ATTINY44-15SSZ Atmel, ATTINY44-15SSZ Datasheet - Page 68
![IC MCU AVR 4K FLASH 15MHZ 14SOIC](/photos/7/39/73946/313-14-soic_sml.jpg)
ATTINY44-15SSZ
Manufacturer Part Number
ATTINY44-15SSZ
Description
IC MCU AVR 4K FLASH 15MHZ 14SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY44-15SSZ.pdf
(225 pages)
Specifications of ATTINY44-15SSZ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Processor Series
ATTINY4x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SPI, UART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / Rohs Status
Details
Other names
Q3447517
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY44-15SSZ
Manufacturer:
ATMEL
Quantity:
350
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12.3.2
68
Atmel ATtiny24/44/84 [Preliminary]
Alternate Functions of Port B
The Port B pins with alternate function are shown in
Table 12-7.
• Port B, Bit 0 – XTAL1/PCINT8
XTAL1: Chip clock oscillator pin 1. Used for all chip clock sources except the internal calibrat-
able RC oscillator. When used as a clock pin, the pin cannot be used as an I/O pin. When
using internal calibratable RC oscillator as a chip clock source, PB0 serves as an ordinary I/O
pin.
PCINT8: Pin change interrupt source 8. The PB0 pin can serve as an external interrupt source
for pin change interrupt 1.
• Port B, Bit 1 – XTAL2/PCINT9
XTAL2: Chip clock oscillator pin 2. Used as clock pin for all chip clock sources except the
internal calibratable RC oscillator and external clock. When used as a clock pin, the pin cannot
be used as an I/O pin. When using internal calibratable RC oscillator or external clock as a
chip clock sources, PB1 serves as an ordinary I/O pin.
PCINT9: Pin change interrupt source 9. The PB1 pin can serve as an external interrupt source
for pin change interrupt 1.
• Port B, Bit 2 – INT0/OC0A/CKOUT/PCINT10
INT0: External interrupt request 0.
OC0A: Output compare match output: The PB2 pin can serve as an external output for the
timer/counter 0 compare match A. The PB2 pin has to be configured as an output (DDB2 set
(one)) to serve this function. The OC0A pin is also the output pin for the PWM mode timer
function.
CKOUT - System clock output: The system clock can be output on the PB2 pin. The system
clock will be output if the CKOUT fuse is programmed, regardless of the PORTB2 and DDB2
settings. It will also be output during reset.
PCINT10: Pin change interrupt source 10. The PB2 pin can serve as an external interrupt
source for pin change interrupt 1.
Port Pin
PB0
PB1
PB3
PB2
Port B Pins Alternate Functions
Alternate Function
XTAL1: Crystal Oscillator Input.
PCINT8: Pin change interrupt 1 source 8.
XTAL2: Crystal Oscillator Output.
PCINT9: Pin change interrupt 1 source 9.
INT0:
OC0A: Timer/Counter0 Compare Match A output.
CKOUT: System clock output.
PCINT10:Pin change interrupt 1 source 10.
RESET: Reset pin.
dW:
PCINT11:Pin change interrupt 1 source 11.
External Interrupt 0 Input.
debugWire I/O.
Table 12-7 on page
68.
7701E–AVR–02/11
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