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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Port E Data Register – PORTE
Port E Data Direction Register
– DDRE
Port E Input Pins Address –
PINE
Port E as General Digital I/O
Alternate Functions of Port E
0945I–AVR–02/07
Bit
7
6
5
$03 ($23)
PORTE7
PORTE6
PORTE5
Read/Write
R/W
R/W
R/W
Initial Value
0
0
0
Bit
7
6
5
$02 ($22)
DDE7
DDE6
DDE5
Read/Write
R/W
R/W
R/W
Initial Value
0
0
0
Bit
7
6
5
$01 ($21)
PINE7
PINE6
PINE5
Read/Write
R
R
R
Initial Value
N/A
N/A
N/A
The Port E Input Pins address (PINE) is not a register; this address enables access to
the physical value on each Port E pin. When reading PORTE, the Port E Data Latch is
read and when reading PINE, the logical values present on the pins are read.
PEn, general I/O pin: The DDEn bit in the DDRE Register selects the direction of this
pin. If DDEn is set (one), PEn is configured as an output pin. If DDEn is cleared (zero),
PEn is configured as an input pin. If PEn is set (one) when configured as an input pin,
the MOS pull-up resistor is activated. To switch the pull-up resistor off, the PEn has to
be cleared (zero) or the pin has to be configured as an output pin.The port pins are tri-
stated when a reset condition becomes active, even if the clock is not running.
Table 34. DDEn Bits on Port E Pins
DDEn
PORTEn
I/O
0
0
Input
0
1
Input
1
0
Output
1
1
Output
Note:
n: 7,6...0, pin number
The alternate pin functions of Port E are:
• PDI/RXD – Port E, Bit 0
PDI, Serial Programming Data Input. During Serial Program downloading, this pin is
used as data input line for the ATmega103(L).
RXD, UART Receive Pin. Receive Data (Data input pin for the UART). When the UART
Receiver is enabled, this pin is configured as an input regardless of the value of DDRD0.
When the UART forces this pin to be an input, a logical “1” in PORTD0 will turn on the
internal pull-up.
• PDO/TXD – Port E, Bit 1
PDO, Serial Programming Data Output. During Serial Program downloading, this pin is
used as data output line for the ATmega103(L).
ATmega103(L)
4
3
2
1
PORTE4
PORTE3
PORTE2
PORTE1
R/W
R/W
R/W
R/W
0
0
0
0
4
3
2
1
DDE4
DDE3
DDE2
DDE1
R/W
R/W
R/W
R/W
0
0
0
0
4
3
2
1
PINE4
PINE3
PINE2
PINE1
R
R
R
R
N/A
N/A
N/A
N/A
Pull-up
Comment
No
Tri-state (high-Z)
Yes
PDn will source current if ext. pulled low.
No
Push-pull Zero Output
No
Push-pull One Output
0
PORTE0
PORTE
R/W
0
0
DDE0
DDRE
R/W
0
0
PINE0
PINE
R
N/A
99