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LMCCAT299C

LCD Description
ModelLMCCAT299C
ManufacturerNAN YA Plastics Corp (Taiwan)
Recovered fromWayfarer TGX 13722 1)
Board IDsM299- Rev.A, D36072B1J, M299-GA, 36171103M336, LMCCAT299C
LCD typepositive
Polarizer typetransflective
Columns192 pixels
Rows128 pixels
Char matrix6×8
Driver ICT6963C
Backlightyellow-green
Arduino driverU8g2lib.h
Connectorpin header
Num Pins20
Pin spacing0.1“
Module sizemm
Connector pin-out 2)
Pin#IC pinLabelDescription
1 FGFrame Ground
263VSSGround
361VDDSupply Voltage for Logic
4 VO(variable) Supply Voltage for LCD
5 VEENegative Voltage Output
618/WRData Write
719/RDData Read
820/CEChip Enable
921C/DCommand Write
101/HALTClock Operating Stop Signal
112/RESETReset Signal
1210DB0Data Bus Line 0
1311DB1Data Bus Line 1
1412DB2Data Bus Line 2
1513DB3Data Bus Line 3
1614DB4Data Bus Line 4
1715DB5Data Bus Line 5
1816DB6Data Bus Line 6
1917DB7Data Bus Line 7
20 NCNo Connection

From a photo of the T6963C pins 3,6,7,9 are tied together, it is not apparent whether they go to Vdd or Vss. If it is Vss then maximum vertical resolution would be 64 v-dots, which seems a bit small for a 95mm high display, so I'll assume they're all tied to Vdd.

Display size selectors (hard wired)
Pin#IC pinWiredValue
Dual54 1
MDS3 1
MD04 0
MD15 0

⇒ 80 to 128 vertical dots, from the physical size most likely 128 (16 lines of characters).
128 is now confirmed from looking at a sample of these displays.

Display size selectors (hard wired)
Pin#IC pinValue
MD261
MD371

=32 character columns (or this would give 80 columns if they're tied low, a bit excessive for this width display and not enough control chips to handle it).
32 is now confirmed from looking at a sample of these displays.

Display font size selectors
Pin#IC pinValue
FS080
FS191

not sure what FS0 connects to, if Vdd then 5×8 font ⇒ 160 horizontal dots, if Vss then 6×8 font ⇒192 horizontal dots (but again not enough control chips to handle it).
FS0 apparently does connect to Vss, from looking at a sample of these displays. So this guess was wrong, it is 192 dots wide.

Additional info

  • Chips on board: T6963C, T6A39A (x2) T6A40 (x2) , 74HC40103D, 74HC74D, BA10324AF, MT62C256F-70LL
  • Similar to OCM160128-1

Examples :

1)
Wayfarer Transit Systems Ltd, England
2)
based on a similar 160×128 displays