ATTINY9-MAHR Atmel, ATTINY9-MAHR Datasheet - Page 119

• Manufacturer Part Number: ATTINY9-MAHR
• Description: IC MCU AVR 1K FLASH 8UDFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY9-MAHR

• Package / Case: 8-UDFN Exposed Pad
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 12MHz
• Number Of I /o: 4
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32 x 8
• Program Memory Size: 1KB (1K x 8)
• Oscillator Type: Internal
• Peripherals: POR, PWM, WDT
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

16.4
16.4.1
Table 16-2.
16.4.2
Table 16-3.
8127D–AVR–02/10
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
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 RC Oscillator
External Clock Drive Characteristics
Fixed frequency within:
Target Frequency
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
Notes:
Figure 16-2. External Clock Drive Waveform
7.3 – 8.1 MHz
8.0 MHz
143.
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
V
IL1
V
IH1
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 17-39 on page 143
Fixed temp. within:
Temperature
-40°C – 85°C
V
Min.
25°C
125
CC
50
50
0
= 2.7 - 5.5V
Max.
8
1
1
2
ATtiny4/5/9/10
Accuracy at given Voltage
V
Min.
CC
83
33
33
0
& Temperature
and
= 4.5 - 5.5V
Figure 17-40 on
±10%
±1%
Max.
0.6
0.6
12
2
(1)
Units
MHz
ns
ns
ns
μs
μs
%
119