Microchip Technology, Inc. Embedded - Embedded - Microcontrollers - AT89C55WD-33JI AT89C55WD-33JI

Manufacturer: Microchip Technology
Storage Condition: Dry storage cabinet & Humidity protection package
Win Source Part Number: 1046654-AT89C55WD-33JI
Mounting: SMD (SMT)
Memory Type: FLASH
Memory Size: 20 kB
RAM Size: 256 B
Number of Pins: 44
Categories: Embedded - Microcontrollers
Case / Package: PLCC
Max Frequency: 33 MHz
Alternative Parts (Cross-Reference): AT89C55WD-33JIAT89C55WD33JI;
Popularity: Low
Fake Threat In the Open Market: 50 pct.
Supply and Demand Status: Shortage
Maximum Operating Temperature: 85 °C
Data Bus Width: 8 b
Lead Free: Contains Lead
RoHS: Compliant
Radiation Hardening: No
Min Operating Temperature: -40 °C
Max Supply Voltage: 5.5 V
Min Supply Voltage: 4.5 V
Core Architecture: 8051
Number of I/Os: 32
Number of Programmable I/O: 32
Number of Timers/Counters: 3

MCU 8-bit AT89 80C51 CISC 20KB Flash 5V 44-Pin PLCC Product overview: AT89C55WD-33JI from Microchip Technology is an Embedded Microcontroller MCU for industrial control, IoT devices, embedded automation, motor control, metering, and low-power board designs. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 8-bit, 20KB, 5V. Search-friendly keywords include microcontroller, MCU, embedded control, ARM Cortex, Flash memory, low-power, 8-bit, 20KB, 5V, Embedded Microcontroller MCU. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 685-AT89C55WD-33JI can be used for catalog matching and distributor lookup.