ATMEGA161L-4AI Atmel, ATMEGA161L-4AI Datasheet - Page 99

• Manufacturer Part Number: ATMEGA161L-4AI
• Description: IC AVR MCU 16K LV 4MZ IND 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

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

Port C Schematics
1228D–AVR–02/07
Table 32. DDCn Effects on Port C Pins
Note:
Note that all port pins are synchronized. The synchronization latch is, however, not
shown in the figure.
Figure 63. Port C Schematic Diagram (Pins PC0 - PC7)
DDCn
0
0
1
1
1. n: 7, 6,…0, pin number
PORTCn
0
1
0
1
Output
Output
Input
Input
I/O
Pull-up
Yes
No
No
No
(1)
Comment
Tri-state (high-Z)
PCn will source current if ext. pulled low
Push-pull Zero Output
Push-pull One Output
ATmega161(L)
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