The SH79F085 and SH79F165 are 8051‑compatible micro‑controllers offered by Sino Wealth. The note introduces the devices, their package options, and the JET51 driver that enables in‑circuit programming and debugging via a JTAG interface.
It provides step‑by‑step instructions for installing Keil uVision, connecting the target board, creating a Keil project, building the firmware, and downloading the resulting HEX file to the on‑chip Flash memory. An appendix describes the supplied target board and its power interfaces.
| Package (SH79F165) | SOP24/SOP28 |
|---|---|
| Package (SH79F085) | TSSOP20 |
| Maximum VDD‑GND capacitance | 220 µF |
| Power Supply Interface 2 voltage range | 9 V – 12 V |
| Program size (code) | 520 bytes |
The capacitance between VDD and GND must not exceed 220 µF.
Connect the flat cable from the SH79F085/SH79F165 target board to the JET51 emulator via JTAG and ensure the JTAG pins have no load.
Interface 2 supplies a regulated 5 V, while the external DC jack accepts 9 V to 12 V input.