ATMEGA161-8PI Atmel, ATMEGA161-8PI Datasheet - Page 103

• Manufacturer Part Number: ATMEGA161-8PI
• Description: IC AVR MCU 16K 8MHZ IND 40-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

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

1228D–AVR–02/07
Figure 66. Port D Schematic Diagram (Pins PD2 and PD3)
Figure 67. Port D Schematic Diagram (Pin PD4)
WP:
WD:
RL:
RP:
RD:
AS2:
WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
ASYNCH SELECT T/C2
PD4
WP:
WD:
RL:
RP:
RD:
n:
m:
MOS
PULL-
UP
WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
2, 3
0, 1
RL
RP
ATmega161(L)
Q
Q
PORTD4
RESET
RESET
DDD4
WD
RD
WP
R
C
R
C
D
D
AS2
T/C2 OSC
AMP INPUT
103