Key facts
- Brand
- Winbond
- Model
- W78E51C
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-11
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Winbond W78E51C Datasheet
The W78E51C is an 8‑bit CMOS microcontroller with a 4 KB Flash EPROM, 128 bytes of RAM, four 8‑bit bi‑directional I/O ports, an additional 4‑bit port, two 16‑bit timers, a full‑duplex UART and a watchdog timer. It operates from a wide supply voltage of 4.5 V to 5.5 V and supports both idle and power‑down power‑saving modes.
The datasheet provides detailed pin configurations, functional block diagrams, electrical characteristics, timing waveforms, typical application circuits and package dimensions for DIP‑40, PLCC‑44 and PQFP‑44 variants.
Winbond W78E51C specifications
| Flash memory | 4 KB on‑chip |
|---|---|
| RAM | 128 bytes |
| Supply voltage | 4.5 V to 5.5 V |
| I/O ports | Four 8‑bit ports + one 4‑bit port |
| Additional I/O port | One extra 4‑bit bit‑addressable port |
| Timers | Two 16‑bit timer/counters |
| Serial interface | One full‑duplex UART |
| Watchdog | Integrated watchdog timer |
| Program memory space | 64 KB |
| Data memory space | 64 KB |
| Interrupt sources | Seven sources, two‑level priority |
Source: Winbond W78E51C Datasheet
All Winbond W78E51C documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating voltage range of the W78E51C?
The device operates from 4.5 V to 5.5 V.
How many I/O ports does the W78E51C provide?
It has four 8‑bit bi‑directional ports plus an extra 4‑bit bit‑addressable port.