The SX28AC by Parallax is a Configurable Communications Controllers. Below is the official datasheet preview.
| Part number | SX28AC, SX20AC |
|---|---|
| Manufacturer | Parallax |
| File Size | 1.88 MB |
| Description | Configurable Communications Controllers |
| Datasheet |
 SX20AC-Parallax.pdf
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| Note |
This datasheet PDF includes multiple part numbers: SX28AC, SX20AC. Please refer to the document for exact specifications by model. |
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6 Typical Connection Diagrams 7 Port Descriptions 9 Reading and Writing the Ports 9 Read-Modify-Write Considerations11 Port Configuration 11 MODE Register 11 Port Configuration Registers 11 Port Configuration Upon Reset12 Special-Function Registers 13 PC Register (02h) 13 STATUS Register (03h) 13 OPTION Register14 Device Configuration Registers 15 FUSE Word (Read/Program at FFFh in Main Memory Map) 15 FUSEX Word (Read/Program via Programming Command) 16 DEVICE Word (Hard-Wired Read-Only)16 Me
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