The W78E52C is an 8-bit microcontroller that can accommodate a wider frequency range with low power consumption. The instruction set for the W78E52C is fully compatible with the standard 8051. The W78E52C contains an 8K bytes Flash EPROM; a 256 bytes RAM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit I/O port P4; three 16-bit timer/counters; and more.
The W78E52C is an 8‑bit CMOS microcontroller from Winbond that is fully compatible with the standard 8051 instruction set. It includes 8 KB flash EPROM, 256 B RAM, four 8‑bit bi‑directional I/O ports, an additional 4‑bit port, three 16‑bit timers, a watchdog timer and a full‑duplex UART.
It operates from a 4.5 V to 5.5 V supply and offers idle and power‑down power‑saving modes. The device is available in several RoHS‑compliant packages (40‑pin DIP, 44‑pin PLCC, 44‑pin PQFP) and the document details pin functions, block diagram, electrical characteristics, and mechanical dimensions.
| Flash EPROM size | 8 KB |
|---|---|
| RAM size | 256 bytes |
| Supply voltage range | 4.5 V to 5.5 V |
| Program memory address space | 64 KB |
| Data memory address space | 64 KB |
| I/O ports | Four 8‑bit ports and one 4‑bit port |
| Timers | Three 16‑bit timer/counters |
| Serial port | Full‑duplex UART |
| Watchdog timer | Included |
| Power‑saving modes | Idle mode and power‑down mode |
The W78E52C contains an 8 KB flash EPROM.
It has four 8‑bit bi‑directional I/O ports and an additional 4‑bit port (P4).
The device operates from 4.5 V to 5.5 V.