Atmel ATA6617汽车电子LIN网络方案
Microcontroller with LIN Transceiver, 5V Regulator and Watchdog
ATA6617 is a System-in-Package (SiP) product, which is particularly suited for complete
LIN-bus node applications. It supports highly integrated solutions for in-vehicle
LIN networks. The first chip is the LIN-system-basis-chip (LIN-SBC) ATA6624, which
has an integrated LIN transceiver, a 5V regulator and a window watchdog. The second
chip is an automotive microcontroller from Atmel®’s series of AVR 8-bit
microcontroller with advanced RISC architecture, the ATtiny167 with 16-Kbytes flash
memory.
All pins of the LIN System Basis Chip and the AVR microcontroller are bonded out to
provide customers the same flexibility for their applications as they have when using
discrete parts.
图案.ATA6617应用框图
ATA6617 is a System-in-Package (SiP) product, which is particularly suited for complete
LIN-bus node applications. It supports highly integrated solutions for in-vehicle LIN networks. The first chip is the LIN-system-basis-chip (LIN-SBC) ATA6624, which
has an integrated LIN transceiver, a 5V regulator and a window watchdog. The second
chip is an automotive microcontroller from Atmel®’s series of AVR 8-bit microcontroller with advanced RISC architecture, the ATtiny167 with 16-Kbytes flash memory.
All pins of the LIN System Basis Chip and the AVR microcontroller are bonded out to provide customers the same flexibility for their applications as they have when using discrete parts.
ATA6617通用特性:
Single-package High Performance, Low Power AVR® 8-bit Microcontroller with LIN Transceiver, 5V Regulator and Watchdog
Very Low Current Consumption in Sleep Mode
16 Kbytes Flash Memory for Application Program (ATA6617)
Supply Voltage up to 40V
Operating Voltage: 5V to 27V
Temperature Range: Tcase –40°C to +125°C
QFN38, 5 mm x7 mm Package
LIN System-basis-chip Block(LIN-SBC)
The LIN-SBC is a fully integrated LIN transceiver, which complies with the LIN 2.0 and
SAEJ2602-2 specifications. It has a low-drop voltage regulator with a 5V/50 mA output and a window watchdog.
The LIN-SBC is designed to handle the low-speed data communication in vehicles, e.g., in convenience electronics. Improved slope control at the LIN-driver ensures secure data
communication up to 20 kBaud. Sleep Mode and Silent Mode guarantee very low current
consumption.
LIN-SBC 主要特性:
Master and Slave Operation Possible
Supply Voltage up to 40V
Operating voltage VS = 5V to 27V
Typically 10 μA Supply Current During Sleep Mode
Typically 57 μA Supply Current in Silent Mode
Linear Low-drop Voltage Regulator:
Normal, Fail-safe, and Silent Mode
VCC = 5.0V ±2%
In Sleep Mode VCC is Switched Off
VCC Undervoltage Detection (4 ms Reset Time) and Watchdog Reset Logical Combined at Open Drain Output NRES
Negative Trigger Input for Watchdog
Boosting the Voltage Regulator Possible with an External NPN Transistor
LIN Physical Layer According to LIN 2.0 Specification and SAEJ2602-2
Wake-up Capability via LIN-bus, Wake Pin, or Kl_15 Pin
INH Output to Control an External Voltage Regulator or to Switch off the Master Pull-up Resistor
TXD Time-out Timer
Bus Pin is Overtemperature and Short-circuit Protected versus GND and Battery
Adjustable Watchdog Time via External Resistor
Advanced EMC and ESD Performance
ESD HBM 8 kV at Pins LIN and VS According to STM5.1
图3.LIN-SBC 方框图
ATtiny167 MCU
ATtiny167 Microcontroller Block for ATA6617
The ATtiny167 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny167 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The ATtiny167 provides the following features: 16K byte of In-System Programmable Flash, 512 bytes EEPROM, 512 bytes SRAM, 6 general purpose I/O lines, 32 general purpose working registers, one 8-bit Timer/Counter with compare modes, one 8-bit high speed Timer/Counter, Universal Serial Interface, a LIN controller, Internal and External Interrupts, a 4-channel, 10-bit ADC, a programmable Watchdog Timer with internal Oscillator, and three software selectable power saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counter, ADC, Analog Comparator, and Interrupt system to continue functioning. The Power-down mode saves the register contents, disabling all chip functions until the next Interrupt or Hardware Reset. The ADC Noise Reduction mode stops the CPU and all I/O modules except ADC, to minimize switching noise during ADC conversions.
