|
|
PDF ET6218R Data sheet ( Hoja de datos )
| Número de pieza | ET6218R | |
| Descripción | LED Controller/driver | |
| Fabricantes | Etek Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ET6218R (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
|
No Preview Available !
Etek
Microelectronics
ET6218R
LED Controller/driver
General Description
ET6218R is an LED Controller driver on a 1/7 to 1/8 duty factor. 7 segment output lines, 4 grid output lines,
1 segment/grid output lines, one display memory, control circuit, key scan circuit are all incorporated into a single
chip to build a highly reliable peripheral device for a single chip microcomputer. Serial data is fed to ET6218R via
a three-line serial interface, ET6218R pin assignments and application circuit are optimized for easy PCB Layout
and cost saving advantages.
Features
z CMOS Technology
z Low Power Consumption
z Multiple Display Modes(4～5 Grid, 7～8 segment)
z Key scaning(7×1 Matrix)
z 8-step Dimming Circuitry
z Serial Interface for Clock, Data Input/Output, Strobe Pins
z Available in 18-pin, DIP Package
Pin Configurations
Rev 1.0 2012-4-13
1/15
1 page  
ET6218R
Functional Description
COMMANDS
A command is the first byte(b0～b7) inputted to ET6218R via the DI/O Pin after STB Pin has changed from
HIGH to LOW State. If for some reason the STB Pin is set to HIGH while data or commands are being
transmitted, the serial communication is initialized, and the data/commands being transmitted are considered
invalid.
Command 1：Display Mode Setting Commands
ET6218R provides 2 display mode settings as shown in the diagram below：As started earlier a command is
the first one byte(b0～b7) transmitted to ET6218R via the DI/O Pin when STB is LOW. However, for these
commands,the bit 3 to bit 6(b2～b5)are ignored,bit 7&bit 8(b6～b7) are given a value of 0.
The Display Mode Setting Commands determine the number of segments and grids to be used (7 to 8
segments,4 to 5 grids). A display command ON must be excuted in order to resume display. If the same mode
setting is selected, no command execution is take place, therefore, nothing happens. When Power is turned ON,the
7-grid, 10-segment modes is selected.
MSB
0
0
LSB
─ ─ ─ ─ b1 b0
b2～b5：Not Relevant
Display Mode Setting：
b1,b0—0 0：4 Grids,8 Segments
b1,b0—0 1：5 Grids,7 Segments
Command 2:Data Setting Commands
Data Setting Commands executes the Data Write or Data Read Modes for ET6218R. The data Setting
Command, the bits 5 and 6(b4,b5) are ignored, bit 7(b6) is given the value of 1 while bit 8(b7) is given the value
of 0. Please refer to the diagram below. When Power is turned ON, bit 4 to bit 1(b3～b0) are given the value of 0.
MSB
0
1
LSB
─ ─ b3 b2 b1 b0
b4,b5：Not Relevant
Mode Setting： b3 —0：Normal Operation
Mode b3—1：Test Mode
Address Increment Mode Settings(Display Mode)：
b2—0：Increment Address after Data has been Written
b2—1：Fixes Address
Data Write&Read Mode Setting：
b1,b0—0 0：Write Data to Display Mode
b1,b0—1 0：Read Key Data
Rev 1.0 2012-4-13
5/15
5 Page 
ET6218R
Note：Test condition under
tTHZ（Pull low risistor=10kΩ，Loading capacitor=300pf）
tTLZ（Pull low risistor=10 kΩ，Loading capacitor =300pf）
APPLICATION
1. Display memory is updated by incrementing addresses. Please refer to the following diagram.
STB
CLK
DIN
Command2 Command3
Data1
Data n
Command1 Command4
Command 1：Display Mode Setting Command
Command 2：Data Setting Command
Command 3：Address Setting Command
Data 1～n：Transfer Display Data(14 Bytes max)
Command 4：Display Control Command
2. The following diagram shows the waveform when updating specific addresses.
STB
CLK
DIN Command2 Command3 Data
Command 2：Data Setting
Command Command 3：Address Setting Command
Data：Display Data
Command3
Data
11/15
Rev 1.0 2012-4-13
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet ET6218R.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ET6218R | LED Controller/driver | Etek Microelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |