ATMEGA161-8AI Atmel, ATMEGA161-8AI Datasheet - Page 97

• Manufacturer Part Number: ATMEGA161-8AI
• Description: IC AVR MCU 16K 8MHZ IND 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA161-8AI

• 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: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: ATMEGA1618AI

1228D–AVR–02/07
Figure 61. Port B Schematic Diagram (Pin PB6)
Figure 62. Port B Schematic Diagram (Pin PB7)
PB6
PB7
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
MOS
PULL-
UP
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI ENABLE
MASTER SELECT
MOS
PULL-
UP
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI ENABLE
MASTER SELECT
RL
RP
RL
RP
ATmega161(L)
Q
Q
Q
PORTB6
Q
RESET
RESET
PORTB7
DDB6
RESET
RESET
DDB7
WD
WP
RD
WD
RD
WP
R
C
R
C
R
C
R
C
D
D
D
D
MSTR
SPE
SPI SLAVE
OUT
SPI MASTER
IN
MSTR
SPE
SPI ClLOCK
OUT
SPI CLOCK
IN
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