AT90PWM3B Atmel Corporation, AT90PWM3B Datasheet - Page 47
AT90PWM3B
Manufacturer Part Number
AT90PWM3B
Description
Manufacturer
Atmel Corporation
Specifications of AT90PWM3B
Flash (kbytes)
8 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
Hardware Qtouch Acquisition
No
Max I/o Pins
27
Ext Interrupts
4
Usb Speed
No
Usb Interface
No
Spi
1
Uart
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
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 105
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
5
Output Compare Channels
16
Input Capture Channels
1
Pwm Channels
12
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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Quantity
Price
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Part Number:
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Part Number:
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20 000
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9.0.4
4317J–AVR–08/10
External Reset
Figure 9-2.
Figure 9-3.
An External Reset is generated by a low level on the RESET pin. Reset pulses longer than the
minimum pulse width (see
Shorter pulses are not guaranteed to generate a reset. When the applied signal reaches the
Reset Threshold Voltage – V
the Time-out period – t
Figure 9-4.
INTERNAL
INTERNAL
TIME-OUT
TIME-OUT
RESET
RESET
RESET
RESET
V
V
MCU Start-up, RESET Tied to V
MCU Start-up, RESET Extended Externally
External Reset During Operation
CC
CC
CC
TOUT
– has expired.
Table
RST
V
V
V
POT
POT
RST
– on its positive edge, the delay counter starts the MCU after
9-1) will generate a reset, even if the clock is not running.
t
TOUT
CC
V
RST
t
TOUT
AT90PWM2/3/2B/3B
47
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