ATMEGA168-15AZ Atmel, ATMEGA168-15AZ Datasheet - Page 5

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

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

2.3
2.4
2.4.1
2.4.2
2.4.3
7530I–AVR–02/10
Comparison Between ATmega48, ATmega88, and ATmega168
Pin Descriptions
VCC
GND
Port B (PB7..0) XTAL1/
XTAL2/TOSC1/TOSC2
Table 2-1.
The ATmega48, ATmega88 and ATmega168 differ only in memory sizes, boot loader support,
and interrupt vector sizes.
for the three devices.
Table 2-2.
ATmega88 and ATmega168 support a real Read-While-Write Self-Programming mechanism.
There is a separate Boot Loader Section, and the SPM instruction can only execute from there.
In ATmega48, there is no Read-While-Write support and no separate Boot Loader Section. The
SPM instruction can execute from the entire Flash.
Digital supply voltage.
Ground.
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Depending on the clock selection fuse settings, PB6 can be used as input to the inverting Oscil-
lator amplifier and input to the internal clock operating circuit.
-40 ; +85
-40 ; +105
-40 ; +125
Device
ATmega48
ATmega88
ATmega168
Temperature
Temperature Grade Identification for Automotive Products
Memory Size Summary
Flash
4K Bytes
8K Bytes
16K Bytes
Temperature
Identifier
T1
Table 2-2
Z
T
EEPROM
256 Bytes
512 Bytes
512 Bytes
summarizes the different memory and interrupt vector sizes
ATmega48/88/168 Automotive
Similar to Industrial Temperature Grade but with Automotive
Quality
Reduced Automotive Temperature Range
Full AutomotiveTemperature Range
RAM
512 Bytes
1K Bytes
1K Bytes
Comments
Interrupt Vector Size
1 instruction word/vector
1 instruction word/vector
2 instruction words/vector
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