AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 271

• Manufacturer Part Number: AT90PWM81
• Manufacturer: Atmel Corporation

Specifications of AT90PWM81

• Flash (kbytes): 8 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 20
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 3
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 1
• Output Compare Channels: 8
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

22.3.2
Table 22-2.
22.3.3
22.3.4
22.4
7734P–AVR–08/10
Frequency
Maximum Speed vs. V
128 kHz
Watchdog Oscillator Accuracy
External Clock Drive Waveforms
External Clock Drive
Accuracy of Watchdog Oscillator
V
IL1
Figure 22-1.
Table 22-3.
Maximum frequency is depending on V
12MHz when V
4.5V and 5.5V.
V
Calibration Accuracy
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
IH1
t
CLCL
CLCL
±40%
CC
CC
External Clock Drive Waveforms
External Clock Drive
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one
clock cycle to the next
is contained between 2.7V and 4.5V and equals 16Mhz when V
CC.
As shown in
Min.
83
30
30
0
V
CC
=2.7-5.5V
Figure 22-2
Max.
1.6
1.6
12
2
, the Maximum Frequency equals
Min.
62
20
20
0
V
CC
=4.5-5.5V
AT90PWM81
CC
is contained between
Max.
0.5
0.5
16
2
Units
MHz
μs
μs
ns
ns
ns
%
271