ATMEGA168-15AZ Atmel, ATMEGA168-15AZ Datasheet - Page 302

MCU AVR 16K FLASH 15MHZ 32-TQFP

ATMEGA168-15AZ

Manufacturer Part Number
ATMEGA168-15AZ
Description
MCU AVR 16K FLASH 15MHZ 32-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet

Specifications of ATMEGA168-15AZ

Package / Case
32-TQFP, 32-VQFP
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
23
Eeprom Size
512 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
1K x 8
Program Memory Size
16KB (16K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
I²C, SPI, UART/USART
Core Size
8-Bit
Cpu Family
ATmega
Device Core
AVR
Device Core Size
8b
Frequency (max)
16MHz
Interface Type
2-Wire/USART/Serial
Total Internal Ram Size
1KB
# I/os (max)
23
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
32
Package Type
TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA168-15AZ
Manufacturer:
Atmel
Quantity:
10 000
26.8
302
Precaution Against OSCCAL Discontinuity
ATmega48/88/168 Automotive
Figure 26-3. Dichotomic Algorithm Used for LIN Slave Clock Re-synchronization
The
value. For one correct re-synchronization, the frequency change must be kept on the same side
of the discontinuity (no change of OSCCAL[7]). Since there will be no device having frequency
changed by more than 10% (see
by more than 10%. Therefore, when calibration tries to cross the border because of subsequent
increase (or decrease) in OSCCAL values, then the routine must be stopped.
example: For parts operating in the lower part of the curve, if New_OSCCAL >127 then
New_OSCCAL = 127. Similar for parts operating on the high side of the discontinuity.
Figure 28-23
illustrates the on-purpose discontinuity of RC Frequency versus OSCCAL
Decrement
Increment
OSCCAL
OSCCAL
Figure
-2% < Delta(TBit) < 2%
Delta(TBit) > 2%
Delta(TBit) < -2%
28-21), thus no reason to change the frequency value
Measuring
actual TBit
N
N
Y
STOP:
Oscillator
Calibrated
7530I–AVR–02/10

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