LD1207L

TECHNICAL DATA DESCRIPTION LD1207L The LD1207L is specifically designed for LED and LED DISPLAY derivers. The LD1207L have 12/9 segment output lines, 7 to 4 grid output lines, one display memory, control circuit and 3 line serial data interface. Those functions are all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer. It is very convenience to control for numeric display. LD1207L’s pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages. w w w .D at h S a t e e 4U . m o c FEATURES · CMOS Technology · Segment output line selection by command : 12 ~ 9 · Grid output line selection by command : 7 ~ 4 · Operation voltage : 3~5V · Low Power Consumption · 8-Step Dimming control by command · Serial Interface for Clock, Data Input, Strobe Pins · 24-pin, SOP Package APPLICATION · Segment LED display : VCR, DVD, MWO w w w .D t a S a e h OSC DIN CLK STB VDD SG1 SG2 SG3 SG4 SG5 SG6 SG7 t e 1 PIN CONNECTION 24 23 22 21 20 19 18 17 16 15 14 13 GND GR1 GR2 GR3 GR4 GND VDD SG12/GR5 SG11/GR6 SG10/GR7 SG9 SG8 U 4 .c m o 2 3 4 5 6 7 8 9 10 11 12 w w w .D at h S a t e e 4U . m o c 1 TECHNICAL DATA LD1207L BLOCK DIAGRAM LD1207L Control SG1 SG2 SG3 SG4 DIN CLK STB Serial Data Interface SG5 Display Memory Segment Driver / Grid Driver SG6 SG7 SG8 SG9 SG10/GR7 OSC R OSC Timing Generator SG11/GR6 SG12/GR5 GR4 GND Dimming Circuit GR3 GR2 GR1 ...