ATMEGA103-6AI Atmel, ATMEGA103-6AI Datasheet - Page 82

IC MCU 128K 6MHZ A/D IT 64TQFP

ATMEGA103-6AI

Manufacturer Part Number
ATMEGA103-6AI
Description
IC MCU 128K 6MHZ A/D IT 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA103-6AI

Core Processor
AVR
Core Size
8-Bit
Speed
6MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 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
ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA103-6AI
Manufacturer:
ATMEL
Quantity:
586
ADC Noise Canceling
Techniques
82
ATmega103(L)
Digital circuitry inside and outside the ATmega103(L) generates EMI, which might affect
the accuracy of analog measurements. If conversion accuracy is critical, the noise level
can be reduced by applying the following techniques:
1. The analog part of the ATmega103(L) and all analog components in the applica-
2. Keep analog signal paths as short as possible. Make sure analog tracks run over
3. The AV
4. Use the ADC Noise Canceler function to reduce induced noise from the CPU.
5. If some Port F pins are used as digital inputs, it is essential that these do not
Figure 49. ADC Power Connections
tion should have a separate analog ground plane on the PCB. This ground plane
is connected to the digital ground plane via a single point on the PCB.
the analog ground plane, and keep them well away from high-speed switching
digital tracks.
shown in Figure 49.
switch while a conversion is in progress.
CC
pin on the ATmega103(L) should have its own decoupling capacitor as
Analog Ground Plane
10nF
(ADC7) PF7
(ADC6) PF6
(ADC5) PF5
(ADC4) PF4
(ADC3) PF3
(ADC2) PF2
(ADC1) PF1
(ADC0) PF0
(AD0) PA0
AGND
AVCC
AREF
GND
VCC
51
52
53
54
55
56
57
58
59
60
61
61
62
62
63
63
64
64
1
0945I–AVR–02/07

Related parts for ATMEGA103-6AI