AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 256

• Manufacturer Part Number: AT90PWM1-16MU
• Description: IC AVR PWM 8KB FLASH 16MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

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

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