ATTINY85-20SU Atmel, ATTINY85-20SU Datasheet - Page 169
![IC AVR MCU 8K 20MHZ 8SOIC](/photos/6/50/65032/453-8-soic_sml.jpg)
ATTINY85-20SU
Manufacturer Part Number
ATTINY85-20SU
Description
IC AVR MCU 8K 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY85-20SU
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
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
4-ch x 10-bit
For Use With
ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIPATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY85-20SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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21.4
21.4.1
Table 21-2.
21.4.2
Figure 21-3. External Clock Drive Waveforms
21.4.3
Table 21-3.
2586M–AVR–07/10
Calibration
Method
Factory
Calibration
User
Calibration
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
Clock Characteristics
Calibrated Internal RC Oscillator Accuracy
External Clock Drive
External Clock Drive
Parameter
Clock Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one clock cycle to the next
Calibration Accuracy of Internal RC Oscillator
External Clock Drive
Fixed frequency within:
Target Frequency
It is possible to manually calibrate the internal oscillator to be more accurate than default factory
calibration. Please note that the oscillator frequency depends on temperature and voltage. Volt-
age and temperature characteristics can be found in
41 on page
Notes:
8.0 MHz
6 – 8 MHz
V
IL1
V
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
2. ATtiny25/V, only: 6.4 MHz in ATtiny15 Compatibility Mode.
3. Voltage range for ATtiny25V/45V/85V.
4. Voltage range for ATtiny25/45/85.
IH1
(2)
198.
Fixed voltage within:
1.8V - 5.5V
2.7V - 5.5V
V
3V
CC
V
Min.
250
100
100
(3)
(4)
CC
0
= 1.8 - 5.5V
Max.
2.0
2.0
4
2
Fixed temperature
-40°C to +85°C
Temperature
V
within:
Min.
Figure 22-40 on page 198
25°C
100
CC
40
40
0
= 2.7 - 5.5V
Max.
1.6
1.6
10
2
Accuracy at given Voltage
V
Min.
CC
50
20
20
0
& Temperature
= 4.5 - 5.5V
±10%
±1%
Max.
and
0.5
0.5
20
2
Figure 22-
(1)
Units
MHz
ns
ns
ns
µs
µs
%
169
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