchdog circuit
RESETB Output to MCU times out, during undervoltage condition on VCC, and for initial power up and
power down. Provides RESETB to MCU on pin 64.
Analog 94
INJFLT
Output
Injector Fault
Logic Level output to MCU indicating any fault in the injector circuit.
Analog 95
RELFLT
Output
Relay Fault
Logic Level output to MCU indicating any fault in the relay circuit.
Analog 96
IGNFLT
Output
Ignition Fault
Logic Level output to MCU indicating any fault in the ignition circuit.
Analog 97
INJIN
Input
Injector Parallel Input Logic Level Parallel Input from the MCU to control the injector driver output
Analog 98
RIN
Input
Relay Parallel Input Logic Level Parallel input to activate RELAY output, ROUT
Analog 99
LAMPIN
Input
LAMP Parallel Input
Logic Level Parallel input to activate the malfunction indicator lamp output,
LAMP
Analog 100
IGNIN
Input
Ignition Parallel Input
Logic Level Parallel Input from MCU controlling the ignition coil current flow
and spark.
-
EP
GND
Ground
Substrate Ground
Should be tied to the Ground plane. Connect to Ground.
Analog Integrated Circuit Device Data
Freescale Semiconductor
912_S812
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