ATMEGA169-16AI Atmel, ATMEGA169-16AI Datasheet - Page 349
ATMEGA169-16AI
Manufacturer Part Number
ATMEGA169-16AI
Description
IC AVR MCU 16K 16MHZ IND TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169-16AI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
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
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
For Use With
ATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Manufacturer
Quantity
Price
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Errata
ATmega169 Rev E
ATmega169 Rev D
2514P–AVR–07/06
•
1. Interrupts may be lost when writing the timer registers in the asynchronous
•
• High serial resistance in the glass can result in dim segments on the LCD
•
3. Interrupts may be lost when writing the timer registers in the asynchronous
2. High serial resistance in the glass can result in dim segments on the LCD
1. IDCODE masks data from TDI input
Interrupts may be lost when writing the timer registers in the asynchronous timer
Interrupts may be lost when writing the timer registers in the asynchronous timer
IDCODE masks data from TDI input
timer
If one of the timer registers which is synchronized to the asynchronous timer2 clock
is written in the cycle before a overflow interrupt occurs, the interrupt may be lost.
Problem Fix/Workaround
Always check that the Timer2 Timer/Counter register, TCNT2, does not have the
value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare
Register, OCR2.
timer
If one of the timer registers which is synchronized to the asynchronous timer2 clock
is written in the cycle before a overflow interrupt occurs, the interrupt may be lost.
Problem Fix/Workaround
Always check that the Timer2 Timer/Counter register, TCNT2, does not have the
value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare
Register, OCR2.
Some display types with high serial resistance (>20 kΩ) inside the glass can result
in dim segments on the LCD
Problem Fix/Workaround
Add a 1 nF (0.47 - 1.5 nF) capacitor between each common pin and ground.
The JTAG instruction IDCODE is not working correctly. Data to succeeding devices
are replaced by all-ones during Update-DR.
Problem Fix / Workaround
–
–
–
If ATmega169 is the only device in the scan chain, the problem is not visible.
Select the Device ID Register of the ATmega169 by issuing the IDCODE
instruction or by entering the Test-Logic-Reset state of the TAP controller to
read out the contents of its Device ID Register and possibly data from
succeeding devices of the scan chain. Issue the BYPASS instruction to the
ATmega169 while reading the Device ID Registers of preceding devices of
the boundary scan chain.
If the Device IDs of all devices in the boundary scan chain must be captured
simultaneously, the ATmega169 must be the first device in the chain.
ATmega169/V
349
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