ATmega88 Automotive Atmel Corporation, ATmega88 Automotive Datasheet - Page 336

• Manufacturer Part Number: ATmega88 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATmega88 Automotive

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 24
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 150
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

336
ATmega48/88/168 Automotive
18 USART in SPI Mode ............................................................................. 192
19 2-wire Serial Interface .......................................................................... 201
20 Analog Comparator ............................................................................. 233
21 Analog-to-Digital Converter ................................................................ 237
22 debugWIRE On-chip Debug System .................................................. 254
17.9
17.10
18.1
18.2
18.3
18.4
18.5
18.6
18.7
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
20.1
21.1
21.2
21.3
21.4
21.5
21.6
22.1
22.2
22.3
22.4
USART Register Description .........................................................................184
Examples of Baud Rate Setting .....................................................................188
Overview ........................................................................................................192
Clock Generation ...........................................................................................192
SPI Data Modes and Timing ..........................................................................193
Frame Formats ..............................................................................................193
Data Transfer .................................................................................................196
USART MSPIM Register Description ............................................................198
AVR USART MSPIM vs. AVR SPI ................................................................200
Features ........................................................................................................201
2-wire Serial Interface Bus Definition ............................................................201
Data Transfer and Frame Format ..................................................................202
Multi-master Bus Systems, Arbitration and Synchronization .........................206
Overview of the TWI Module .........................................................................208
TWI Register Description ...............................................................................210
Using the TWI ................................................................................................214
Transmission Modes .....................................................................................218
Multi-master Systems and Arbitration ............................................................232
Analog Comparator Multiplexed Input ...........................................................236
Features ........................................................................................................237
Starting a Conversion ....................................................................................239
Prescaling and Conversion Timing ................................................................240
Changing Channel or Reference Selection ...................................................243
ADC Noise Canceler .....................................................................................244
ADC Conversion Result................................................................................. 249
Features ........................................................................................................254
Overview ........................................................................................................254
Physical Interface ..........................................................................................254
Software Break Points ...................................................................................255
7530I–AVR–02/10