ATMEGA48P-20MUR Atmel, ATMEGA48P-20MUR Datasheet - Page 322
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA48P-20MUR
Manufacturer Part Number
ATMEGA48P-20MUR
Description
MCU AVR 4K FLASH 20MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA168P-20AU.pdf
(420 pages)
Specifications of ATMEGA48P-20MUR
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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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29. Typical Characteristics
29.1
29.1.1
8025L–AVR–7/10
ATmega48P Typical Characteristics
Active Supply Current
The following charts show typical behavior. These figures are not tested during manufacturing.
All current consumption measurements are performed with all I/O pins configured as inputs and
with internal pull-ups enabled. A square wave generator with rail-to-rail output is used as clock
source.
All Active- and Idle current consumption measurements are done with all bits in the PRR register
set and thus, the corresponding I/O modules are turned off. Also the Analog Comparator is dis-
abled during these measurements. The
and
every I/O module controlled by the Power Reduction Register. See
on page 43
The power consumption in Power-down mode is independent of clock selection.
The current consumption is a function of several factors such as: operating voltage, operating
frequency, loading of I/O pins, switching rate of I/O pins, code executed and ambient tempera-
ture. The dominating factors are operating voltage and frequency.
The current drawn from capacitive loaded pins may be estimated (for one pin) as C
C
The parts are characterized at frequencies higher than test limits. Parts are not guaranteed to
function properly at frequencies higher than the ordering code indicates.
The difference between current consumption in Power-down mode with Watchdog Timer
enabled and Power-down mode with Watchdog Timer disabled represents the differential cur-
rent drawn by the Watchdog Timer.
Figure 29-1. Active Supply Current vs. Low Frequency (0.1-1.0 MHz).
L
= load capacitance, V
page 375
1.4
1.2
0.8
0.6
0.4
0.2
for details.
1
0
shows the additional current consumption compared to I
0
0.1
CC
0.2
= operating voltage and f = average switching frequency of I/O pin.
0.3
”Supply Current of IO Modules” on page
0.4
Frequency (MHz)
0.5
0.6
ATmega48P/88P/168P
0.7
0.8
”Power Reduction Register”
CC
0.9
Active and I
1
327,
5.5 V
5.0 V
4.5 V
4.0 V
3.3 V
2.7 V
1.8 V
L
*
V
CC
CC
page 351
*f where
Idle for
322
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