ATtiny85 Atmel Corporation, ATtiny85 Datasheet - Page 171

• Manufacturer Part Number: ATtiny85
• Manufacturer: Atmel Corporation

Specifications of ATtiny85

• Flash (kbytes): 8 Kbytes
• Pin Count: 8
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 3
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 6
• Ext Interrupts: 6
• 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): 0.5
• 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: 5
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

21.5.2
21.6
2586N–AVR–04/11
Brown-Out Detection
Enhanced Power-On Reset
This implementation of power-on reset exists in newer versions of ATtiny25/45/85. The table
below describes the characteristics of this power-on reset and it is valid for the following devices,
only:
Table 21-6.
Note:
Table 21-7.
Note:
• ATtiny25, revision E, and newer
• ATtiny45, revision G, and newer
• ATtiny85, revision C, and newer
Symbol
SR
V
V
POR
POA
ON
BODLEVEL[2:0] Fuses
1. Values are guidelines, only
2. Threshold where device is released from reset when voltage is rising
3. The Power-on Reset will not work unless the supply voltage has been below V
1. V
this is the case, the device is tested down to V
antees that a Brown-out Reset will occur before V
operation of the microcontroller is no longer guaranteed.
Parameter
Release threshold of power-on reset
Activation threshold of power-on reset
Power-On Slope Rate
BOT
Characteristics of Enhanced Power-On Reset. T
BODLEVEL Fuse Coding. T
0XX
may be below nominal minimum operating voltage for some devices. For devices where
111
110
101
100
Min
1.7
2.5
4.1
A
= -40°C to +85°C
(1)
(2)
(3)
CC
= V
CC
Typ
1.8
2.7
4.3
drops to a voltage where correct
BOT
BOD Disabled
Min
(1)
0.01
Reserved
1.1
0.6
during the production test. This guar-
A
(1)
= -40°C to +85°C
ATtiny25/45/85
Typ
1.4
1.3
Max
(1)
2.0
2.9
4.5
(1)
Max
1.6
1.6
POT
(1)
(falling)
Units
Units
V/ms
V
V
V
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