ATtiny84 Atmel Corporation, ATtiny84 Datasheet - Page 183

• Manufacturer Part Number: ATtiny84
• Manufacturer: Atmel Corporation

Specifications of ATtiny84

• Flash (kbytes): 8 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 6
• Hardware Qtouch Acquisition: No
• 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): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• 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: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

20.8
8006K–AVR–10/10
Serial Programming Characteristics
Figure 20-4. Serial Programming Timing
Figure 20-5. Serial Programming Waveform
Table 20-12. Serial Programming Characteristics, T
Note:
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
Symbol
1/t
1/t
SERIAL DATA INPUT
t
t
t
t
t
t
OVSH
SHOX
CLCL
CLCL
SHSL
SLSH
CLCL
CLCL
1. 2 t
Parameter
Oscillator Frequency (ATtiny24/44/84V)
Oscillator Period (ATtiny24/44/84V)
Oscillator Freq. (ATtiny24/44/84, V
Oscillator Period (ATtiny24/44/84, V
SCK Pulse Width High
SCK Pulse Width Low
MOSI Setup to SCK High
MOSI Hold after SCK High
SAMPLE
MOSI
MISO
CLCL
(MOSI)
(MISO)
(Unless Otherwise Noted)
SCK
(SCK)
for f
ck
< 12 MHz, 3 t
t
OVSH
MSB
MSB
CLCL
for f
t
SHSL
ck
CC
CC
>= 12 MHz
= 4.5V - 5.5V)
= 4.5V - 5.5V)
A
= -40°C to +85°C, V
t
SHOX
2 t
2 t
2 t
t
CLCL
CLCL
Min
250
CLCL
50
CLCL
0
0
ATtiny24/44/84
(1)
(1)
t
SLSH
CC
Typ
= 1.8 - 5.5V
Max
20
4
LSB
LSB
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
183