LED Driver IC
SC6928(:S&CIC0311)
DESCRIPTION
LED Driver IC
SC6928 is an LED Controller driven on a 1/7to 1/8 duty factor. Eleven seg...
Description
SC6928(:S&CIC0311)
DESCRIPTION
LED Driver IC
SC6928 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 SC6928 via a four-line serial interface. Housed in a 28-pin SO Package, SC6928 pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.
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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
1 1
SC6928(:S&CIC0311)
INPUT/OUTPUT CONFIGURATIONS
LED Driver IC
The schematic diagrams of the input and output circuits of the logic section are shown below. Input Pins: CLK, STB & DIN
VDD
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GND
Input Pins: K1 to K2
VDD
GND
Output Pins: DOUT, GR1 to GR4
VDD
GND
Output Pins: SG1 t...
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