The device is manufactured using Atmel’s high density non-volatile memory technology. The On-chip ISP Flash allows the Program memory to be re-programmed In-System through an SPI serial interface, by a conventional non-volatile memory programmer or by an On-chip boot code running on the AVR core. The Boot program can use any interface to download the application program in the Flash memory. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the Atmel ATtiny167 is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications.
The ATtiny167 AVR is supported with a full suite of program and system development tools including: C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators, and Evaluation kits.
ATtiny167 MCU主要特性:
High Performance, Low Power AVR 8-bit Microcontroller
Advanced RISC Architecture
123 Powerful Instructions – Most Single Clock Cycle Execution
32 .8 General Purpose Working Registers
Fully Static Operation
Non-volatile Program and Data Memories
16 Kbytes of In-System Programmable (ISP) Program Memory Flash
Endurance: 10,000 Write/Erase Cycles
512 Bytes In-System Programmable EEPROM
Endurance: 100,000 Write/Erase Cycles
512 Bytes Internal SRAM
Programming Lock for Self-Programming Flash Program and EEPROM Data Security
Low Size LIN/UART Software In-System Programmable
Peripheral Features
LIN 2.1 and 1.3 Controller or 8-Bit UART
8-bit Asynchronous Timer/Counter0:
10-bit Clock Prescaler
1 Output Compare or 8-bit PWM Channel
16-bit Synchronous Timer/Counter1:
10-bit Clock Prescaler
External Event Counter
2 Output Compares Units or 16-bit PWM Channels on 2x 4 Separated Pins
Master/Slave SPI Serial Interface,
Universal Serial Interface (USI) with Start Condition Detector (Master/Slave SPI, TWI, AES, ...)
10-bit ADC:
11 Single Ended Channels
16 Differential ADC Channel Pairs with Programmable Gain (8x or 20x)
On-chip Analog Comparator with Selectable Voltage Reference
100 μA ±6% Current Source (LIN Node Identification)
On-chip Temperature Sensor
Programmable Watchdog Timer with Separate On-chip Oscillator
Special Microcontroller Features
Dynamic Clock Switching (External/Internal RC/Watchdog Clock)
DebugWIRE On-chip Debug (OCD) System
Hardware In-System Programmable (ISP) via SPI Port
External and Internal Interrupt Sources
Interrupt and Wake-up on Pin Change
Low Power Idle, ADC Noise Reduction, and Power-down Modes
Enhanced Power-on Reset Circuit
Programmable Brown-out Detection Circuit
Internal Calibrated RC Oscillator 8MHz
4 MHz to 16 MHz and 32 KHz Crystal/Ceramic Resonator Oscillators
I/O and Packages
16 Programmable I/O Lines
20-pin SOIC, 32-pad QFN and 20-pin TSSOP
Operating Voltage:
2.7V to 5.5V for ATtiny167
Speed Grade:
0 MHz to 8 MHz at 2.7V to 5.5V (Automotive Temperature Range: –40°C to +125°C)
0 MHz to 16 MHz at 4.5V to 5.5V (Automotive Temperature Range: –40°C to +125°C)
图4. ATtiny167 MCU方框图
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: Internal clock, TXD, RXD, NRES, EN and NTRIG connected for LIN Slave. The software
must be appropriately programmed for the connection between the LIN-SBC and the AVR.
