ATMEGA88-20MUR Atmel, ATMEGA88-20MUR Datasheet - Page 321

• Manufacturer Part Number: ATMEGA88-20MUR
• Description: MCU AVR 8K FLASH 20MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA88-20MUR

• 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: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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: *
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 20MHz
• Interface Type: SPI/TWI/USART
• Total Internal Ram Size: 1KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: MLF EP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30.3
2545T–AVR–05/11
Supply current of I/O modules
Figure 30-12. Idle supply current vs. V
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 30-1.
Table 30-2.
PRR bit
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
PRR bit
PRUSART0
PRTWI
PRTIM2
30
25
20
15
10
5
0
1.5
Additional current consumption for the different I/O modules (absolute values).
Additional current consumption (percentage) in active and idle mode.
Additional current consumption
compared to active with external clock
(see
Figure 30-2 on page
4.8%
3.3%
4.7%
2
Figure 30-1 on page 315
V
CC
= 2V, F = 1MHz
2.5
8.0µA
5.0µA
4.0µA
12µA
11µA
15µA
12µA
3
316)
CC
V
(32kHz external oscillator).
CC
3.5
and
(V)
V
Typical numbers
CC
4
= 3V, F = 4MHz
“Power reduction register” on page 41
51µA
75µA
72µA
32µA
24µA
95µA
75µA
Additional current consumption
compared to Idle with external clock
(see
Figure 30-8 on page
18%
26%
25%
4.5
Figure 30-7 on page 318
ATmega48/88/168
5
V
CC
5.5
319)
25°C
= 5V, F = 8MHz
220µA
315µA
300µA
130µA
100µA
400µA
315µA
and
321
for