ATTINY44V-10SSU Atmel, ATTINY44V-10SSU Datasheet - Page 67

• Manufacturer Part Number: ATTINY44V-10SSU
• Description: IC MCU AVR 4K FLASH 10MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44V-10SSU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Package: 14SOIC
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 10 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 12
• Interface Type: SPI/USI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 2
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.3
10.3.1
10.3.2
10.3.3
8006K–AVR–10/10
Register Description
MCUCR – MCU Control Register
PORTA – Port A Data Register
DDRA – Port A Data Direction Register
Table 10-9.
1.
2.
• Bit 6 – PUD: Pull-up Disable
When this bit is written to one, the pull-ups in the I/O ports are disabled even if the DDxn and
PORTxn Registers are configured to enable the pull-ups ({DDxn, PORTxn} = 0b01). See
figuring the Pin” on page 55
Bit
Read/Write
Initial Value
Bit
0x1B (0x3B)
Read/Write
Initial Value
Bit
0x1A (0x3A)
Read/Write
Initial Value
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
EXT_OSC = crystal oscillator or low frequency crystal oscillator is selected as system clock.
EXT_CLOCK = external clock is selected as system clock.
PB1/XTAL2/PCINT9
EXT_OSC
0
EXT_OSC
0
EXT_OSC
0
0
EXT_OSC
PCINT9 • PCIE1
EXT_OSC
PCINT9 Input
XTAL2
PORTA7
BODS
Overriding Signals for Alternate Functions in PB1:PB0
R/W
DDA7
R/W
R/W
7
0
7
0
7
0
(1)
(1)
(1)
(1)
(1)
PORTA6
+
• PCINT9 • PCIE1
DDA6
PUD
R/W
R/W
R/W
6
0
6
0
6
0
for more details about this feature.
PORTA5
DDA5
R/W
R/W
R/W
5
0
SE
5
0
5
0
PORTA4
DDA4
R/W
R/W
4
0
4
0
SM1
R/W
4
0
PB0/XTAL1/PCINT8
EXT_CLOCK
0
EXT_CLOCK
0
EXT_CLOCK
0
0
EXT_CLOCK
(PCINT8 • PCIE1)
( EXT_CLOCK
(EXT_CLOCK
CLOCK/PCINT8 Input
XTAL1
PORTA3
DDA3
R/W
R/W
3
0
3
0
SM0
R/W
3
0
(2)
(2)
(2)
(2)
(2)
(2)
PORTA2
DDA2
+ EXT_OSC
+ EXT_OSC
+ EXT_OSC
+ EXT_OSC
R/W
BODSE
R/W
• EXT_OSC
• PWR_DOWN ) +
2
0
2
0
R/W
2
0
ATtiny24/44/84
PORTA1
DDA1
R/W
ISC01
R/W
1
0
1
0
(1)
(1)
(1)
(1)
R
1
0
(1)
+
• PCINT8 • PCIE1)
PORTA0
DDA0
ISC00
R/W
R/W
R
0
0
0
0
0
0
MCUCR
PORTA
DDRA
“Con-
67