ATTINY25V-10MUR Atmel, ATTINY25V-10MUR Datasheet - Page 62
ATTINY25V-10MUR
Manufacturer Part Number
ATTINY25V-10MUR
Description
MCU AVR 2KB FLASH 10MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-20MU.pdf
(236 pages)
Specifications of ATTINY25V-10MUR
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
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
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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10.3.1
62
ATtiny25/45/85
Alternate Functions of Port B
The following subsections shortly describe the alternate functions for each port, and relate the
overriding signals to the alternate function. Refer to the alternate function description for further
details.
The Port B pins with alternate function are shown in
Table 10-3.
• Port B, Bit 5 – RESET/dW/ADC0/PCINT5
• RESET: External Reset input is active low and enabled by unprogramming (“1”) the
• dW: When the debugWIRE Enable (DWEN) Fuse is programmed and Lock bits are
RSTDISBL Fuse. Pullup is activated and output driver and digital input are deactivated when
the pin is used as the RESET pin.
unprogrammed, the debugWIRE system within the target device is activated. The RESET
Port Pin
PB5
PB4
PB3
PB2
PB1
PB0
Port B Pins Alternate Functions
Alternate Function
RESET: Reset Pin
dW:
ADC0:
PCINT5: Pin Change Interrupt, Source 5
XTAL2: Crystal Oscillator Output
CLKO: System Clock Output
ADC2:
OC1B: Timer/Counter1 Compare Match B Output
PCINT4: Pin Change Interrupt 0, Source 4
XTAL1: Crystal Oscillator Input
CLKI:
ADC3:
OC1B: Complementary Timer/Counter1 Compare Match B Output
PCINT3: Pin Change Interrupt 0, Source 3
SCK:
ADC1:
T0:
USCK: USI Clock (Three Wire Mode)
SCL :
INT0:
PCINT2: Pin Change Interrupt 0, Source 2
MISO:
AIN1:
OC0B: Timer/Counter0 Compare Match B Output
OC1A: Timer/Counter1 Compare Match A Output
DO:
PCINT1:Pin Change Interrupt 0, Source 1
MOSI:: SPI Master Data Output / Slave Data Input
AIN0:
OC0A: Timer/Counter0 Compare Match A output
OC1A: Complementary Timer/Counter1 Compare Match A Output
DI:
SDA:
AREF:
PCINT0: Pin Change Interrupt 0, Source 0
debugWIRE I/O
ADC Input Channel 0
ADC Input Channel 2
External Clock Input
ADC Input Channel 3
Serial Clock Input
ADC Input Channel 1
Timer/Counter0 Clock Source
USI Clock (Two Wire Mode)
External Interrupt 0 Input
SPI Master Data Input / Slave Data Output
Analog Comparator, Negative Input
USI Data Output (Three Wire Mode)
Analog Comparator, Positive Input
USI Data Input (Three Wire Mode)
USI Data Input (Two Wire Mode)
External Analog Reference
Table
10-3.
2586M–AVR–07/10
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