ATtiny24A Atmel Corporation, ATtiny24A Datasheet - Page 5

• Manufacturer Part Number: ATtiny24A
• Manufacturer: Atmel Corporation

Specifications of ATtiny24A

• Flash (kbytes): 2 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 12
• Ext Interrupts: 12
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

2.4
2.4.1
Table 2-2.
2.5
2.5.1
2.6
Table 2-4.
Note:
8183D-Appendix A–AVR–08/11
Calibration
Method
Factory
Calibration
User
Calibration
Symbol
V
I
t
t
LAC
APD
DPD
AIO
Clock Characteristics
System and Reset Characteristics
Analog Comparator Characteristics
All parameters are based on simulation results and are not tested in production
Accuracy of Calibrated Internal Oscillator
Power-On Reset
Parameter
Input Offset Voltage
Input Leakage Current
Analog Propagation Delay
(from saturation to slight overdrive)
Analog Propagation Delay
(large step change)
Digital Propagation Delay
Calibration Accuracy of Internal RC Oscillator
Analog Comparator Characteristics, T
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
Note:
Table 2-3.
Notes:
7.3 – 8.1 MHz
Symbol
SR
8.0 MHz
V
V
POR
POA
ON
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
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
Parameter
Release threshold of power-on reset
Activation threshold of power-on reset
Power-On Slope Rate
Characteristics of Enhanced Power-On Reset. T
Fixed voltage within:
A
1.8V – 5.5V
= -40
Condition
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
V
3V
CC
= 5V, V
= 5V, V
= 2.7V
= 4.0V
= 2.7V
= 4.0V
= 1.8V - 5.5
°
C to +105
IN
IN
= V
= V
CC
CC
°
Figure 3-46 on page
C
(2)
within: -40°C to 105°C
/ 2
/ 2
(3)
Fixed temperature
Temperature
25°C
Min
-50
Min
0.01
1.1
0.6
A
(1)
= -40 to +105°C
32.
ATtiny24A/44A
< 10
Typ
750
500
100
75
Accuracy at given voltage
Typ
1
1.4
1.3
(1)
& temperature
Max
Max
±10%
40
50
2
±1%
1.7
1.7
POA
(1)
(1)
Units
CLK
Units
mV
V/ms
nA
ns
V
V
5