ATMEGA48A-PU Atmel, ATMEGA48A-PU Datasheet - Page 412

IC MCU AVR 4K FLASH 28PDIP

ATMEGA48A-PU

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

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA48A-PU
Manufacturer:
Microchip Technology
Quantity:
1 051
29.4.3
29.4.3.1
8271C–AVR–08/10
ATmega88PA: Supply Current of IO Modules
Example
The tables and formulas below can be used to calculate the additional current consumption for
the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules
are controlled by the Power Reduction Register. See
details.
Table 29-7.
Table 29-8.
It is possible to calculate the typical current consumption based on the numbers from
for other V
Calculate the expected current consumption in idle mode with TIMER1, ADC, and SPI enabled
at V
for the TIMER1, 26.3% for the ADC, and 21.5% for the SPI module. Reading from
on page
1MHz. The total current consumption in idle mode with TIMER1, ADC, and SPI enabled, gives:
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
PRR bit
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
PRR bit
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
I
CC
CC
total
= 2.0V and F = 1MHz. From
409, we find that the idle current consumption is ~0.027 mA at V
0.027 mA (1 + 0.136 + 0.263 + 0.215)
CC
and frequency settings than listed in
ATmega88PA: Additional Current Consumption for the different I/O modules
(absolute values)
ATmega88PA: Additional Current Consumption (percentage) in Active and Idle
mode
Typical numbers
3.0 uA
6.1 uA
5.2 uA
3.8 uA
Additional Current consumption
compared to Active with external
clock (see
406
407)
1.8%
3.9%
2.9%
2.1%
0.8%
3.5%
4.2%
1.5 uA
6.3 uA
5.2 uA
V
CC
and
= 2V, F = 1 MHz
Figure 29-143 on page
Figure 29-142 on page
Table
29-8, third column, we see that we need to add 13.6%
21.3 uA
45.4 uA
35.2 uA
25.6 uA
9.8 uA
40.0 uA
48.7 uA
V
0.043 mA
CC
= 3V, F = 4 MHz
Table
”Power Reduction Register” on page 42
Additional Current consumption
compared to Idle with external
clock (see
409
409)
11.4%
24.4%
18.6%
13.6%
5.2%
21.5%
26.3%
29-7.
and
Figure 29-148 on page
Figure 29-147 on page
97.9 uA
219.0 uA
149.5 uA
110.0 uA
39.6 uA
199.6 uA
247.0 uA
V
CC
= 5V, F = 8 MHz
CC
= 2.0V and F =
Figure 29-147
Table 29-8
412
for

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