ATTINY28V-1AI Atmel, ATTINY28V-1AI Datasheet - Page 4

• Manufacturer Part Number: ATTINY28V-1AI
• Description: IC AVR MCU 2K 1.2MHZ 1.8V 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY28V-1AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 1.2MHz
• Peripherals: POR, WDT
• Number Of I /o: 11
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Ram Size: -
• Data Converters: -
• Connectivity: -

Register Summary
Notes:
4
Address
$1D
$1C
$0D
$0C
$3F
$3E
$20
$1F
$1E
$1B
$1A
$19
$18
$17
$16
$15
$14
$13
$12
$11
$10
$0F
$0E
$0B
$0A
$09
$08
$07
$06
$05
$04
$03
$02
$01
$00
...
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
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
ATtiny28L/V
should never be written.
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.
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OSCCAL
Name
MCUCS
MODCR
WDTCR
PORTA
PORTD
TCCR0
TCNT0
SREG
DDRD
PACR
ACSR
PINA
PINB
PIND
ICR
IFR
Timer/Counter0 (8-bit)
Oscillator Calibration Register
PORTD7
ONTIM4
PLUPB
Bit 7
PINB7
PIND7
INTF1
DDD7
FOV0
INT1
ACD
-
-
-
-
I
PORTD6
ONTIM3
PIND6
Bit 6
PINB6
INTF0
DDD6
INT0
T
-
-
-
-
-
-
-
PORTD5
ONTIM2
PIND5
Bit 5
PINB5
DDD5
ACO
LLIE
SE
H
-
-
-
-
-
-
PORTD4
ONTIM1
WDTOE
OOM01
PIND4
Bit 4
PINB4
TOIE0
DDD4
TOV0
ACI
SM
S
-
-
-
PORTA3
PORTD3
ONTIM0
OOM00
PIND3
WDRF
Bit 3
PINA3
PINB3
ISC11
DDA3
DDD3
ACIE
WDE
V
-
MCONF2
PORTA2
PORTD2
PA2HC
PIND2
Bit 2
PINB2
ISC10
WDP2
DDD2
CS02
N
-
-
-
-
MCONF1
PORTA1
PORTD1
EXTRF
PIND1
Bit 1
PINA1
PINB1
DDD1
ACIS1
ISC01
WDP1
DDA1
CS01
Z
-
MCONF0
PORTA0
PORTD0
PIND0
Bit 0
PINA0
PINB0
ACIS0
PORF
ISC00
WDP0
DDA0
DDD0
CS00
C
-
1062FS–AVR–07/06
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