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AT89C2051-24PI
8051-compatible 8-bit microcontroller with 2 KB Flash
Specifications
Key details
| Part Number | AT89C2051-24PI |
|---|---|
| Manufacturer | Microchip Technology |
| Category | 8-bit Microcontroller |
| Lifecycle Status | Obsolete |
| Series | AT89C2051 |
| Package / Case | 20-lead PDIP |
| Pin Count | 20 |
| Operating Temperature | -40°C to +85°C |
| Last Verified | 2026-07-18 |
Overview
Part information
AT89C2051-24PI Overview
AT89C2051-24PI is a Microchip Technology 8051-compatible 8-bit microcontroller with 2 KB Flash supplied in 20-lead PDIP. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Core | 8051-compatible 8 bit |
|---|---|
| Program Memory | 2 KB Flash |
| Maximum Clock | 24 MHz |
| I/O Lines | 15 |
| Supply Voltage | 2.7 V to 6 V family range |
Package and Ordering Notes
The listed package is 20-lead PDIP with 20 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. Lifecycle is recorded as Obsolete; confirm current factory support and last-time-buy constraints before design-in.
Sourcing Guidance
AT89C2051-24PI is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against Microchip Technology documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
Sourcing notes
Lifecycle and sourcing review
Obsolete
This part has a legacy lifecycle status. Submit the exact MPN, quantity, delivery destination and date-code requirements for a sourcing review.
AT89C2051-24PI is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.