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PDF ( 数据手册 , 数据表 ) 912_S812

零件编号 912_S812
描述 S12XS MCU and Multifunctional Ignition and Injector Driver System
制造商 Freescale Semiconductor
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912_S812 数据手册, 描述, 功能
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.







912_S812 pdf, 数据表
Table 4. 912_S812 Pin Definitions
Analog
or MCU
Pin
Pin Name
Pin
Function
Formal Name
Description and Recommendations
Analog 30
ISO9141
Input/
Output
ISO9141 K-Line
Bidirectional Serial Data
Signal
The ISO9141 pin is a VPWR level IN/OUT signal connected to a external ECU
Tester, using ISO9141 Protocol.The Output is Open drain and the Input is a
ratiometric VPWR level threshold comparator. Use an ESD capacitor where
the signal goes off the PC Board.
Analog 31 VCCSENS
Input
Voltage Sense from VCC
Feedback to the internal VCC regulator from a external pass transistor. Must
have the minimum of a 2.2 F capacitor
Analog 32
VCCREF
Output
VCC Reference Base
drive
Base drive voltage for an external PNP pass transistor
Analog 33
VPWR
Supply
Input
Main Voltage Supply
Input
VPWR is the main voltage supply input for the device. It is connected to a +12
volt battery (It should have reverse battery protection and transient
suppression.) It also needs a bypass capacitor to ground (100 nF or 0.1 F)
MCU
34 PM4/MOSI
I/O
PM4/
SPI MOSI
Port M, I/O pin 4 is a general purpose input or output pin. It can be configured
as the master output (during master mode) or slave input pin (during slave
mode). MOSI for the serial peripheral interface (SPI).
MCU 35 PM3/SSB
I/O
PM3/
SPI SSB
Port M, I/O pin 3 is a general purpose input or output pin. It can be configured
as the slave select output pin SSB of the serial peripheral interface (SPI)
(during master mode) and chip select input (CSB) (during slave mode).
MCU
36 PM2/MISO
I/O
PM2/
SPI MISO
Port M, I/O pin 2 is a general purpose input or output pin. It can be configured
as the master input (during master mode) or slave output pin (during slave
mode). MISO for the serial peripheral interface (SPI).
MCU
37 PM1/TXCAN
I/O
PM1/
TXCAN
Port M, I/O pin 1 is a general purpose input or output pin. It can be configured
as the transmit pin TXCAN of the scalable controller area network controller
(CAN).
MCU
38 PM0/RXCAN
I/O
PM0/
RXCAN
Port M, I/O pin 0 is a general purpose input or output pin. It can be configured
as the receive pin RXCAN of the scalable controller area network controller
(CAN).
MCU
39
VSSX1
Ground
VSSX1
External ground for I/O drivers. Bypass requirements depend on how heavily
the MCU pins are loaded. All VSSX pins are connected together internally.
Connect to Ground
MCU
40
VDDX1
Supply
Input
VDDX1
External power for I/O drivers. Bypass requirements depend on how heavily
the MCU pins are loaded. All VDDX pins are connected together internally.
Connect to VCC and use a 100 nF bypass capacitor to ground.
MCU
41
PP3
Port P, I/O pin 3 is a general purpose input or output pin. It can be configured
I/O
PP3/KWP3/PWM3
as a keypad wake-up input. It can be configured as a pulse width modulator
(PWM) output channel 3.
MCU
42
PP2
PT0(8)
I/O
PP2/KWP2/PWM2
PT0(8)
Port P, I/O pin 3 is a general purpose input or output pin. It can be configured
as a keypad wake-up input. It can be configured as a pulse width modulator
(PWM) output channel 2.(8)
MCU
43
PP1
PT1(8)
I/O
PP1/KWP1/PWM1
PT1(8)
Port P, I/O pin 3 is a general purpose input or output pin. It can be configured
as a keypad wake-up input. It can be configured as a pulse width modulator
(PWM) output channel 1.(8)
MCU
44
PP0
PT2(8)
I/O
PP0/KWP0/PWM0
PT2(8)
Port P, I/O pin 3 is a general purpose input or output pin. It can be configured
as a keypad wake-up input. It can be configured as a pulse width modulator
(PWM) output channel 0.(8)
MCU
45
PT3
I/O
PT3/IOC3
Port T, I/O pin 3 is a general purpose input or output pin. It can be configured
as a timer (TIM) channel 3.
MCU
46
VDDF
Supply
VDDF 3.3 V supply
output
Signals VDDF/VSS are the secondary outputs of VREG_3V3 that provide the
power supply for the NVM logic. These signals are connected to device pins
to allow external decoupling capacitors (220 nF, X7R ceramic). In Shutdown
mode an external supply driving VDDF/VSS can replace the voltage regulator.
MCU
47
VSS1
Ground
VSS1
See previous description for VDDF/VSS.
Notes
8. S12XEP signals noted for reuse of PC board for the calibration device.
912_S812
8
Analog Integrated Circuit Device Data
Freescale Semiconductor







912_S812 equivalent, schematic
7 Revision History
REVISION
1.0
DATE
2/2013
2.0 2/2015
DESCRIPTION OF CHANGES
• Initial release
• Changed ordering part numbers from PM to MM
• Updated document status to Advance Information
• Update document form and style
912_S812
16
Analog Integrated Circuit Device Data
Freescale Semiconductor










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