2
7530J–AVR–03/12
Atmel ATmega48/88/168 Automotive
1.
Pin Configurations
Figure 1-1.
Pinout ATmega48/88/168
1.1
Disclaimer
Typical values contained in this datasheet are based on simulations and characterization of
other AVR microcontrollers manufactured on the same process technology. Min and Max values
will be available after the device is characterized.
2.
Overview
The ATmega48/88/168 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced
RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega48/88/168 achieves throughputs approaching 1 MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
(PCINT19/OC2B/INT1) PD3
(PCINT20/XCK/T0) PD4
GND
VCC
GND
VCC
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
ADC7
GND
AREF
ADC6
AVCC
PB5 (SCK/PCINT5)
32
31
30
29
28
27
26
25
9
10
11
12
13
14
15
16
(PCINT21/OC0B/T1)
PD5
(PCINT22/OC0A/AIN0)
PD6
(PCINT23/AIN1)
PD7
(PCINT0/CLKO/ICP1)
PB0
(PCINT1/OC1A)
PB1
(PCINT2/SS/OC1B)
PB2
(PCINT3/OC2A/MOSI)
PB3
(PCINT4/MISO)
PB4
PD2
(INT0/PCINT18)
PD1
(TXD/PCINT17)
PD0
(RXD/PCINT16)
PC6
(RESET/PCINT14)
PC5
(ADC5/SCL/PCINT13)
PC4
(ADC4/SDA/PCINT12)
PC3
(ADC3/PCINT11)
PC2
(ADC2/PCINT10)
TQFP Top View
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
32
31
30
29
28
27
26
25
9
10
11
12
13
14
15
16
MLF Top View
(PCINT19/OC2B/INT1) PD3
(PCINT20/XCK/T0) PD4
GND
VCC
GND
VCC
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
ADC7
GND
AREF
ADC6
AVCC
PB5 (SCK/PCINT5)
(PCINT21/OC0B/T1)
PD5
(PCINT22/OC0A/AIN0)
PD6
(PCINT23/AIN1)
PD7
(PCINT0/CLKO/ICP1)
PB0
(PCINT1/OC1A)
PB1
(PCINT2/SS/OC1B)
PB2
(PCINT3/OC2A/MOSI)
PB3
(PCINT4/MISO)
PB4
PD2
(INT0/PCINT18)
PD1
(TXD/PCINT17)
PD0
(RXD/PCINT16)
PC6
(RESET/PCINT14)
PC5
(ADC5/SCL/PCINT13)
PC4
(ADC4/SDA/PCINT12)
PC3
(ADC3/PCINT11)
PC2
(ADC2/PCINT10)
NOTE: Bottom pad should be soldered to ground.