AT90PWM1 Atmel Corporation, AT90PWM1 Datasheet - Page 254

• Manufacturer Part Number: AT90PWM1
• Manufacturer: Atmel Corporation

Specifications of AT90PWM1

• Flash (kbytes): 8 Kbytes
• Pin Count: 24
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 19
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 2
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 105
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 12
• Input Capture Channels: 1
• Pwm Channels: 7
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

24.2.1.1
24.2.1.2
254
AT90PWM1
Example 1
Example 2
are controlled by the Power Reduction Register. See
details.
Table 24-1.
Table 24-2.
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 USART, TIMER1, and SPI
enabled at V
add 18% for the USART, 26% for the SPI, and 11% for the TIMER1 module. Reading from
ure 24-5
total current consumption in idle mode with USART0, TIMER1, and SPI enabled, gives:
Same conditions as in example 1, but in active mode instead. From
we see that we need to add 3.3% for the USART, 4.8% for the SPI, and 2.0% for the TIMER1
module. Reading from
PRR bit
PRPSC2
PRPSC1
PRPSC0
PRTIM1
PRTIM0
PRSPI
PRUSART
PRADC
PRR bit
PRPSC2
PRPSC1
PRPSC0
PRTIM1
PRTIM0
PRSPI
PRUSART
PRADC
I
CC
total
≈
, we find that the idle current consumption is ~0,17mA at V
0.17mA
CC
CC
and frequency settings than listed in
Additional Current Consumption for the different I/O modules (absolute values)
Additional Current Consumption (percentage) in Active and Idle mode
= 3.0V and F = 1MHz. From
•
(
1
Additional Current consumption
compared to Active with external
clock
(see
10%
10%
10%
8.5%
4.3%
5.3%
15.6
10.5%
+
Typical numbers
350 uA
350 uA
350 uA
300 uA
200 uA
250 uA
550 uA
350 uA
0.36
Figure 24-1
Figure 24-1
+
0.22
V
CC
+
= 3V, F = 8MHz
, we find that the active current consumption is ~0,6mA at V
0.14
and
)
Figure
≈
0.29mA
Table
24-2)
Table
24-2, third column, we see that we need to
“Power Reduction Register” on page 39
24-1.
Additional Current consumption
compared to Idle with external clock
(see
25%
25%
25%
22%
11%
14%
36
25%
1.3 mA
1.3 mA
1.3 mA
1.15 mA
0.75 mA
0.9 mA
2 mA
1.3 mA
Figure 24-5
CC
V
Table
CC
= 3.0V and F = 1MHz. The
= 5V, F = 16MHz
and
24-2, second column
Figure
4378C–AVR–09/08
Table 24-2
24-6)
Fig-
for
CC