參數(shù)資料
型號(hào)： ATTINY2313A-SUR
廠商： Atmel
文件頁數(shù)： 132/172頁
文件大?。?/td> 0K
描述： MCU AVR 2KB FLASH 20MHZ 20SOIC
產(chǎn)品培訓(xùn)模塊： tinyAVR Introduction
標(biāo)準(zhǔn)包裝： 1,000
系列： AVR® ATtiny
核心處理器： AVR
芯體尺寸： 8-位
速度： 20MHz
連通性： I²C，SPI，UART/USART
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 18
程序存儲(chǔ)器容量： 2KB（1K x 16）
程序存儲(chǔ)器類型： 閃存
EEPROM 大?。?/td> 128 x 8
RAM 容量： 128 x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 5.5 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 20-SOIC（0.295"，7.50mm 寬）
包裝： 帶卷 (TR)
其它名稱： ATTINY2313A-SUR-ND
62
8246B–AVR–09/11
ATtiny2313A/4313
10.2.1
Alternate Functions of Port A
The Port A pins with alternate function are shown in Table 10-3.
Port A, Bit 0 – XTAL1/CLKI/PCINT8
XTAL1: Chip Clock Oscillator pin 1. Used for all chip clock sources except internal
calibratable RC oscillator. When used as a clock pin, the pin can not be used as an I/O pin.
When using internal calibratable RC Oscillator as a chip clock source, PA0 serves as an
ordinary I/O pin.
CLKI: Clock Input from an external clock source, see “External Clock” on page 27.
PCINT8: Pin Change Interrupt source 8. The PA0 pin can serve as an external interrupt
source for pin change interrupt 1.
Port A, Bit 1 – XTAL2/PCINT9
XTAL2: Chip Clock Oscillator pin 2. Used as clock pin for all chip clock sources except
internal calibratable RC Oscillator and external clock. When used as a clock pin, the pin can
not be used as an I/O pin. When using internal calibratable RC Oscillator or External clock as
a Chip clock sources, PA1 serves as an ordinary I/O pin.
PCINT9: Pin Change Interrupt source 9. The PA1 pin can serve as an external interrupt
source for pin change interrupt 1.
Port A, Bit 2 – RESET/dW/PCINT10
RESET: External Reset input is active low and enabled by unprogramming (“1”) the
RSTDISBL Fuse. Pullup is activated and output driver and digital input are deactivated when
the pin is used as the RESET pin.
dW: When the debugWIRE Enable (DWEN) Fuse is programmed and Lock bits are
unprogrammed, the debugWIRE system within the target device is activated. The RESET
port pin is configured as a wire-AND (open-drain) bi-directional I/O pin with pull-up enabled
and becomes the communication gateway between target and emulator.
PCINT10: Pin Change Interrupt source 10. The PA2 pin can serve as an external interrupt
source for pin change interrupt 1.
Table 10-3.
Port A Pins Alternate Functions
Port Pin
Alternate Function
PA0
XTAL1: Crystal Oscillator Input
CLKI:
External Clock Input
PCINT8: Pin Change Interrupt 1, Source 8
PA1
XTAL2: Crystal Oscillator Output
PCINT9: Pin Change Interrupt 1, Source 9
PA2
RESET: Reset pin
dW:
debugWire I/O
PCINT10:Pin Change Interrupt 1, Source 10
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