SBC: LIN slave operation with watchdog enabled, 5V regulator and KL15 wake up
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图5. ATA6617典型LIN从应用电路
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: TXD, RXD, NRES and EN connected for LIN Master. The software must be appropriately
programmed for the connection between the LIN-SBC and the AVR. System clock controlled by
external crystal.
LIN-SBC: Master application, 1k Master resistance connected via diode to VS, local wake up via
pin WAKE; watchdog is enabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图6. ATA6617典型LIN主应用电路
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: Internal clock, TXD, RXD, NRES and EN connected for LIN Slave. The software must be
appropriately programmed for the connection between the LIN-SBC and the AVR.
SBC: LIN slave operation with 5V regulator, watchdog disabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图6. ATA6617有最少外接元件的LIN 从应用电路
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: TXD, RXD, NRES and EN connected for LIN Master. The software must be appropriately
programmed for the connection between the LIN-SBC and the AVR. System clock controlled by
external crystal.
LIN-SBC: Master application, 10k Master resistance connected via diode to VS, 1k master resistance
will be switched off via pin INH during Sleep Mode, local wake up via pin WAKE; watchdog
is enabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图7. ATA6617典型LIN 主应用电路(1 kohm LIN Master Pull-up Switched Off during Sleep and Silent Mode)
Note: Note: All open pins of the SiP can be used for application-specific purposes.
AVR: TXD, RXD, NRES and EN connected for LIN Master. The software must be appropriately
programmed for the connection between the LIN-SBC and the AVR. PA7 and PA2 are used as
analog inputs. In addition, the application supports a 3 x 3 switch matrix. PA4, 5, 6 are used as
PWM outputs to control the brightness of light emitting diodes. System clock controlled by external
crystal.
LIN-SBC: LIN slave application, 1k Master resistance connected via diode to VBAT, local wake up
via pin WAKE; watchdog is enabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
ATA6617 is a System-in-Package (SiP) product, which is particularly suited for complete
LIN-bus node applications. It supports highly integrated solutions for in-vehicle
LIN networks. The first chip is the LIN-system-basis-chip (LIN-SBC) ATA6624, which
has an integrated LIN transceiver, a 5V regulator and a window watchdog. The second
chip is an automotive microcontroller from Atmel®’s series of AVR 8-bit
microcontroller with advanced RISC architecture, the ATtiny167 with 16-Kbytes flash
memory.
All pins of the LIN System Basis Chip and the AVR microcontroller are bonded out to
provide customers the same flexibility for their applications as they have when using
discrete parts.
图案.ATA6617应用框图
ATA6617 is a System-in-Package (SiP) product, which is particularly suited for complete
LIN-bus node applications. It supports highly integrated solutions for in-vehicle LIN networks. The first chip is the LIN-system-basis-chip (LIN-SBC) ATA6624, which
has an integrated LIN transceiver, a 5V regulator and a window watchdog. The second
chip is an automotive microcontroller from Atmel®’s series of AVR 8-bit microcontroller with advanced RISC architecture, the ATtiny167 with 16-Kbytes flash memory.
All pins of the LIN System Basis Chip and the AVR microcontroller are bonded out to provide customers the same flexibility for their applications as they have when using discrete parts.
ATA6617通用特性:
Single-package High Performance, Low Power AVR® 8-bit Microcontroller with LIN Transceiver, 5V Regulator and Watchdog
Very Low Current Consumption in Sleep Mode
16 Kbytes Flash Memory for Application Program (ATA6617)
Supply Voltage up to 40V
Operating Voltage: 5V to 27V
Temperature Range: Tcase –40°C to +125°C
QFN38, 5 mm x7 mm Package
LIN System-basis-chip Block(LIN-SBC)
The LIN-SBC is a fully integrated LIN transceiver, which complies with the LIN 2.0 and
SAEJ2602-2 specifications. It has a low-drop voltage regulator with a 5V/50 mA output and a window watchdog.
