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  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
Page 61
62
Page 62
63
Page 63
64
Page 64
65
Page 65
66
Page 66
67
Page 67
68
Page 68
69
Page 69
70
Page 70
71
72
73
74
75
76
77
78
79
80
81
Page 70/81

Download datasheet (664Kb)Embed
PrevNext
Register Summary
Address
Name
Bit 7
$3F
SREG
$3E
Reserved
...
Reserved
$20
Reserved
$1F
Reserved
$1E
Reserved
$1D
Reserved
$1C
Reserved
$1B
PORTA
$1A
PACR
$19
PINA
$18
Reserved
$17
Reserved
$16
PINB
PINB7
$15
Reserved
$14
Reserved
$13
Reserved
$12
PORTD
PORTD7
$11
DDRD
$10
PIND
PIND7
$0F
Reserved
$0E
Reserved
$0D
Reserved
$0C
Reserved
$0B
Reserved
$0A
Reserved
$09
Reserved
$08
ACSR
$07
MCUCS
PLUPB
$06
ICR
$05
IFR
INTF1
$04
TCCR0
$03
TCNT0
Timer/Counter0 (8-bit)
$02
MODCR
ONTIM4
$01
WDTCR
$00
OSCCAL
Oscillator Calibration Register
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
should never be written.
2. Some of the status flags are cleared by writing a logical “1” to them. Note that the CBI and SBI instructions will operate on all
bits in the I/O register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions work
with registers $00 to $1F only.
ATtiny28L/V
70
Bit 6
Bit 5
Bit 4
I
T
H
S
-
-
-
-
-
-
-
-
-
-
-
-
PINB6
PINB5
PINB4
PORTD6
PORTD5
PORTD4
DDD7
DDD6
DDD5
DDD4
PIND6
PIND5
PIND4
ACD
-
ACO
ACI
-
SE
SM
INT1
INT0
LLIE
TOIE0
INTF0
-
TOV0
FOV0
-
-
OOM01
ONTIM1
ONTIM3
ONTIM2
-
-
-
WDTOE
Bit 3
Bit 2
Bit 1
Bit 0
V
N
Z
C
PORTA3
PORTA2
PORTA1
PORTA0
DDA3
PA2HC
DDA1
DDA0
PINA3
-
PINA1
PINA0
PINB3
PINB2
PINB1
PINB0
PORTD3
PORTD2
PORTD1
PORTD0
DDD3
DDD2
DDD1
DDD0
PIND3
PIND2
PIND1
PIND0
ACIE
-
ACIS1
ACIS0
WDRF
-
EXTRF
PORF
ISC11
ISC10
ISC01
ISC00
-
-
-
-
OOM00
CS02
CS01
CS00
ONTIM0
MCONF2
MCONF1
MCONF0
WDE
WDP2
WDP1
WDP0
Page
page 6
page 32
page 32
page 32
page 32
page 33
page 33
page 33
page 44
page 19
page 22
page 23
page 35
page 36
page 43
page 37
page 9
1062F–AVR–07/06