ATtiny28L

Manufacturer Part NumberATtiny28L
ManufacturerAtmel Corporation
ATtiny28L datasheets
 

Specifications of ATtiny28L

Flash (kbytes)2 KbytesPin Count28
Max. Operating Frequency4 MHzCpu8-bit AVR
Hardware Qtouch AcquisitionNoMax I/o Pins11
Ext Interrupts10Usb SpeedNo
Usb InterfaceNoGraphic LcdNo
Video DecoderNoCamera InterfaceNo
Analog Comparators1Resistive Touch ScreenNo
Temp. SensorNoCrypto EngineNo
Sram (kbytes)0.03Self Program MemoryNO
Dram MemoryNoNand InterfaceNo
PicopowerNoTemp. Range (deg C)-40 to 85
I/o Supply Class1.8 to 5.5Operating Voltage (vcc)1.8 to 5.5
FpuNoMpu / Mmuno / no
Timers132khz RtcNo
Calibrated Rc OscillatorYes  
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External Clock Drive Waveforms
Figure 41. External Clock
VIH1
VIL1
External Clock Drive
Symbol
Parameter
1/t
Oscillator Frequency
CLCL
t
Clock Period
CLCL
t
High Time
CHCX
t
Low Time
CLCX
t
Rise Time
CLCH
t
Fall Time
CHCL
Table 25. External RC Oscillator, Typical Frequencies
R [kΩ]
100.0
31.5
6.5
ATtiny28L/V
56
V
= 1.8V to 2.7V
V
CC
CC
Min
Max
Min
0.0
1.2
0.0
833.0
250.0
333.0
100.0
333.0
100.0
1.6
1.6
:
C [pF]
70.0
20.0
20.0
Note:
R should be in the range 3 - 100 kΩ, and C should be at least 20 pF.
= 2.7V to 4.0V
V
= 4.0V to 5.5V
CC
Max
Min
Max
4.0
0.0
250.0
100.0
100.0
1.6
1.6
f
100.0 kHz
1.0 MHz
4.0 MHz
Units
4.0
MHz
ns
ns
ns
0.5
µs
0.5
µs
1062F–AVR–07/06