ATMEGA161L-4AI Atmel, ATMEGA161L-4AI Datasheet - Page 9

• Manufacturer Part Number: ATMEGA161L-4AI
• Description: IC AVR MCU 16K LV 4MZ IND 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA161L-4AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: ATMEGA161L4AI

1228D–AVR–02/07
Figure 5. Memory Maps
A flexible interrupt module has its control registers in the I/O space with an additional
global interrupt enable bit in the Status Register. All the different interrupts have a sepa-
rate Interrupt Vector in the Interrupt Vector table at the beginning of the Program
memory. The different interrupts have priority in accordance with their Interrupt Vector
position. The lower the Interrupt Vector address, the higher the priority.
Program Memory
Program Flash
(8K x 16)
$000
$1FFF
Working Registers
32 Gen. Purpose
External SRAM
64 I/O Registers
Internal SRAM
Data Memory
(0 - 63K x 8)
(1024 x 8)
ATmega161(L)
$045F
$0460
$0000
$001F
$0020
$005F
$0060
$FFFF
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