ATmega8535 Atmel Corporation, ATmega8535 Datasheet - Page 260

• Manufacturer Part Number: ATmega8535
• Manufacturer: Atmel Corporation

Specifications of ATmega8535

• Flash (kbytes): 8 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 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: No
• 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: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 127. Two-wire Serial Bus Timing
260
SCL
SDA
4. f
5. This requirement applies to all ATmega8535 Two-wire Serial Interface operation. Other devices connected to the Two-wire
6. The actual low period generated by the ATmega8535 Two-wire Serial Interface is (1/f
7. The actual low period generated by the ATmega8535 Two-wire Serial Interface is (1/f
t
ATmega8535(L)
SU;STA
Serial Bus need only obey the general f
than 6 MHz for the low time requirement to be strictly met at f
ment will not be strictly met for f
communicate at full speed (400 kHz) with other ATmega8535 devices, as well as any other device with a proper t
tance margin.
CK
= CPU clock frequency.
t
HD;STA
t
t
of
LOW
SCL
> 308 kHz when f
SCL
t
HIGH
requirement.
t
HD;DAT
CK
t
LOW
= 8 MHz. Still, ATmega8535 devices connected to the bus may
SCL
= 100 kHz.
t
SU;DAT
SCL
SCL
- 2/f
- 2/f
CK
CK
), thus the low time require-
t
), thus f
SU;STO
t
r
CK
must be greater
2502K–AVR–10/06
LOW
t
BUF
accep-