AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 256
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AT90PWM1-16MU
Manufacturer Part Number
AT90PWM1-16MU
Description
IC AVR PWM 8KB FLASH 16MHZ 32QFN
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM1-16SU.pdf
(297 pages)
Specifications of AT90PWM1-16MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
19
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 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 ~ 105°C
Package / Case
32-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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24.2.2.1
24.2.2.2
256
AT90PWM1
Example 1
Example 2
Calculate the expected current consumption in idle mode with a 8 MHz Xtal oscillator feeding the
PLL to generate a 16 MHz clock further divided by 16 using the CLKPR at V
tem clock is thus 1 MHz. Peripherals and I/O are not active.
Reading from
0.7 mA and the prescaler will need 16*30= 0.48 mA as it is clocked at 16 MHz.
Reading from
V
The total current consumption in idle mode with the XTAL and the PLL gives:
Calculate the expected current consumption in active mode with a 4 MHz Xtal oscillator clock
further divided by 8 using the CLKPR at V
erals and I/O are not active.
Reading from
need 4*50= 0.2 mA as it is clocked at 4MHz.
Reading from
V
The total typical current consumption in active mode with the 4MHz XTAL gives:
CC
CC
= 3.0V and F = 1MHz.
=5.0V and F = 0.5MHz.
I
CC
total
I
CC
≈
0.125
total
Table
Table
Figure
Figure
≈
0.06
+
0.7
24-3, we find that the Xtal oscillator current is 0.06 mA and the prescaler will
24-3, we find that the Xtal oscillator current is 0.125 mA, the PLL current is
24-5, we find that the idle current consumption of the core is ~0,17mA at
+
24-1, we find that the idle current consumption of the core is ~0,6 mA at
+
0.2
0.48
+
0.6
+
0.17
≈
0.86mA
≈
1.475mA
CC
= 5.0V. The system clock is thus 0.5 MHz. Periph-
CC
= 3.0V. The sys-
4378C–AVR–09/08
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