ATTINY48-MMH Atmel, ATTINY48-MMH Datasheet - Page 208
ATTINY48-MMH
Manufacturer Part Number
ATTINY48-MMH
Description
MCU AVR 4KB FLASH 12MHZ 28-VQFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY48-MMH
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
24
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
For Use With
ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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22.3
22.4
22.4.1
Table 22-1.
208
Calibration
Method
Factory Calibration
User Calibration
Speed
Clock Characterizations
ATtiny48/88
Calibrated Internal Oscillator Accuracy
Calibration Accuracy of Internal Oscillator
Fixed frequency within:
The maximum operating frequency of the device is dependent on supply voltage, V
tionship between supply voltage and maximum operating frequency is piecewise linear, as
shown in
4.5V.
Figure 22-1. Maximum Operating Frequency vs. Supply Voltage
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
page
Notes:
Target Frequency
7.3 – 8.1 MHz
247,
8.0 MHz
12 MHz
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
8 MHz
4 MHz
Figure
Figure 23-112
22-1, the Maximum Frequency vs. V
1.8V
Fixed voltage within:
and
1.8V – 5.5V
Figure 23-113 on page
V
3V
CC
2.7V
Fixed temperature within:
-40°C to +85°C
Temperature
Figure 23-55 on page
275.
25°C
CC
curve is linear between 1.8V < V
4.5V
Voltage & Temperature
Accuracy at given
246,
5.5V
±10%
Figure 23-56 on
±1%
8008G–AVR–04/11
CC
. The rela-
CC
(1)
<
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