DESCRIPTION
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 HT1668 via a four-line serial interface. Housed in a 24-pin SO Package, HT1668 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 24-Pin, SOP Package APPLICATION Micro-computer Peripheral Device VCR set Combi set BLOCK DIAGRAM DI/O CLK STB Serial Data Interface Control Dispaly Memory OSC Timing Generator Key Matrix Memory SEGMENT DRIVER/ KEY SCAN OUTPUT/ GRID DRIVER 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/G...
ART CHIP
