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PDF HT1618 Data sheet ( Hoja de datos )
| Número de pieza | HT1618 | |
| Descripción | LED Driver | |
| Fabricantes | Art Chip | |
| Logotipo |  |
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HT1618
LED Driver
DESCRIPTION
TM1618 is an LED Controller driven ASIC. 1 segment/grid output lines, MCU digital interface, data latch, High-voltage LED driver,
key scan circuit dare all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer.
Housed in a 18-pin DIP Package, TM1618 pin assignments and application circuit are optimized for easy PCB Layout and cost
saving advantages.
FEATURES
z CMOS Technology
z Display Modes (5segment, 7 grid to 8segment, 4grid)
z Key Scanning (5 x 1Bit)
z 8-Step Dimming Circuitry
z Serial Interface (CLK, STB, DIN, DOUT)
z Oscillatory Manners; RC Oscillation (450KHz ±5%)
z Built-in on-reset circuit
z Available in 18-pin, DIP Package
PIN CONFIGURATION:
APPLICATION
z Micro-computer Peripheral Device
z VCR/VCD/DVD set
z Combi set
TM1618
PIN DESCRIPTION
Pin Name
DIO
Description
Data Input/Output
STB Serial Interface
Strobe
CLK Clock Input Pin
NC NC
K2 Key Data Input Pins
Seg1/KS1~Seg5/KS5
Grid1 ~ Grid2
Grid3~Grid4
Seg12/Grid7~Seg14/Grid5
VDD
VSS
Output Segment
Grid Output Pins
Grid Output Pins
Output (Seg/Grid)
Logic Power
Logic Ground
Explanation
This pin inputs serial data at the rising edge of the shift clock (starting from
the lower bit)
This pin outputs serial data at the falling edge of the shift clock (starting from
the lower bit )
This pin reads initialization serial data at the rising/falling edge of the shift
clock then wait for the command.
The data input after the STB has fallen is processed as a command. When
this pin is “HIGH”, CLK is ignored
This pin reads serial data at the rising edge and outputs data at the falling
edge.
No Connect
The data sent to these pins are latched at the end of the display cycle.
(Internal Pull-Low Resistor)
Segment Output Pins (p-channel, open drain) Also acts as the key source
Grid Output Pins (N-Channel, open drain)
Grid Output Pins (N-Channel, open drain)
Seg/Grid Multiplexing output
5V±10%
Connects the system ground
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Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
HT1618
LED Driver
.All specs and applications shown above subject to change without prior notice.
www.artschip.com
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Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet HT1618.PDF ] | |
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