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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
Columns160
Rows128
Char matrix5×8? or 6×8?
Driver ICT6963C
Backlightyellow-green
Arduino driverU8g2lib.h
Connectorpin header
Num Pins20
Pin spacing0.1”
Module sizemm
Connector pin-out (GUESS)2)
Possible pin#Chip pinLabel
1
2
3
4
5
61HALT
72RST
82RST
910SD0
1011SD1
1112SD2
1213SD3
1314SD4
1415SD5
1516SD6
1617SD7
1718WR
1819RD
1920CE
2021C/D
Connector pin-out (NOT CONFIRMED) 3)
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
MDS3 1
MD04
MD15

⇒ 80 to 128 vertical dots, from the physical size most likely 128 (16 lines of characters)

Display size selectors (hard wired)
Pin#IC pinWiredValue
MD26 1
MD37 1

=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 )

Display font size selectors
Pin#IC pinWiredValue
FS08
FS19 1

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).

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) from PCB photo, these signals are connected to the 20pin connector, but order is not apparent
3) from similar 160×128 displays