ATMEGA48A-MMHR Atmel, ATMEGA48A-MMHR Datasheet - Page 273
![IC MCU AVR 4K FLASH 28QFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATMEGA48A-MMHR
Manufacturer Part Number
ATMEGA48A-MMHR
Description
IC MCU AVR 4K FLASH 28QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA48A-MMHR.pdf
(566 pages)
Specifications of ATMEGA48A-MMHR
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Speed
20MHz
Number Of I /o
23
Eeprom Size
256 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
512 x 8
Program Memory Size
4KB (4K 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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8271C–AVR–08/10
Similarly, when reading the Fuse High byte (FHB), load 0x0003 in the Z-pointer. When an LPM
instruction is executed within three cycles after the BLBSET and SELFPRGEN bits are set in the
SPMCSR, the value of the Fuse High byte will be loaded in the destination register as shown
below. See
byte.
Similarly, when reading the Extended Fuse byte (EFB), load 0x0002 in the Z-pointer. When an
LPM instruction is executed within three cycles after the BLBSET and SELFPRGEN bits are set
in the SPMCSR, the value of the Extended Fuse byte will be loaded in the destination register as
shown below. See
Fuse byte.
Fuse and Lock bits that are programmed, will be read as zero. Fuse and Lock bits that are
unprogrammed, will be read as one.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Bit
Rd
Bit
Rd
Table 27-5 on page 298
FHB7
FHB7
7
7
Table 27-5 on page 298
FHB6
FHB6
6
6
FHB5
FHB5
5
5
for detailed description and mapping of the Extended Fuse
for detailed description and mapping of the Extended
FHB4
FHB4
4
4
FHB3
FHB3
3
3
FHB2
FHB2
2
2
FHB1
FHB1
1
1
FHB0
FHB0
0
0
273
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