UPD16663 Datasheet, PDF (5/40 Pages) NEC – 240-OUTPUT LCD COLUMN SEGMENT DRIVER WITH BUILT-IN RAM

µPD16663
(10) Data latch (1)
Latches 240-pixel data read from RAM.
(11) Data latch (2)
Latches 240-pixel data in synchronization with the STB signal.
(12) Level shifter
Converts the internal circuit operating voltage (3.3 V) to the voltage required by the LCD driver and row
driver interface (5 V).
(13) DEC
Decodes the gray scale display data into the corresponding LCD drive voltages V0, V1, and V2.
(14) LCD driver circuit
Creates the voltage to be applied to the LCD by selecting one of LCD drive power supplies V0, V1, or V2,
according to the gray scale data and display off signal (/DOFF).
(15) Self-diagnostic circuit
Automatically detects any mismatch between the operation timings of the master and slave chips cause by
noise, etc., and issues a refresh signal to all the column drivers.
• Address Map Image (Half VGA Size)
Column direction specified with A7 to A0
Y1
Y1
Line direction specified
with A16 to A8
Y240
Y240
L1
Address increases in this direction
L160
No. 0
No. 2
L1
Address increases in this direction
L160
No. 1
No. 3
Y1
Y1
Y240
Y240
Data Sheet S13392EJ1V0DS00
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