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Each Device Drives 32 Electrodes
90-V Output Voltage Swing Capability Using Ramped Supply
15-mA Output Source and Sink Current Capability
High-Speed Serially-Shifted Data Input
Totem-Pole Outputs
Latches on All Driver Outputs
description
The SN65555, SN75555, SN65556, and SN75556 are monolithic BIDFET† integrated circuits designed to drive the column electrodes of an electroluminescent display. The SN65556 and SN75556 output sequence is reversed from the SN65555 and SN75555 for ease in printed-circuitboard layout.
The devices consist of a 32-bit shift register, 32 latches, and 32 output AND gates. Serial data is entered into the shift register on the low-to-high transition of CLOCK. When high, LATCH ENABLE transfers the shift register contents to the outputs of the 32 latches.
SN75556 Datasheet
