ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 164

• Manufacturer Part Number: ATtiny43U
• Manufacturer: Atmel Corporation

Specifications of ATtiny43U

• Flash (kbytes): 4 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 8 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• 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: 4
• 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
• Eeprom (bytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 0.7 to 5.5
• Operating Voltage (vcc): 0.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

20.10 Serial Programming Characteristics
Figure 20-6. Serial Programming Timing
Figure 20-7. Serial Programming Waveforms
Table 20-11. Serial Programming Characteristics, T
164
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
Symbol
SERIAL DATA INPUT
1/t
1/t
t
t
t
t
t
t
t
OVSH
SHOX
CLCL
CLCL
SHSL
SLSH
SLIV
CLCL
CLCL
ATtiny43U
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)
(SCK)
MOSI
MISO
SCK
CC
= 4.5V - 5.5V)
MSB
MSB
CC
t
OVSH
= 4.5V - 5.5V)
t
A
SHSL
= -40°C to 85°C, V
t
SHOX
CC
= 1.8 - 5.5V (Unless Otherwise Noted)
2 t
2 t
2 t
t
t
TBD
Min
250
CLCL
SLSH
125
CLCL
CLCL
CLCL
0
0
t
SLIV
TBD
Typ
Max
TBD
4
8
LSB
LSB
8048B–AVR–03/09
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns