IC MCU 128K 6MHZ A/D IT 64TQFP

ATMEGA103-6AI

Manufacturer Part NumberATMEGA103-6AI
DescriptionIC MCU 128K 6MHZ A/D IT 64TQFP
ManufacturerAtmel
SeriesAVR® ATmega
ATMEGA103-6AI datasheets
 

Specifications of ATMEGA103-6AI

Core ProcessorAVRCore Size8-Bit
Speed6MHzConnectivitySPI, UART/USART
PeripheralsPOR, PWM, WDTNumber Of I /o32
Program Memory Size128KB (64K x 16)Program Memory TypeFLASH
Eeprom Size4K x 8Ram Size4K x 8
Voltage - Supply (vcc/vdd)4 V ~ 5.5 VData ConvertersA/D 8x10b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case64-TQFP, 64-VQFPFor Use WithATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
Lead Free Status / RoHS StatusContains lead / RoHS non-compliant  
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8-bit Timer/Counters
T/C0 and T/C2
0945I–AVR–02/07
The clock source for Timer/Counter0 prescaler is named PCK0. PCK0 is by default con-
nected to the main system clock CK. Observe that CPU clock frequency can be lower
than the XTAL frequency if the XTAL divider is enabled. By setting the AS0 bit in ASSR,
Timer/Counter0 prescaler is asynchronously clocked from the TOSC1 pin. This enables
use of Timer/Counter0 as a Real Time Clock (RTC). A crystal can be connected
between the TOSC1 and TOSC2 pins to serve as an independent clock source for
Timer/Counter0. This Oscillator is optimized for use with a 32.768 kHz crystal.
Figure 30 shows the block diagram for Timer/Counter0. Figure 31 shows the block dia-
gram for Timer/Counter2.
Figure 30. Timer/Counter0 Block Diagram
8-BIT DATA BUS
8-BIT ASYNCH T/C0 DATA BUS
TIMER INT. MASK
REGISTER (TIMSK)
7
0
TIMER/COUNTER0
(TCNT0)
7
0
8-BIT COMPARATOR
7
0
OUTPUT COMPARE
REGISTER0 (OCR0)
CK
TCK0
ATmega103(L)
T/C0 OVER-
T/C0 COMPARE
FLOW IRQ
MATCH IRQ
TIMER INT. FLAG
T/C0 CONTROL
REGISTER (TIFR)
REGISTER (TCCR0)
T/C CLEAR
T/C CLK SOURCE
CONTROL
UP/DOWN
LOGIC
ASYNCH. STATUS
REGISTER (ASSR)
SYNCH UNIT
PCK0
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