ATMEGA48-20MJ Atmel, ATMEGA48-20MJ Datasheet - Page 286
ATMEGA48-20MJ
Manufacturer Part Number
ATMEGA48-20MJ
Description
IC AVR MCU 4K 5V 20MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48-20MJ
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ATMEGA48-24MJ
ATMEGA48-24MJ
ATMEGA48-24MJ
- Current page: 286 of 378
- Download datasheet (8Mb)
286
ATmega48/88/168
Table 27-5.
Note:
Table 27-6.
Notes:
Extended Fuse Byte
–
–
–
–
–
BOOTSZ1
BOOTSZ0
BOOTRST
High Fuse Byte
RSTDISBL
DWEN
SPIEN
WDTON
EESAVE
BODLEVEL2
BODLEVEL1
BODLEVEL0
(2)
1. The default value of BOOTSZ1..0 results in maximum Boot Size. See
1. See
2. The SPIEN Fuse is not accessible in serial programming mode.
3. See
4. See
(3)
289
(1)
(4)
(4)
(4)
Extended Fuse Byte for mega88/168
Fuse High Byte
for details.
“Alternate Functions of Port C” on page 80
“WDTCSR – Watchdog Timer Control Register” on page 52
Table 28-4 on page 306
Bit No
Bit No
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
for BODLEVEL Fuse decoding.
Description
–
–
–
–
–
Select Boot Size
(see
and
for details)
Select Boot Size
(see
and
for details)
Select Reset Vector
Description
External Reset Disable
debugWIRE Enable
Enable Serial Program and
Data Downloading
Watchdog Timer Always On
EEPROM memory is
preserved through the Chip
Erase
Brown-out Detector trigger
level
Brown-out Detector trigger
level
Brown-out Detector trigger
level
Table 26-9 on page 281
Table 26-9 on page 281
Table 26-6 on page 280
Table 26-6 on page 280
for description of RSTDISBL Fuse.
Default Value
1
1
1
1
1
0 (programmed)
0 (programmed)
1 (unprogrammed)
Default Value
1 (unprogrammed)
1 (unprogrammed)
0 (programmed, SPI
programming enabled)
1 (unprogrammed)
1 (unprogrammed), EEPROM
not reserved
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
for details.
Table 27-11 on page
2545S–AVR–07/10
(1)
(1)
Related parts for ATMEGA48-20MJ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC AVR MCU 4K 5V 20MHZ 32-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 20MHZ 5V 32TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 20MHZ 5V 28DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 20MHZ 5V 32-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 5V 20MHZ 32-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 5V 20MHZ 32-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 5V 20MHZ 28-DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 5V 20MHZ 28-DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K FLASH 20MHZ 28QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 32QFN
Manufacturer:
Atmel
Datasheet: