ATMEGA103L-4AI Atmel, ATMEGA103L-4AI Datasheet - Page 100

• Manufacturer Part Number: ATMEGA103L-4AI
• Description: IC MCU 128K 4MHZ A/D LV 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA103L-4AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TXD, UART Transmit Pin.
• AC+ – Port E, Bit 2
AC+, Analog Comparator Positive Input. This pin is directly connected to the positive
input of the analog comparator.
• AC- – Port E, Bit 3
AC-, Analog Comparator Negative Input. This pin is directly connected to the negative
input of the analog comparator.
• INT4..INT7 – Port E, Bits 4 - 7
INT4..INT7, External Interrupt sources 4 - 7: The PE4 - PE7 pins can serve as external
interrupt sources to the MCU. Interrupts can be triggered by low level or positive or neg-
ative edge on these pins. The internal pull-up MOS resistors can be activated as
described above. See the interrupt description for further details, and how to enable the
sources.
Port E Schematics
Note that all port pins are synchronized. The synchronization latches are, however, not
shown in the figures.
Figure 66. Port E Schematic Diagram (Pin PE0)
ATmega103(L)
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0945I–AVR–02/07