ATMEGA169PV-8AUR Atmel, ATMEGA169PV-8AUR Datasheet - Page 242
ATMEGA169PV-8AUR
Manufacturer Part Number
ATMEGA169PV-8AUR
Description
MCU AVR 16KB FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA169PV-8AU.pdf
(395 pages)
Specifications of ATMEGA169PV-8AUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Package
64TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
54
Interface Type
SPI/USART/USI
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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23.4
23.4.1
8018P–AVR–08/10
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 process nor-
mally 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. LCD usage example.
Display:
Number of common terminals:
Number of segment terminals:
Bias system:
Drive system:
Operating voltage:
ATmega169
51
1b
1c
50
COM3
SEG0
SEG1
SEG2
49
2e
2f
48
47
46
45
LCD
2a
2g
2d
2b
2c
TN Positive, Reflective
3
1/3 Bias
1/3 Duty
3.0 ±0.3V
21
SEG2
SEG1
SEG0
Connection table
COM0
1b,1c
2c
2f
COM1
ATmega169P
2g
2d
2a
COM2
2e
2b
..
242
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