The LIN-SBC is designed to handle the low-speed data communication in vehicles, e.g., in convenience electronics. Improved slope control at the LIN-driver ensures secure data
communication up to 20 kBaud. Sleep Mode and Silent Mode guarantee very low current
consumption.
LIN-SBC 主要特性:
Master and Slave Operation Possible
Supply Voltage up to 40V
Operating voltage VS = 5V to 27V
Typically 10 μA Supply Current During Sleep Mode
Typically 57 μA Supply Current in Silent Mode
Linear Low-drop Voltage Regulator:
Normal, Fail-safe, and Silent Mode
VCC = 5.0V ±2%
In Sleep Mode VCC is Switched Off
VCC Undervoltage Detection (4 ms Reset Time) and Watchdog Reset Logical Combined at Open Drain Output NRES
Negative Trigger Input for Watchdog
Boosting the Voltage Regulator Possible with an External NPN Transistor
LIN Physical Layer According to LIN 2.0 Specification and SAEJ2602-2
Wake-up Capability via LIN-bus, Wake Pin, or Kl_15 Pin
INH Output to Control an External Voltage Regulator or to Switch off the Master Pull-up Resistor
TXD Time-out Timer
Bus Pin is Overtemperature and Short-circuit Protected versus GND and Battery
Adjustable Watchdog Time via External Resistor
Advanced EMC and ESD Performance
ESD HBM 8 kV at Pins LIN and VS According to STM5.1
图3.LIN-SBC 方框图
ATtiny167 MCU
ATtiny167 Microcontroller Block for ATA6617
The ATtiny167 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny167 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The ATtiny167 provides the following features: 16K byte of In-System Programmable Flash, 512 bytes EEPROM, 512 bytes SRAM, 6 general purpose I/O lines, 32 general purpose working registers, one 8-bit Timer/Counter with compare modes, one 8-bit high speed Timer/Counter, Universal Serial Interface, a LIN controller, Internal and External Interrupts, a 4-channel, 10-bit ADC, a programmable Watchdog Timer with internal Oscillator, and three software selectable power saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counter, ADC, Analog Comparator, and Interrupt system to continue functioning. The Power-down mode saves the register contents, disabling all chip functions until the next Interrupt or Hardware Reset. The ADC Noise Reduction mode stops the CPU and all I/O modules except ADC, to minimize switching noise during ADC conversions.
The device is manufactured using Atmel’s high density non-volatile memory technology. The On-chip ISP Flash allows the Program memory to be re-programmed In-System through an SPI serial interface, by a conventional non-volatile memory programmer or by an On-chip boot code running on the AVR core. The Boot program can use any interface to download the application program in the Flash memory. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the Atmel ATtiny167 is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications.
The ATtiny167 AVR is supported with a full suite of program and system development tools including: C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators, and Evaluation kits.
ATtiny167 MCU主要特性:
High Performance, Low Power AVR 8-bit Microcontroller
Advanced RISC Architecture
123 Powerful Instructions – Most Single Clock Cycle Execution
32 .8 General Purpose Working Registers
Fully Static Operation
Non-volatile Program and Data Memories
16 Kbytes of In-System Programmable (ISP) Program Memory Flash
Endurance: 10,000 Write/Erase Cycles
512 Bytes In-System Programmable EEPROM
Endurance: 100,000 Write/Erase Cycles
512 Bytes Internal SRAM
Programming Lock for Self-Programming Flash Program and EEPROM Data Security
Low Size LIN/UART Software In-System Programmable
Peripheral Features
LIN 2.1 and 1.3 Controller or 8-Bit UART
8-bit Asynchronous Timer/Counter0:
10-bit Clock Prescaler
1 Output Compare or 8-bit PWM Channel
16-bit Synchronous Timer/Counter1:
10-bit Clock Prescaler
External Event Counter
2 Output Compares Units or 16-bit PWM Channels on 2x 4 Separated Pins
Master/Slave SPI Serial Interface,
Universal Serial Interface (USI) with Start Condition Detector (Master/Slave SPI, TWI, AES, ...)
