SPLC780A1

SPLC780A1 16COM/40SEG CONTROLLER/DRIVER GENERAL DESCRIPTION The SPLC780A1, a dot-matrix LCD controller and driver from SUNPLUS, is a unique design for displaying alpha-numeric, Japanese-Kana characters and symbols. The SPLC780A1 provides two types of interfaces to MPU: 4-bit and 8-bit interfaces. The transferring speed of 8-bit is twice faster than 4-bit. A single SPLC780A1 is able to display up to two 8-character lines. can be extended. By cascading with SPLC100 or SPLC063, the display capability The CMOS technology ensures the power saves in the most efficient way and the performance keeps in the highest rank. FEATURES Character generator ROM: 7200 bits BLOCK DIAGRAM OSC1 Timing Generation Circuit Parallel to Serial Data Conversion Circuit Busy Flag Á Character Generator ROM  à à   Á Character Generator RAM  Á Á Á Á Character font 5 x 7 dots: 160 characters Character font 5 x 10 dots: 32 characters OSC2 VDD VSS CL1,CL2 M 40-bit Shift Register ÄÅ D Character generator RAM: 512 bits Character font 5 x 7 dots: 8 characters Character font 5 x 10 dots: 4 characters DB3-0 DB7-4 RS R/W E Power Supply for LCD Drive : (V5-1) I/O Buffer Instruction Register Instruction Decorder à  Cursor Blink Control Circuit  Data Register Latch Circuit ÄÅ Display Data RAM 80 Bytes 16-bit ÆÇ Shift Register 40 Segments x 16 Commons LCD Driver COM16-1 Provide connecting to 4-bit or 8-bit MPU Direct driver for LCD: 16 COMs x 40 SEGs Duty factor (selected by program): à SEG4...