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SN65556

Texas Instruments
Part Number SN65556
Manufacturer Texas Instruments
Description Electroluminescent Column Drivers
Published Aug 30, 2019
Detailed Description Each Device Drives 32 Electrodes 90-V Output Voltage Swing Capability Using Ramped Supply 15-mA Output Source and Sink C...
Datasheet PDF File SN65556 PDF File

SN65556
SN65556

Overview
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.
When OUTPUT ENABLE is high, all Q outputs are enabled.
Data must be loaded into the latches and OUTPUT ENABLE must be high before supply voltage VCC2 is ramped up.
Serial data output from the shift register can b...


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