# HT7700A (Component) ## Description HT7700A CMOS lamp dimmer control IC for incandescent light control, key-trigger input, 50 Hz operation, 9–12 V supply, 96-step dimming or ON/OFF switching, 8-pin DIP package. ## Component Details - **Owner:** silicon-yard - **Created:** 6/29/2026 - **Last Updated:** 6/29/2026 - **Visibility:** Public - **Part Type:** Linear - **Manufacturer Part Number:** HT7700A - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/93b7a455764fdba1a056f5318764e7d0b96b655056ea7bdaec80fd875c9c527b.pdf - **Symbol Style:** parametric-v1 - **Manufacturer Name:** Holtek Semiconductor Inc - **Part Type:** Other - **MPN:** HT7700A - **Package / Case Code:** 8-DIP - **Pin Count:** 8 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | ZC | | | 2 | FB | | | 3 | KEY | | | 4 | VSS | | | 5 | TRIG | | | 6 | osC2 | | | 7 | OSC1 | | | 8 | VDD | | --- *Generated from [https://www.flux.ai/silicon-yard/ht7700a~fl](https://www.flux.ai/silicon-yard/ht7700a~fl)*