ATmega168 Automotive Atmel Corporation, ATmega168 Automotive Datasheet - Page 328
ATmega168 Automotive
Manufacturer Part Number
ATmega168 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA168_AUTOMOTIVE.pdf
(19 pages)
3.ATMEGA168_AUTOMOTIVE.pdf
(340 pages)
Specifications of ATmega168 Automotive
Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
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
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATMEGA168_AUTOMOTIVE PDF datasheet #2
- ATMEGA168_AUTOMOTIVE PDF datasheet #3
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33. Errata
33.1
33.2
33.3
328
Rev. E
Rev. D
Rev. A
ATmega48/88/168 Automotive
ATmega48
The revision letter in this section refers to the revision of the ATmega48 device.
•
If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in
the cycle before an overflow interrupt occurs, the interrupt may be lost.
Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF
before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
•
•
If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in
the cycle before an overflow interrupt occurs, the interrupt may be lost.
Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF
before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
If Vcc ramp up from a stable 150mV to 300mV plateau, the Power On Reset (POR) may not
reset the device properly.
None.
•
•
If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in
the cycle before an overflow interrupt occurs, the interrupt may be lost.
Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF
before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
If Vcc ramp up from a stable 150mV to 300mV plateau, the Power On Reset (POR) may not
reset the device properly.
Interrupts may be lost when writing the timer registers in the asynchronous timer
Interrupts may be lost when writing the timer registers in the asynchronous timer
POR sensitivity with Vcc ramp up from a very low supply voltage
Interrupts may be lost when writing the timer registers in the asynchronous timer
POR sensitivity with Vcc ramp up from a very low supply voltage
1. Interrupts may be lost when writing the timer registers in the asynchronous timer
Problem Fix/Workaround
1. Interrupts may be lost when writing the timer registers in the asynchronous timer
Problem Fix/Workaround
2. POR sensitivity with Vcc ramp up from a very low supply voltage
Problem Fix/Workaround
1. Interrupts may be lost when writing the timer registers in the asynchronous timer
Problem Fix/Workaround
2. POR sensitivity with Vcc ramp up from a very low supply voltage
7530I–AVR–02/10
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