ATmega8535 Atmel Corporation, ATmega8535 Datasheet - Page 37

• 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

2502K–AVR–10/06
Figure 15. Reset Logic
Table 15. Reset Characteristics
Notes:
Symbol
V
BODLEVEL
V
V
V
t
t
BOD
RST
HYST
POT
RST
BOT
BODEN
1. Values are guidelines only.
2. The Power-on Reset will not work unless the supply voltage has been below V
(falling).
Parameter
Power-on Reset Threshold
Voltage (rising)
Power-on Reset Threshold
Voltage (falling)
Voltage
Minimum pulse width on
RESET Pin
Brown-out Reset Threshold
Voltage
Minimum low voltage period
for Brown-out Detection
Brown-out Detector
hysteresis
RESET Pin Threshold
Pull-up Resistor
(3)
Spike
Filter
(2)
CKSEL[3:0]
Reset Circuit
Reset Circuit
Reset Circuit
SUT[1:0]
Brown-out
Watchdog
Watchdog
Power-on
Oscillator
Generator
Timer
Clock
BODLEVEL = 1
BODLEVEL = 0
BODLEVEL = 1
BODLEVEL = 0
Condition
CK
MCU Control and Status
Register (MCUCSR)
DATA BUS
Delay Counters
ATmega8535(L)
Min
0.2
2.5
3.6
(1)
Typ
130
1.4
1.3
2.7
4.0
2
2
(1)
TIMEOUT
Max
2.3
2.3
0.9
1.5
2.9
4.2
(1)
Units
mV
µs
µs
µs
POT
V
V
V
V
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