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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
128 Segment LCD Drivers
CMOS
The MC14LC5003/5004 are 128-segment, multiplexed-by-four LCD Drivers. The two devices are functionally the same except for their data input protocols. The MC14LC5003 uses a serial interface data input protocol. The device may be interfaced to the MC68HCXX product families using a minimal amount of software (see example). The MC14LC5004 has a IIC interface and has essentially the same protocol, except that the device sends an acknowledge bit back to the transmitter after each eight-bit byte is received. MC14LC5004 also has a “read mode”, whereby data sent to the device may be retrieved via the IIC bus. The MC14LC5003/MC14LC5004 drives the liquid-crystal displays in a multiplexed-by-four configuration.