ATMEGA162-16AI Atmel, ATMEGA162-16AI Datasheet - Page 70

• Manufacturer Part Number: ATMEGA162-16AI
• Description: IC MCU AVR 16K 5V 16MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162-16AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

Special Function IO
Register – SFIOR
Alternate Functions of
Port A
70
ATmega162/V
• 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
figuring the Pin” on page 64
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
Figure 32 on page
Bit
Read/Write
Initial Value
Port Pin
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
and
TSM
R/W
Table 31
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)
68.
XMBK
R/W
6
0
relate the alternate functions of Port A to the overriding signals shown in
for more details about this feature.
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
SFIOR
2513K–AVR–07/09
“Con-