ATMEGA162L-8MC Atmel, ATMEGA162L-8MC Datasheet - Page 68

• Manufacturer Part Number: ATMEGA162L-8MC
• Description: IC MCU AVR 16K 3V 8MHZ 44-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162L-8MC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, 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: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-VQFN Exposed Pad
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

Special Function IO Register –
SFIOR
Alternate Functions of Port A
68
ATmega162(V/U/L)
• Bit 2 – PUD: Pull-up Disable
When this bit is written to one, the pull-ups in the I/O ports are disabled even if the DDxn
and PORTxn Registers are configured to enable the pull-ups ({DDxn, PORTxn} = 0b01).
See “Configuring the Pin” on page 62 for more details about this feature.
Port A has an alternate function as the address low byte and data lines for the External
Memory Interface and as Pin Change Interrupt.
Table 29. Port A Pins Alternate Functions
Table 30 and Table 31 relate the alternate functions of Port A to the overriding signals
shown in Figure 32 on page 66.
Bit
Read/Write
Initial Value
Port Pin
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
TSM
R/W
7
0
Alternate Function
AD7 (External memory interface address and data bit 7)
PCINT7 (Pin Change INTerrupt 7)
AD6 (External memory interface address and data bit 6)
PCINT6 (Pin Change INTerrupt 6)
AD5 (External memory interface address and data bit 5)
PCINT5 (Pin Change INTerrupt 5)
AD4 (External memory interface address and data bit 4)
PCINT4 (Pin Change INTerrupt 4)
AD3 (External memory interface address and data bit 3)
PCINT3 (Pin Change INTerrupt 3)
AD2 (External memory interface address and data bit 2)
PCINT2 (Pin Change INTerrupt 2)
AD1 (External memory interface address and data bit 1)
PCINT1 (Pin Change INTerrupt 1)
AD0 (External memory interface address and data bit 0)
PCINT0 (Pin Change INTerrupt 0)
XMBK
R/W
6
0
XMM2
R/W
5
0
XMM1
R/W
4
0
XMM0
R/W
3
0
PUD
R/W
2
0
PSR2
R/W
1
0
PSR310
R/W
0
0
2513C–AVR–09/02
SFIOR