ATMEGA48A-PU Atmel, ATMEGA48A-PU Datasheet - Page 32

• Manufacturer Part Number: ATMEGA48A-PU
• Description: IC MCU AVR 4K FLASH 28PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48A-PU

• 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Controller Family/series: Atmega
• No. Of I/o's: 23
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 20MHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9. Datasheet Revision History
9.1
9.2
9.3
Rev. 8271C – 08/10
Rev. 8271B-04/10
Rev. 8271A-12/09
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
1.
2.
3.
1.
2.
3.
4.
5.
1.
2
Updated the “SRAM Data Memory”,
Updated
“32CC1”
“32CC1”
Updated
Corrected use of SBIS instructions in assembly code examples.
Corrected BOD and BODSE bits to R/W in
and
Figures for bandgap characterization added,
374,
ure 29-269 on page
Updated
package.
New datasheet 8271 with merged information for ATmega48PA, ATmega88PA,
ATmega168PA and ATmega48A, ATmega88A andATmega168A. Also included
information on ATmega328 and ATmega328P
Changes done:
Section 13.4 on page 93
– New devices added: ATmega48A/ATmega88A/ATmega168A and
– Updated Feature Description
– Updated
– Added note for BOD Disable on
– Added note on BOD and BODSE in
– Added limitation informatin for the application
– Added limitiation information for
– Added specified DC characteristice per processor
– Added typical characteristics per processor
– Removed execption information in
Figure 29-128 on page
ATmega328
page 93
Read-While-Write Self-Programming” on page 279
page 296
Table 8-8
”Packaging Information” on page 546
Package drawing.
”Ordering Information” on page 15
Package drawing added on
and
Table 2-1 on page 6
with correct value for timer oscilliator at xtal2/tos2
474,
”Register Description” on page 294
Figure 29-316 on page 499
399,
Figure 29-175 on page
Figure 7-3 on page
”Packaging Information” on page
page
”Program And Data Memory Lock Bits” on
Section 9.11.2 on page
Figure 29-34 on page
”Address Match Unit” on page
by replacing 28M1 with a correct corresponding
”MCUCR – MCU Control Register” on
40.
with CCU and CCUR code related to
and
424,
Figure 29-363 on page
”Boot Loader Support –
Figure 29-222 on page
19.
45,
349,
Section 11.5 on page 69
Figure 29-81 on page
23.
223.
523.
449,
Fig-