ATTINY40-MMHR Atmel, ATTINY40-MMHR Datasheet - Page 59
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ATTINY40-MMHR
Manufacturer Part Number
ATTINY40-MMHR
Description
MCU AVR 4KB FLASH 12MHZ 3X3 QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY40-MMHR.pdf
(216 pages)
Specifications of ATTINY40-MMHR
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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10.3.3
8263A–AVR–08/10
Alternate Functions of Port C
The Port C pins with alternate function are shown in
Table 10-10. Port A Pins Alternate Functions
• Port C, Bit 0 – OC0A/PCINT12
• Port C, Bit 1 – SCK/SCL/ICP1/T1/PCINT13
• OC0A: Output Compare Match output. Provided that the pin has been configured as an
• SS: Slave Select Input. Regardless of DDC0, this pin is automatically configured as an input
• PCINT12: Pin Change Interrupt source 12. The PC0 pin can serve as an external interrupt
• SCK: SPI Clock.
• SCL: TWI Clock. The pin is disconnected from the part and becomes the serial clock for the
• ICP1: Timer/Counter1 Input Capture Pin.
• T1: Timer/Counter1 counter source.
• PCINT13: Pin Change Interrupt source 13. The PC1 pin can serve as an external interrupt
output it serves as an external output for Timer/Counter0 Compare Match A. This pin is also
the output for the timer/counter PWM mode function.
when SPI is enabled as a slave. The data direction of this pin is controlled by DDC0 when
SPI is enabled as a master.
source for pin change interrupt 2.
TWI when TWEN in TWSCRA is set. In this mode of operation, the pin is driven by an open
drain driver with slew rate limitation and a spike filter.
source for pin change interrupt 2.
Port Pin
PC0
PC1
PC2
PC3
PC4
PC5
Alternate Function
OC0A: Timer/Counter0 Compare Match A output
SS :
PCINT12:Pin Change Interrupt 0, Source 12
SCK:
SCL :
ICP1:
T1:
PCINT13:Pin Change Interrupt 0, Source 13
INT0:
CLKO: System Clock Output
MISO:
PCINT14:Pin Change Interrupt 0, Source 14
RESET: Reset pin
PCINT15:Pin Change Interrupt 0, Source 15
MOSI:
SDA:
TPIDATA:Serial Programming Data
PCINT16:Pin Change Interrupt 0, Source 16
CLKI:
TPICLK: Serial Programming Clock
PCINT17:Pin Change Interrupt 0, Source 17
SPI Slave Select
SPI Clock
TWI Clock
Timer/Counter1 Input Capture Pin
Timer/Counter1 Clock Source
External Interrupt 0 Input
SPI Master Input / Slave Output
SPI Master Output / Slave Input
TWI Data Input /Output
External Clock Input
Table
10-10.
59
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