Datasheet for the 74HC595 and 74HCT595 shift register with storage register and three-state outputs, a 367 KB edition likely differing in publisher or revision from other copies. Content covers pin descriptions, serial data and latch clock timing, output current limits and supply range. It supports repair of LED signs, port expanders and front-panel boards using cascaded 595 chips. Check whether your chip is HC or HCT and confirm the package matches the footprint before using this sheet for replacement or probing.
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