ATTINY85-20MUR Atmel, ATTINY85-20MUR Datasheet - Page 171
ATTINY85-20MUR
Manufacturer Part Number
ATTINY85-20MUR
Description
MCU AVR 8KB FLASH 20MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-20MU.pdf
(236 pages)
Specifications of ATTINY85-20MUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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21.5.2
21.6
2586M–AVR–07/10
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
0XX
101
100
may be below nominal minimum operating voltage for some devices. For devices where
110
111
Min
1.7
2.5
4.1
(1)
(2)
(3)
CC
= V
CC
Typ
1.8
2.7
4.3
BOT
drops to a voltage where correct
BOD Disabled
Min
(1)
0.01
Reserved
1.1
0.6
during the production test. This guar-
A
(1)
= -40°C to +85°C
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
171
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