LED Driver IC
Description
SC1628D(：S&CIC0531)
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LED Driver IC
DESCRIPTION
SC1628D is an LED Controller driven on a 1/7to 1/8 duty factor.
Eleven segment output lines, six 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 SC1628D via a four-line serial interface.
Housed in a 28-pin SO Package, SC1628D pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.
FEATURES
CMOS Technology Low Power Consumption Multiple Display Modes Key Scanning 8-Step Dimming Circuitry Serial Interface for Clock, Data Input, Data Output, Strobe Pins Available in 28-Pin, SOP Package
APPLICATION
Micro-computer Peripheral Device VCR set Combi set
BLOCK DIAGRAM
Control Serial DI/O CLK STB Data Interface Dispaly Memory SEGMENT DRIVER/ KEY SCAN OUTPUT/ OSC OSC Timing Generator GRID DRIVER
R Key Matrix Memory GND
SG1/KS1 SG2/KS2 SG3/KS3 SG4/KS4 SG5/KS5 SG6/KS6 SG7/KS7 SG8/KS8 SG9/KS9 SG10/KS10 SG12/GR7 SG13/GR6 SG14/GR5 GR4 GR3 GR2 GR1
Dimming Circuit
K1
K2
VDD GND
INPUT/OUTPUT CONFIGURATIONS
1 1
SC1628D(：S&CIC0531)
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DataSheet4U.
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VDD
LED Driver IC
The schematic diagrams of the input and output circuits of the logic section are shown below.
Input Pins: CLK, STB & DIN
GND
Input Pins: K1 to K2
VDD
GND
Output Pins: DOUT, GR1 to GR4
VDD
GND
Output Pins: SG1 to SG10
VDD
GND
Output Pins: GR5, GR6 and SG12/GR7
VDD
GND
PIN CONFIGURATION
2 2
SC1628D(：S&CIC0531)
www.
DataSheet4U.
com
LED Driver IC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND GR1 GR2 GND GR3 GR4 GND VDD SG14/GR5 SG13/GR6 SG12/GR7 SG10/KS10 SG9/KS9 SG8/KS8
NC DI/O CLK STB K1 K2 VDD SG1/KS1 SG2/KS2 SG3/KS3 SG4/KS4 SG5/KS5 SG6/KS6 SG7/KS7
IC:SC1628D
PIN DESCRIPTION
Pin Name DI/O CLK I/O I/O I Description Data Output Pin ( N-Channel, Open-Drai...
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