ATMEGA48A-AUR Atmel, ATMEGA48A-AUR Datasheet - Page 552

• Manufacturer Part Number: ATMEGA48A-AUR
• Description: IC MCU AVR 4K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48A-AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

34. Errata
34.1
34.1.1
34.2
34.2.1
34.3
34.3.1
8271C–AVR–08/10
Errata ATmega48A
Errata ATmega48PA
Errata ATmega88A
Rev. D
Rev. D
Rev. F
The revision letter in this section refers to the revision of the ATmega48A device.
•
1.
The revision letter in this section refers to the revision of the ATmega48PA device.
•
1.
The revision letter in this section refers to the revision of the ATmega88A device.
•
1.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Analog MUX can be turned off when setting ACME bit
Analog MUX can be turned off when setting ACME bit
Analog MUX can be turned off when setting ACME bit
Analog MUX can be turned off when setting ACME bit
If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in
ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.
Problem Fix/Workaround
Clear the MUX3 bit before setting the ACME bit.
Analog MUX can be turned off when setting ACME bit
If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in
ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.
Problem Fix/Workaround
Clear the MUX3 bit before setting the ACME bit.
Analog MUX can be turned off when setting ACME bit
If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in
ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.
Problem Fix/Workaround
Clear the MUX3 bit before setting the ACME bit.
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