ATMEGA161L-4AI Atmel, ATMEGA161L-4AI Datasheet - Page 16
![IC AVR MCU 16K LV 4MZ IND 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA161L-4AI
Manufacturer Part Number
ATMEGA161L-4AI
Description
IC AVR MCU 16K LV 4MZ IND 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA161-8AC.pdf
(159 pages)
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
Available stocks
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Data Indirect with Post-
increment
Constant Addressing Using
the LPM Instruction
Indirect Program Addressing,
IJMP and ICALL
16
ATmega161(L)
Figure 16. Data Indirect Addressing with Post-increment
The X-, Y-, or Z-register is incremented after the operation. Operand address is the con-
tents of the X-, Y-, or Z-register prior to incrementing.
Figure 17. Code Memory Constant Addressing
Constant byte address is specified by the Z-register contents. The 15 MSBs select word
address (0 - 8K), the LSB selects Low byte if cleared (LSB = 0) or High byte if set
(LSB = 1).
Figure 18. Indirect Program Memory Addressing
15
15
15
Z-REGISTER
Z-REGISTER
X, Y, OR Z - REGISTER
1 0
0
1
0
PROGRAM MEMORY
PROGRAM MEMORY
Data Space
1228D–AVR–02/07
$0000
$FFFF
$000
$1FFF
$1FFF
$000
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