ATtiny26 Atmel Corporation, ATtiny26 Datasheet - Page 34

• Manufacturer Part Number: ATtiny26
• Manufacturer: Atmel Corporation

Specifications of ATtiny26

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 11
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

External Reset
34
ATtiny26(L)
Figure 26. MCU Start-up, RESET Tied to VCC
Figure 27. MCU Start-up, RESET Controlled Externally
An External Reset is generated by a low level on the RESET pin. Reset pulses longer than 500
ns will generate a reset, even if the clock is not running. Shorter pulses are not guaranteed to
generate a reset. When the applied signal reaches the Reset Threshold Voltage – V
positive edge, the delay timer starts the MCU after the Time-out period t
Figure 28. External Reset During Operation
INTERNAL
INTERNAL
TIME-OUT
TIME-OUT
INTERNAL
TIME-OUT
RESET
RESET
RESET
RESET
RESET
RESET
VCC
VCC
VCC
V
V
V
POT
POT
RST
V
RST
t
TOUT
t
TOUT
V
RST
t
TOUT
TOUT
has expired.
1477K–AVR–08/10
RST
– on its