ATtiny87 Atmel Corporation, ATtiny87 Datasheet - Page 162

• Manufacturer Part Number: ATtiny87
• Manufacturer: Atmel Corporation

Specifications of ATtiny87

• Flash (kbytes): 8 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

15. LIN / UART - Local Interconnect Network Controller or UART
15.1
15.2
162
LIN Features
UART Features
ATtiny87/ATtiny167
The LIN (Local Interconnect Network) is a serial communications protocol which efficiently
supports the control of mechatronics nodes in distributed automotive applications, but is
equally suited for industrial applications. The main properties of the LIN bus are:
•
•
•
•
•
•
LIN provides a cost efficient bus communication where the bandwidth and versatility of CAN
are not required. The specification of the line driver/receiver needs to match the ISO9141
NRZ-standard.
If LIN is not required, the controller alternatively can be programmed as Universal Asynchro-
nous serial Receiver and Transmitter (UART).
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Single master with multiple slaves concept
Low cost silicon implementation based on common UART/SCI interface
Self synchronization with on-chip oscillator in slave node
Deterministic signal transmission with signal propagation time computable in advance
Low cost single-wire implementation
Speed up to 20 Kbit/s.
Hardware Implementation of LIN 2.1 (LIN 1.3 Compatibility)
Small, CPU Efficient and Independent Master/Slave Routines Based on “LIN Work Flow
Concept” of LIN 2.1 Specification
Automatic LIN Header Handling and Filtering of Irrelevant LIN Frames
Automatic LIN Response Handling
Extended LIN Error Detection and Signaling
Hardware Frame Time-out Detection
“Break-in-data” Support Capability
Automatic Re-synchronization to Ensure Proper Frame Integrity
Fully Flexible Extended Frames Support Capabilities
Full Duplex Operation (Independent Serial Receive and Transmit Processes)
Asynchronous Operation
High Resolution Baud Rate Generator
Hardware Support of 8 Data Bits, Odd/Even/No Parity Bit, 1 Stop Bit Frames
Data Over-Run and Framing Error Detection
8265B–AVR–09/10