ATMEGA6490-16AI Atmel, ATMEGA6490-16AI Datasheet - Page 235
ATMEGA6490-16AI
Manufacturer Part Number
ATMEGA6490-16AI
Description
IC AVR MCU FLASH 64K 5V 100TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA329-16AU.pdf
(392 pages)
Specifications of ATMEGA6490-16AI
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
68
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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
100-TQFP, 100-VQFP
For Use With
ATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFPATSTK504 - STARTER KIT AVR EXP MOD 100P LCD
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA6490-16AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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23.3
23.3.1
2552K–AVR–04/11
LCD Usage
LCD Initialization
The following section describes how to use the LCD.
Prior to enabling the LCD some initialization must be preformed. The initialization pro-
cess normally consists of setting the frame rate, duty, bias and port mask. LCD contrast
is set initially, but can also be adjusted during operation.
Consider the following LCD as an example:
Figure 23-8.
Display:
Number of common terminals:
Number of segment terminals:
Bias system:
Drive system:
Operating voltage:
ATmega329
51
1b
1c
50
COM3
SEG0
SEG1
SEG2
49
2e
2f
48
47
46
45
LCD
2a
2g
2d
ATmega329/3290/649/6490
2b
2c
SEG2
SEG1
SEG0
TN Positive, Reflective
3
1/3 Bias
1/3 Duty
3.0 ± 0.3 V
21
Connection table
COM0
1b,1c
2c
2f
COM1
2g
2d
2a
COM2
2e
2b
..
235
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