ATMEGA161-8PI Atmel, ATMEGA161-8PI Datasheet - Page 90
![IC AVR MCU 16K 8MHZ IND 40-DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA161-8PI
Manufacturer Part Number
ATMEGA161-8PI
Description
IC AVR MCU 16K 8MHZ IND 40-DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA161-8AC.pdf
(159 pages)
Specifications of ATMEGA161-8PI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
4 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Other names
ATMEGA1618PI
- Current page: 90 of 159
- Download datasheet (2Mb)
Port A Schematics
90
ATmega161(L)
Port A pins are tri-stated when a reset condition becomes active, even if the clock is not
running.
Table 29. DDAn Effects on Port A Pins
Note:
Note that all port pins are synchronized. The synchronization latch is, however, not
shown in the figure.
Figure 55. Port A Schematic Diagrams (Pins PA0 - PA7)
DDAn
0
0
1
1
1. n: 7,6…0, pin number
PORTAn
0
1
0
1
Output
Output
Input
Input
I/O
Pull-up
Yes
No
No
No
(1)
Comment
Tri-state (high-Z)
PAn will source current if ext. pulled low.
Push-pull Zero Output
Push-pull One Output
1228D–AVR–02/07
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