ATTINY4313-MU Atmel, ATTINY4313-MU Datasheet - Page 64

• Manufacturer Part Number: ATTINY4313-MU
• Description: IC MCU AVR 4K FLASH 20QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY4313-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• 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
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Processor Series: ATtiny
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI, USART, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 2
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

64
ATtiny2313A/4313
• Port B, Bit 5 – DI/SDA/PCINT5
• Port B, Bit 6 – DO/PCINT6
• Port B, Bit 7 – USCK/SCL/PCINT7
Table 10-6
shown in
MISO signal, while MOSI is divided into SPI MSTR OUTPUT and SPI SLAVE INPUT.
• PCINT4: Pin Change Interrupt Source 4. The PB4 pin can serve as an external interrupt
• DI: Three-wire mode Universal Serial Interface Data input. Three-wire mode does not
• PCINT5: Pin Change Interrupt Source 5. The PB5 pin can serve as an external interrupt
• DO: Three-wire mode Universal Serial Interface Data output. Three-wire mode Data output
• PCINT6: Pin Change Interrupt Source 6. The PB6 pin can serve as an external interrupt
• USCK: Three-wire mode Universal Serial Interface Clock.
• SCL: Two-wire mode Serial Clock for USI Two-wire mode.
• PCINT7: Pin Change Interrupt source 7. The PB7 pin can serve as an external interrupt
(one)) to serve this function. The OC1B pin is also the output pin for the PWM mode timer
function.
source for pin change interrupt 0.
override normal port functions, so pin must be configured as an input. SDA: Two-wire mode
Serial Interface Data.
source for pin change interrupt 0.
overrides PORTB6 value and it is driven to the port when data direction bit DDB6 is set (one).
However the PORTB6 bit still controls the pull-up enabling pull-up, if direction is input and
PORTB6 is set (one).
source for pin change interrupt 0.
source for pin change interrupt 0.
Figure 10-5 on page
and
Table 10-7
relate the alternate functions of Port B to the overriding signals
59. SPI MSTR INPUT and SPI SLAVE OUTPUT constitute the
8246A–AVR–11/09