ATmega48A Atmel Corporation, ATmega48A Datasheet - Page 2
ATmega48A
Manufacturer Part Number
ATmega48A
Description
Manufacturer
Atmel Corporation
Specifications of ATmega48A
Flash (kbytes)
4 Kbytes
Pin Count
32
Max. Operating Frequency
20 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
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
256
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 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
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1. Pin Configurations
Figure 1-1.
8271D–AVR–05/11
NOTE: Bottom pad should be soldered to ground.
Pinout ATmega48A/PA/88A/PA/168A/PA/328/P
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT19/OC2B/INT1) PD3
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT19/OC2B/INT1) PD3
(PCINT20/XCK/T0) PD4
(PCINT21/OC0B/T1) PD5
(PCINT20/XCK/T0) PD4
Table 1-1.
GND
GND
VCC
VCC
A
B
C
D
GND
E
F
VCC
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
28 MLF Top View
32 TQFP Top View
32UFBGA - Pinout ATmega48A/48PA/88A/88PA/168A/168PA
GND
VDD
PD2
PD3
PB6
PB7
1
ATmega48A/PA/88A/PA/168A/PA/328/P
21
20
19
18
17
16
15
24
23
22
21
20
19
18
17
PC2 (ADC2/PCINT10)
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
GND
AREF
AVCC
PB5 (SCK/PCINT5)
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
ADC7
GND
AREF
ADC6
AVCC
PB5 (SCK/PCINT5)
GND
VDD
PD1
PD4
PD6
PD5
2
NOTE: Bottom pad should be soldered to ground.
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT19/OC2B/INT1) PD3
PC6
PD0
PB0
PD7
3
(PCINT20/XCK/T0) PD4
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT22/OC0A/AIN0) PD6
(PCINT19/OC2B/INT1) PD3
(PCINT0/CLKO/ICP1) PB0
(PCINT21/OC0B/T1) PD5
(PCINT20/XCK/T0) PD4
(PCINT14/RESET) PC6
(PCINT23/AIN1) PD7
(PCINT16/RXD) PD0
(PCINT18/INT0) PD2
(PCINT17/TXD) PD1
GND
GND
VCC
VCC
PC4
PC5
PB2
PB1
4
1
2
3
4
5
6
7
8
GND
VCC
32 MLF Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 PDIP
ADC7
AREF
AVDD
PC2
PC3
PB3
28
27
26
25
24
23
22
21
20
19
18
17
16
15
5
PC5 (ADC5/SCL/PCINT13)
PC4 (ADC4/SDA/PCINT12)
PC3 (ADC3/PCINT11)
PC2 (ADC2/PCINT10)
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
GND
AREF
AVCC
PB5 (SCK/PCINT5)
PB4 (MISO/PCINT4)
PB3 (MOSI/OC2A/PCINT3)
PB2 (SS/OC1B/PCINT2)
PB1 (OC1A/PCINT1)
24
23
22
21
20
19
18
17
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
ADC7
GND
AREF
ADC6
AVCC
PB5 (SCK/PCINT5)
ADC6
GND
PC1
PC0
PB5
PB4
6
2
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