ATtiny25 Atmel Corporation, ATtiny25 Datasheet - Page 7

• Manufacturer Part Number: ATtiny25
• Manufacturer: Atmel Corporation

Specifications of ATtiny25

• Flash (kbytes): 2 Kbytes
• Pin Count: 8
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 6
• Ext Interrupts: 6
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• 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: No
• Temp. Range (deg C): -40 to 105
• 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: 5
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

Table 1-6.
Note:
2586N–Appendix A–AVR–08/11
V
V
AREF
V
R
R
Symbol
IN
DIFF
INT
REF
AIN
1. Values are guidelines only.
Parameter
Resolution
Absolute accuracy
(Including INL, DNL, and
Quantization, Gain and Offset
Errors)
Integral Non-Linearity (INL)
(Accuracy after Offset and
Gain Calibration)
Gain Error
Offset Error
Conversion Time
Clock Frequency
Input Voltage
Input Differential Voltage
Input Bandwidth
External Reference Voltage
Internal Voltage Reference
Internal 2.56V Reference
Reference Input Resistance
Analog Input Resistance
ADC Conversion Output
ADC Characteristics, Differential Channels (Unipolar Mode). T
(1)
Free Running Conversion
Gain = 1x
Gain = 20x
Gain = 1x
V
ADC clock = 50 - 200 kHz
Gain = 20x
V
ADC clock = 50 - 200 kHz
Gain = 1x
V
ADC clock = 50 - 200 kHz
Gain = 20x
V
ADC clock = 50 - 200 kHz
Gain = 1x
Gain = 20x
Gain = 1x
V
ADC clock = 50 - 200 kHz
Gain = 20x
V
ADC clock = 50 - 200 kHz
V
REF
REF
REF
REF
REF
REF
CC
> 3.0V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
Condition
CC
CC
CC
CC
CC
CC
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
GND
Min
2.0
1.0
2.3
70
50
0
A
= -40°C to +105°C
10.0
20.0
10.0
10.0
15.0
2.56
Typ
100
4.0
3.0
4.0
1.1
32
4
V
V
REF
CC
1023
Max
280
V
200
1.2
2.8
10
10
CC
/Gain
- 1.0
ATtiny25
Units
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
Bits
kHz
kHz
Bits
MΩ
kΩ
µs
V
V
V
V
V
7