10-bit ADC:
11 Single Ended Channels
16 Differential ADC Channel Pairs with Programmable Gain (8x or 20x)
On-chip Analog Comparator with Selectable Voltage Reference
100 μA ±6% Current Source (LIN Node Identification)
On-chip Temperature Sensor
Programmable Watchdog Timer with Separate On-chip Oscillator
Special Microcontroller Features
Dynamic Clock Switching (External/Internal RC/Watchdog Clock)
DebugWIRE On-chip Debug (OCD) System
Hardware In-System Programmable (ISP) via SPI Port
External and Internal Interrupt Sources
Interrupt and Wake-up on Pin Change
Low Power Idle, ADC Noise Reduction, and Power-down Modes
Enhanced Power-on Reset Circuit
Programmable Brown-out Detection Circuit
Internal Calibrated RC Oscillator 8MHz
4 MHz to 16 MHz and 32 KHz Crystal/Ceramic Resonator Oscillators
I/O and Packages
16 Programmable I/O Lines
20-pin SOIC, 32-pad QFN and 20-pin TSSOP
Operating Voltage:
2.7V to 5.5V for ATtiny167
Speed Grade:
0 MHz to 8 MHz at 2.7V to 5.5V (Automotive Temperature Range: –40°C to +125°C)
0 MHz to 16 MHz at 4.5V to 5.5V (Automotive Temperature Range: –40°C to +125°C)
图4. ATtiny167 MCU方框图
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: Internal clock, TXD, RXD, NRES, EN and NTRIG connected for LIN Slave. The software
must be appropriately programmed for the connection between the LIN-SBC and the AVR.
SBC: LIN slave operation with watchdog enabled, 5V regulator and KL15 wake up
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图5. ATA6617典型LIN从应用电路
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: TXD, RXD, NRES and EN connected for LIN Master. The software must be appropriately
programmed for the connection between the LIN-SBC and the AVR. System clock controlled by
external crystal.
LIN-SBC: Master application, 1k Master resistance connected via diode to VS, local wake up via
pin WAKE; watchdog is enabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图6. ATA6617典型LIN主应用电路
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: Internal clock, TXD, RXD, NRES and EN connected for LIN Slave. The software must be
appropriately programmed for the connection between the LIN-SBC and the AVR.
SBC: LIN slave operation with 5V regulator, watchdog disabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图6. ATA6617有最少外接元件的LIN 从应用电路
Note: All open pins of the SiP can be used for application-specific purposes.
AVR: TXD, RXD, NRES and EN connected for LIN Master. The software must be appropriately
programmed for the connection between the LIN-SBC and the AVR. System clock controlled by
external crystal.
LIN-SBC: Master application, 10k Master resistance connected via diode to VS, 1k master resistance
will be switched off via pin INH during Sleep Mode, local wake up via pin WAKE; watchdog
is enabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
图7. ATA6617典型LIN 主应用电路(1 kohm LIN Master Pull-up Switched Off during Sleep and Silent Mode)
Note: Note: All open pins of the SiP can be used for application-specific purposes.
AVR: TXD, RXD, NRES and EN connected for LIN Master. The software must be appropriately
programmed for the connection between the LIN-SBC and the AVR. PA7 and PA2 are used as
analog inputs. In addition, the application supports a 3 x 3 switch matrix. PA4, 5, 6 are used as
PWM outputs to control the brightness of light emitting diodes. System clock controlled by external
crystal.
LIN-SBC: LIN slave application, 1k Master resistance connected via diode to VBAT, local wake up
via pin WAKE; watchdog is enabled.
RF emissions: best results for RF emissions will be achieved by connecting the blocking capacitors
of the microcontroller supply (C1 and C2) between the microcontroller pins and the
GND/PVCC line.
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