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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Page 42/141

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Timer/Counter0 – TCNT0
Timer/Counter2 – TCNT2
ATmega103(L)
42
In PWM mode, this bit has no effect.
• Bits 2, 1, 0 – CS02, CS01, CS00/CS22, CS21, CS20: Clock Select Bits 2, 1 and 0
The Clock Select2 bits 2, 1 and 0 define the prescaling source of the Timer/Counter.
Table 11. Timer/Counter0 Prescale Select
CS02
CS01
CS00
Description
0
0
0
Timer/Counter0 is stopped.
0
0
1
PCK0
0
1
0
PCK0/8
0
1
1
PCK0/32
1
0
0
PCK0/64
1
0
1
PCK0/128
1
1
0
PCK0/256
1
1
1
PCK0/1024
Table 12. Timer/Counter2 Prescale Select
CS22
CS21
CS20
Description
0
0
0
Timer/Counter2 is stopped.
0
0
1
CK
0
1
0
CK/8
0
1
1
CK/64
1
0
0
CK/256
1
0
1
CK/1024
1
1
0
External Pin PD7(T2), falling edge
1
1
1
External Pin PD7(T2), rising edge
The Stop condition provides a Timer Enable/Disable function. The CK down divided
modes are scaled directly from the CK CPU clock. If the external pin modes are used for
Timer/Counter2, transitions on PD7/(T2) will clock the counter even if the pin is config-
ured as an output. This feature can give the user software control of the counting.
Bit
7
6
5
$32 ($42)
MSB
Read/Write
R/W
R/W
R/W
Initial Value
0
0
0
Bit
7
6
5
$24 ($44)
MSB
Read/Write
R/W
R/W
R/W
Initial Value
0
0
0
4
3
2
1
0
LSB
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
4
3
2
1
0
LSB
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
TCNT0
TCNT2
0945I–AVR–02/07