ATtiny40 Atmel Corporation, ATtiny40 Datasheet - Page 170

• Manufacturer Part Number: ATtiny40
• Manufacturer: Atmel Corporation

Specifications of ATtiny40

• Flash (kbytes): 4 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 18
• Ext Interrupts: 18
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• 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: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

21.8
170
Serial Programming Characteristics
ATtiny40
Figure 21-3. Serial Programming Timing
Table 21-9.
TPID ATA
TPIC LK
Symbol
1/t
t
t
t
t
t
t
CHCH
CLCH
CLOV
CLCL
IVCH
CHIX
CLCL
t
CLC H
t
IVCH
Parameter
Clock Frequency
Clock Period
Clock Low Pulse Width
Clock High Pulse Width
Data Input to Clock High Setup Time
Data Input Hold Time After Clock High
Data Output Valid After Clock Low Time
t
CLCL
Serial Programming Characteristics, T
t
CHCL
t
CHIX
Rec eive Mode
A
= -40°C to +85°C, V
Transmit Mode
Min
500
200
200
100
50
Typ
CC
= 5V ±5%
Max
200
8263A–AVR–08/10
2
t
CLO V
Units
MHz
ns
ns
ns
ns
ns
ns