ATtiny25 Atmel Corporation, ATtiny25 Datasheet - Page 6

• 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

1.5
Table 1-5.
Note:
6
Symbol
AREF
R
R
V
V
REF
INT
AIN
IN
ADC Characteristics – Preliminary
1. Values are guidelines only.
ATtiny25
External Reference Voltage
Parameter
Resolution
Absolute accuracy
(Including INL, DNL, and
Quantization, Gain and
Offset errors)
Integral Non-linearity (INL)
(Accuracy after offset and gain
calibration)
Differential Non-linearity (DNL)
Gain Error
Offset Error
Conversion Time
Clock Frequency
Input Voltage
Input Bandwidth
Internal Voltage Reference
Internal 2.56V Reference
Analog Input Resistance
ADC Output
ADC Characteristics, Single Ended Channels. T
(1)
V
ADC clock = 200 kHz
V
ADC clock = 1 MHz
V
ADC clock = 200 kHz
Noise Reduction Mode
V
ADC clock = 1 MHz
Noise Reduction Mode
V
ADC clock = 200 kHz
V
ADC clock = 200 kHz
V
ADC clock = 200 kHz
V
ADC clock = 200 kHz
Free Running Conversion
V
REF
REF
REF
REF
REF
REF
REF
REF
CC
> 3.0V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
Condition
CC
CC
CC
CC
CC
CC
CC
CC
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
A
= -40°C to +105°C
GND
Min
2.0
1.0
2.3
14
50
0
38.4
2.56
Typ
100
1.5
2.5
0.5
2.5
1.5
1.1
32
2
3
1
2586N–Appendix A–AVR–08/11
1000
V
1023
Max
V
280
1.2
2.8
10
REF
CC
Units
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
Bits
kHz
kHz
MΩ
kΩ
µs
V
V
V
V