ATMEGA161L-4AI Atmel, ATMEGA161L-4AI Datasheet - Page 102
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
Company
Part Number
Manufacturer
Quantity
Price
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Port D Schematics
102
ATmega161(L)
Note that all port pins are synchronized. The synchronization latches are, however, not
shown in the figures.
Figure 64. Port D Schematic Diagram (Pin PD0)
Figure 65. Port D Schematic Diagram (Pin PD1)
PD0
WP:
WD:
RL:
RP:
RD:
RXD0:
RXEN0:
WP:
WD:
RL:
RP:
RD:
TXD0:
TXEN0:
PD1
MOS
PULL-
UP
MOS
PULL-
UP
WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
UART0 TRANSMIT DATA
UART0 TRANSMIT ENABLE
WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
UART0 RECEIVE DATA
UART0 RECEIVE ENABLE
RP
RL
RL
RP
Q
Q
PORTD1
RESET
RESET
DDD1
Q
Q
WD
WP
PORTD0
RD
RESET
RESET
R
C
R
C
DDD0
WD
WP
RD
C
C
D
D
D
D
TXEN0
TXD0
RXEN0
RXD0
1228D–AVR–02/07
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