ATmega48A Atmel Corporation, ATmega48A Datasheet - Page 299

• Manufacturer Part Number: ATmega48A
• 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

8271D–AVR–05/11
Table 28-5.
Note:
Table 28-6.
Note:
Table 28-7.
Extended Fuse Byte
–
–
–
–
–
BOOTSZ1
BOOTSZ0
BOOTRST
Extended Fuse Byte
–
–
–
–
–
BODLEVEL2
BODLEVEL1
BODLEVEL0
High Fuse Byte
RSTDISBL
DWEN
SPIEN
WDTON
(2)
1. The default value of BOOTSZ[1:0] results in maximum Boot Size. See
1. See
(3)
(1)
page
(1)
(1)
(1)
Extended Fuse Byte for ATmega88A/88PA/168A/168PA
Extended Fuse Byte for ATmega328/328P
Fuse High Byte for ATmega48A/48PA/88A/88PA/168A/168PA
Table 29-13 on page 324
304.
ATmega48A/PA/88A/PA/168A/PA/328/P
Bit No
Bit No
Bit No
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
Description
–
–
–
–
–
Select Boot Size
(see
Table 27-7 on page 292
Table 27-10 on page 293
for details)
Select Boot Size
(see
Table 27-7 on page 292
Table 27-10 on page 293
for details)
Select Reset Vector
Description
–
–
–
–
–
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
Description
External Reset Disable
debugWIRE Enable
Enable Serial Program and Data
Downloading
Watchdog Timer Always On
for BODLEVEL Fuse decoding.
and
and
Default Value
1
1
1
1
1
0 (programmed)
0 (programmed)
1 (unprogrammed)
Default Value
1
1
1
1
1
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
Default Value
1 (unprogrammed)
1 (unprogrammed)
0 (programmed, SPI
programming enabled)
1 (unprogrammed)
”Pin Name Mapping” on
(1)
(1)
299