ATTINY861A-XUR Atmel, ATTINY861A-XUR Datasheet - Page 186
ATTINY861A-XUR
Manufacturer Part Number
ATTINY861A-XUR
Description
MCU AVR 8KB FLASH 20MHZ 20TSSOP
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY461A-MU.pdf
(292 pages)
Specifications of ATTINY861A-XUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
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)
1.8 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY861A-XUR
Manufacturer:
IDT
Quantity:
1 300
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19.4
19.4.1
Table 19-2.
Notes:
19.4.2
Figure 19-2. External Clock Drive Waveforms
Table 19-3.
186
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
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
ATtiny261A/461A/861A
Accuracy of Calibrated Internal Oscillator
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 Oscillator
External Clock Drive Characteristics
V
IL1
V
It is possible to manually calibrate the internal oscillator to be more accurate than default factory
calibration. Note that the oscillator frequency depends on temperature and voltage. Voltage and
temperature characteristics can be found in
page
Target Frequency
IH1
Fixed frequency
7.3 - 8.1 MHz
219.
8.0 MHz
within:
Fixed voltage within:
1.8V - 5.5V
V
3V
CC
V
Min.
250
100
100
CC
0
= 1.8 - 5.5V
Max.
2.0
2.0
4
2
Figure 20-49 on page 219
Fixed temperature
Temperature
-40°C - 85°C
within:
25°C
V
Min.
100
CC
40
40
0
= 2.7 - 5.5V
Max.
1.6
1.6
10
2
voltage & temperature
V
Min.
CC
Accuracy at given
50
20
20
0
and
= 4.5 - 5.5V
±10%
Figure 20-50 on
±1%
Max.
0.5
0.5
20
8197B–AVR–01/10
2
Units
MHz
ns
ns
ns
μs
μs
%
(1)
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