ATMEGA168A-PU Atmel, ATMEGA168A-PU Datasheet - Page 554
ATMEGA168A-PU
Manufacturer Part Number
ATMEGA168A-PU
Description
IC MCU AVR 16K FLASH 28PDIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA168A-PU
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
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Controller Family/series
Atmega
No. Of I/o's
23
Eeprom Memory Size
512Byte
Ram Memory Size
1KB
Cpu Speed
20MHz
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA168A-PU
Manufacturer:
ATMEL
Quantity:
1 000
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34.7
34.7.1
34.7.2
34.7.3
34.7.4
8271C–AVR–08/10
Errata ATmega328
Rev D
Rev C
Rev B
Rev A
The revision letter in this section refers to the revision of the ATmega328 device.
•
1.
Not sampled.
•
•
1. Unstable 32 kHz Oscillator
2. Unstable 32 kHz Oscillator
•
•
1. Unstable 32 kHz Oscillator
2. Unstable 32 kHz Oscillator
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
Unstable 32 kHz Oscillator
Analog MUX can be turned off when setting ACME bit
Unstable 32 kHz Oscillator
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.
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.
The 32 kHz oscillator does not work as system clock. The 32 kHz oscillator used as asyn-
chronous timer is inaccurate.
Problem Fix/ Workaround
None.
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.
The 32 kHz oscillator does not work as system clock. The 32 kHz oscillator used as asyn-
chronous timer is inaccurate.
Problem Fix/ Workaround
None.
554
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