AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 195

• 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

7734P–AVR–08/10
Figure 16-1.
Notes:
ACMP3_OUT_A
ACMP1_OUT
ACMP2_OUT
ACMP3_OUT
ACMPM1
ACMPM2
ACMPM3
ACMPM
ACMP1
ACMP2
ACMP3
Aref
AVcc
1. .Refer to
2. The voltage on Vref is defined in
AC1 OE
AC2 OE
AC3 OE
AC3 OEA
Internal 2.56V
Vref
Ref e rence
REFS0
Analog Comparator Block Diagram
REFS1
DAC 10
DAC EN
Figure 2-1 on page 3
AC2 OI
AC1 OI
AC3 OI
Band Gap
Band Gap
Band Gap
+REFS1
REFS0
Res ult
DAC
Vref
/1.60
/2.13
/3.20
/6.40
and for Analog Comparator pin placement
17-3 ”ADC Voltage Reference Selection” on page 217
AC1 M
2 1 0
AC2 M
2 1 0
AC3 M
2 1 0
+
-
+
-
AC1 EN
AC2 EN
+
-
AC3 EN
AC2 H
2 1 0
AC1 H
2 1 0
AC3 H
2 1 0
Interrupt Sensitivit y Con trol
Interrupt Sensitivit y Con trol
Interrupt Sensitivit y Con trol
AC1 IS1
AC2 IS1
AC3 IS1
AC1 IS0
AC2 IS0
AC3 IS0
AT90PWM81
AC1 IE
AC1 ICE
AC2 IE
AC3 IE
AC1 IF
Analog Compar a tor 1 Interrupt
T1 Captur e T rigger
AC2 IF
Analog Compar a tor 2 Interrupt
AC1 O (to PSCR)
AC2 O (to PSC2)
AC3 IF
Analog Compar a tor 3 Interrupt
AC3 O (to PSC2)
195