ATtiny20 Atmel Corporation, ATtiny20 Datasheet - Page 17

• Manufacturer Part Number: ATtiny20
• Manufacturer: Atmel Corporation

Specifications of ATtiny20

• Flash (kbytes): 2 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 5
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 12
• Ext Interrupts: 12
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.12
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 3
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

9. Datasheet Revision History
9.1
9.2
8235BS–AVR–04/11
Rev. 8235B – 04/11
Rev. 8235A – 03/10
1. Removed Preliminary status
2. Updated:
3. Added:
1. Initial revision.
– Bit syntax throughout the datasheet, e.g. from CS02:0 to CS0[2:0]
– Idle Mode description on
–
–
– Sentence on low impedance sources in
– Description on 16-bit registers on
– Description on Stack Pointer on
– List of active modules in
– Description on reset pulse width in
– Program code on
– Bit description in
– Section
– Signal descriptions in
– Equations on
– Terminology in sections describing extreme values on
– Description on creating frequency waveforms on
– Signal routing in
– TOP definition in
– Signal names in
– TWSHE bit description in
– SPI slave assembly code example on
–
– Section
– Characteristics in
– Note on internal voltage reference in
– PRADC in
– MISO output driver errata for device rev. A in
“Capacitive Touch Sensing” on page 6
“Disclaimer” on page 6
Table 20-1 on page 172
“Compare Output Mode and Waveform Generation” on page 65
“Speed” on page 174
Table 21-2 on page 180
page
Figure 12-3 on page 81
Figure 12-1 on page 78
Figure 11-3 on page 63
Table 12-1 on page 79
page 39
Figure 21-3 on page
66,
Figure 11-5 on page
page
“Idle Mode” on page 25
page 5
“TWSCRA – TWI Slave Control Register A” on page 146
67, and
page 10
page 8
“Watchdog Reset” on page 32
Table 15-4 on page 124
page 69
page 132
181, and
(section updated and moved)
“Analog Input Circuitry” on page 119
66, and
“Errata” on page 217
Figure 21-8 on page 184
page 69
Figure 11-7 on page 68
page
67, and
page 69
ATtiny20
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