AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 79
AT90PWM81
Manufacturer Part Number
AT90PWM81
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT90PWM161.pdf
(325 pages)
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
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7734P–AVR–08/10
ACMP1M, Analog Comparator 1 Negative Input. Configure the port pin as input with the internal pull-up
switched off to avoid the digital port function from interfering with the function of the Analog
Comparator.
PCSINr, PSCR Digital Input.
• XTAL1/PSCIN2/ACMP1_OUT – Bit 1
XTAL1: Chip clock Oscillator pin 1. Used for all chip clock sources except internal calibrated RC Oscil-
lator. When used as a clock pin, the pin can not be used as an I/O pin.
PCSIN2, PSC 2 Digital Input.
ACMP1_OUT, Analog Comparator 1 Output.
• RESET/OCD/INT2 – Bit 0
RESET, Reset pin: When the RSTDISBL Fuse is programmed, this pin functions as a normal I/O pin, and
the part will have to rely on Power-on Reset and Brown-out Reset as its reset sources. When the RST-
DISBL Fuse is unprogrammed, the reset circuitry is connected to the pin, and the pin can not be used as an
I/O pin.
If PE0 is used as a reset pin, DDE0, PORTE0 and PINE0 will all read 0.
INT2, External Interrupt source 2. This pin can serve as an External Interrupt source to the MCU.
Table 9-10
71.
Table 9-10.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
relates the alternate functions of Port E to the overriding signals shown in
Overriding Signals for Alternate Functions in PE2..PE0
PE2/XTAL2/ACM
P1M/PSCINr
PE1/XTAL1/PSCI
N2/ ACMP1_OUT
PE0/RESET/OCD/
INT2
AT90PWM81
Figure 9-5 on page
79
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