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11. LCD COG TYPE
The Gate Array (IC301) needs only write ASCII code from the data bus (D4~D7). V0 is power supplies for crystal drive.
R320, R322 are density control resistors.
Consequently, in this set the timing (mainly positive clock) is generated by the LCD interface circuitry of the gate array
(IC301).
R/W
E
DB4~DB7
Circuit Diagram
D4-D7
ENABLE
LCD UNIT
RESET
(COG TYPE)
R/W
V
0
Timing Chart
Density
LED 7
(IC301-4 pin)
R322
C316
R320
DATA
Normal
Dark
H
L
| 163 |
KX-F910BX
IC301
4
LED7
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