ATTINY2313A-SUR Atmel, ATTINY2313A-SUR Datasheet - Page 62

• Manufacturer Part Number: ATTINY2313A-SUR
• Description: MCU AVR 2KB FLASH 20MHZ 20SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY2313A-SUR

• 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: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -

10.2.2
62
ATtiny2313A/4313
Alternate Functions of Port B
Table 10-4
5 on page
Table 10-4.
Notes:
The Port B pins with alternate function are shown in
Table 10-5.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
1. RSTDISBL is 1 when the fuse is “0” (Programmed).
2. DebugWIRE is enabled when DWEN Fuse is programmed and Lock bits are unprogrammed.
3. EXT_OSC = crystal oscillator or low frequency crystal oscillator is selected as system clock.
4. EXT_CLOCK = external closk is selected as system clock.
Port Pin
59.
PA2/RESET/dW/PCINT10
RSTDISBL
DEBUGWIRE_ENABLE
1
RSTDISBL
DEBUGWIRE_ENABLE
DEBUGWIRE_ENABLE
• debugWire Transmit
RSTDISBL
DEBUGWIRE_ENABLE
0
0
RSTDISBL
DEBUGWIRE_ENABLE
+ PCINT10 • PCIE1
DEBUGWIRE_ENABLE
+ (RSTDISBL
• PCIE1)
dW/PCINT10 Input
relates the alternate functions of Port A to the overriding signals shown in
PB0
PB1
PB2
PB3
Overriding Signals for Alternate Functions in PA2..PA0
Port B Pins Alternate Functions
(1)
(1)
(1)
(1)
+
+
+
+
(1)
• PCINT10
Alternate Function
AIN0:
PCINT0:Pin Change Interrupt 0, Source 0
AIN1:
PCINT1: Pin Change Interrupt 0, Source 1
OC0A:: Timer/Counter0 Compare Match AOutput
PCINT2: Pin Change Interrupt 0, Source 2
OC1A: Timer/Counter1 Compare Match A Output
PCINT3: Pin Change Interrupt 0, Source 3
(2)
(2)
(2)
(2)
(2)
(2)
Analog Comparator, Positive Input
Analog Comparator, Negative Input
EXT_OSC
0
EXT_OSC
0
EXT_OSC
0
0
EXT_OSC
• PCIE1
EXT_OSC
• PCIE1
PCINT9 Input
XTAL2
PA1/XTAL2/PCINT9
(3)
(3)
(3)
(3)
(3)
+ PCINT9
+ PCINT9
Table
10-5.
PA0/XTAL1/PCINT8
EXT_CLOCK
0
EXT_CLOCK
0
EXT_CLOCK
0
0
EXT_CLOCK
+ (PCINT8 • PCIE1)
(EXT_CLOCK
(EXT_CLOCK
PCINT8 • PCIE1)
CLKI/PCINT8 Input
XTAL1
(4)
(4)
(4)
(4)
(4)
(4)
+ EXT_OSC
+ EXT_OSC
+ EXT_OSC
+ EXT_OSC
• PWR_DOWN) +
• EXT_OSC
8246A–AVR–11/09
Figure 10-
(3)
(3)
(3)
(3)
(3)
•