atmega161-4pi ATMEL Corporation, atmega161-4pi Datasheet - Page 95

• Manufacturer Part Number: atmega161-4pi
• Description: 8-bit Microcontroller With 16k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

1228D–AVR–02/07
Figure 57. Port B Schematic Diagram (Pin PB2)
Figure 58. Port B Schematic Diagram (Pin PB3)
WP:
WD:
RL:
RP:
RD:
RXD1:
RXEN1:
AIN0:
WP:
WD:
RL:
RP:
RD:
TXD1:
TXEN1:
AIN1:
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
UART1 RECEIVE DATA
UART1 RECEIVE ENABLE
ANALOG COMPARATOR POSITIVE INPUT
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
UART1 TRANSMIT DATA
UART1 TRANSMIT ENABLE
ANALOG COMPARATOR NEGATIVE INPUT
PB2
PB3
MOS
PULL-
UP
MOS
PULL-
UP
RP
RL
RL
RP
ATmega161(L)
Q
Q
Q
Q
PORTB2
PORTB3
RESET
RESET
RESET
RESET
DDB2
DDB3
RD
WD
WP
WD
WP
RD
C
C
R
C
R
C
D
D
D
D
RXEN1
RXD1
TXEN1
TXD1
AIN0
AIN1
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