The Winbond W77LE532 datasheet details specifications, features, pin configurations, memory organization, and electrical characteristics of this 8‑bit…
The W77LE532 is a fast 8051‑compatible 8‑bit microcontroller from Winbond. It offers a redesigned core that executes instructions faster than a standard 8051 while consuming less power. The device includes 128 KB ISP Flash, 4 KB auxiliary Flash, on‑chip SRAM, and a range of peripherals.
The datasheet provides a complete description of the device, including pin configurations, block diagram, functional description, memory map, power‑management modes, in‑system programming procedures, electrical characteristics, typical application circuits, and package dimensions for DIP, PLCC, and QFP variants.
| Core architecture | 8‑bit 8051‑compatible microcontroller |
|---|---|
| On‑chip SRAM | 1 KB MOVX SRAM |
| Scratchpad RAM | 256 bytes |
| I/O ports | Four 8‑bit ports + one extra 4‑bit port |
| Timers | Three 16‑bit timers |
| Serial ports | Two enhanced full‑duplex serial ports |
| Operating voltage | 2.7 V to 5.5 V |
| Maximum clock frequency | 25 MHz |
| Package types | DIP‑40, PLCC‑44, QFP‑44 |
The device operates from 2.7 V up to 5.5 V.
The microcontroller has four 8‑bit I/O ports and one extra 4‑bit I/O port.