The MC141512 and MC141515 are high voltage passive LCD backplane driver chips. The MC141512 provides 80 high voltage LCD driving signals whereas the MC141515 provides 160 high voltage LCD driving signals.
They are companion chips to the MC141514 and MC141519 LCD segment driver for medium size LCD panels. All these chips are controlled by the MC68HC05L11 microcomputer.
The MC141515T is the twin die version of the MC141512T.
See Application Note AN-HK-15.

• Operating Supply Voltage Range - Control Logic (VDD Pin): 2.7V to 5.5V Backplane Drivers (VLCD Pin): 10V to 25V
• Operating Temperature Range: -25 to 70˚C
• Direct Serial Data Interface with the MC68HC05L11
• MC141512 - 80 LCD Backplane Driving Signals
• MC141515 - 160 LCD Backplane Driving Signals
• 1:5 to 1:13 Bias
• Expansion to Higher Driver Count by Cascade
• Available in Three Forms:
    TAB (Tape Automated Bonding), 91 Contacts - MC141512T1 182 Contacts - MC141515T
    Die Form Without Gold Bumps, 91 Pads with 4.3 mil Pads Pitch