ATtiny261A Atmel Corporation, ATtiny261A Datasheet - Page 6

• Manufacturer Part Number: ATtiny261A
• Manufacturer: Atmel Corporation

Specifications of ATtiny261A

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• 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: Yes
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 105
• 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: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

1.6
6
Serial Programming Characteristics
ATtiny261A
Figure 1-1.
Figure 1-2.
Table 1-5.
Note:
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
Symbol
1/t
1/t
t
t
t
t
t
t
SERIAL DATA INPUT
t
OVSH
SHOX
CLCL
CLCL
SHSL
SLSH
SLIV
CLCL
CLCL
1. 2 t
Parameter
Oscillator Frequency
Oscillator Period
Oscillator Frequency (V
Oscillator Period V
SCK Pulse Width High
SCK Pulse Width Low
MOSI Setup to SCK High
MOSI Hold after SCK High
SCK Low to MISO Valid
SAMPLE
MOSI
MISO
CLCL
SCK
Serial Programming Waveforms
Serial Programming Timing
Serial Programming Characteristics, T
(Unless Otherwise Noted)
(MOSI)
(MISO)
(SCK)
for f
ck
< 12 MHz, 3 t
t
OVSH
MSB
MSB
CC
= 4.5V - 5.5V
CC
CLCL
= 4.5V - 5.5V)
t
for f
SHSL
ck
>= 12 MHz
A
t
= -40°C to +105°C, V
SHOX
2 t
2 t
2 t
t
CLCL
CLCL
Min
250
CLCL
50
CLCL
0
0
(1)
(1)
t
SLSH
8197C–Appendix A–AVR–08/11
Typ
CC
t
SLIV
= 1.8 - 5.5V
Max
100
20
4
LSB
LSB
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns