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M299

LCD Description
ModelM299
ManufacturerNAN YA Plastics Corp (Taiwan)
Recovered fromWayfarer TGX #13722 1)
Board IDsM299- Rev.A, D36072B1J, M299-GA, 36171103M336, LMCCAT299C
LCD typepositive
Polarizer typetransflective
Columns160? 192?
Rows128?
Char matrix5×8? or 6×8?
Driver ICT6963C
Backlight
Arduino driverU8g2lib.h
Connectorpin header
Num Pins20
Pin spacing0.1“
Module sizemm
Connector pin-out2)
Possible pin#Label
1
2
3
4
5
6HALT
7RST
8RST
9SD0
10SD1
11SD2
12SD3
13SD4
14SD5
15SD6
16SD7
17WR
18RD
19CE
20C/D
Connector pin-out 3) Arduino test rig
Pin#IC pinLabelPincolour
1FGFrame Ground
2VSSGround
3VDDSupply Voltage for Logic
4VO(variable) Supply Voltage for LCD
5VEENegative Voltage Output
6/WRData Write
7/RDData Read
8/CEChip Enable
9C/DCommand Write
10/HALTClock Operating Stop Signal
11/RESETReset Signal
12DB0Data Bus Line 0
13DB0Data Bus Line 1
14DB0Data Bus Line 2
15DB0Data Bus Line 3
16DB0Data Bus Line 4
17DB0Data Bus Line 5
18DB0Data Bus Line 6
19DB0Data Bus Line 7
20NCNo 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 its Vss then max 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, from the physical size most likely 16 lines (128 vertical dot resolution)

Display size selectors (hard wired)
Pin#IC pinWiredValue
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 )

Display font size selectors
Pin#IC pinWiredValue
FS08
FS191

not sure what FS0 connects to, if Vdd then 5×8 font ⇒ 160 horizontal dots, if Vss then 6×8 font ⇒196 horizontal dots.

Additional info

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

Examples :

M299 front

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