Key facts
- Brand
- Winbond
- Model
- W78E365
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-11
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Winbond W78E365 8-bit Microcontroller Datasheet
The W78E365 is an 8‑bit CMOS microcontroller compatible with the 8052 instruction set. It provides 64 KB of main Flash APROM, 4 KB of auxiliary LDROM, and 256 + 1 KB of on‑chip RAM, together with four 8‑bit bi‑directional I/O ports, an extra 4‑bit programmable port, three 16‑bit timers, a full‑duplex serial port, watchdog timer and PWM capability.
The datasheet details pin configurations for DIP‑40, PLCC‑44 and QFP‑44 packages, functional block diagrams, clock options (crystal or external), power‑management modes (idle and power‑down), reset behavior, and programming registers. Revision history and contact information for Winbond are also included.
Winbond W78E365 specifications
| Main Flash APROM size | 64 KB |
|---|---|
| Auxiliary Flash LDROM size | 4 KB |
| On‑chip RAM | 256 + 1 KB |
| 8‑bit I/O ports | 4 |
| Additional programmable port | 4‑bit (P4) |
| Timer/counters | Three 16‑bit |
| Serial port | Full‑duplex |
| Watchdog timer | Included |
| PWM capability | Schannel PWM |
| Power‑management modes | Idle and Power‑down |
| Package options | DIP‑40, PLCC‑44, QFP‑44 |
All Winbond W78E365 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What power‑management modes does the microcontroller support?
The W78E365 supports an idle mode and a power‑down mode, both selectable by software.
How is an external clock connected?
Connect the external clock to pin XTAL1; leave XTAL2 unconnected.