AT89C2051-24PU Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The AT89C2051-24PU from Microchip (Atmel) is an 8-bit 8051-family microcontroller with 2 KB of Flash memory, running at up to 24 MHz, packaged in a 20-pin PDIP for through-hole industrial control, embedded automation, and general-purpose microcontroller applications.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- AT89C2051-24PU Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7200(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of AT89C2051-24PU?
- 8-bit 8051-core CPU architecture
- Up to 24 MHz maximum clock frequency
- 2 KB on-chip Flash program memory
- 20-pin PDIP through-hole package
- Lead-free (Pb-free) RoHS-compliant construction
- 7-week standard factory lead time
What is AT89C2051-24PU used for?
The AT89C2051-24PU is commonly used in embedded control applications such as industrial automation, appliance controllers, and simple data-acquisition systems that require an 8-bit 8051-compatible core running up to 24 MHz. Its 20-pin PDIP package and low pin count also make it well suited for compact instrumentation and legacy system replacement designs.
What are the specifications of AT89C2051-24PU?
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-20 |
| Factory Lead Time | 7Weeks |
| YTEOL | 14 |
| Has ADC | NO |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | 8051 |
| Clock Frequency-Max | 24MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 2 |
| Number of I/O Lines | 15 |
| Number of Serial I/Os | 1 |
| Number of Timers | 2 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 128 |
| ROM (words) | 2048 |
| ROM Programmability | FLASH |
| Speed | 24MHz |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 6V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Where can I find the AT89C2051-24PU datasheet?
AT89C2051-24PU Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for AT89C2051-24PU?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How fast can the AT89C2051-24PU's clock run?
The AT89C2051-24PU is rated for a maximum clock frequency of 24 MHz, and as an 8-bit 8051-family CPU it provides fully static operation suitable for real-time embedded control tasks requiring deterministic timing.
Why choose the through-hole PDIP-20 form factor for this microcontroller?
The AT89C2051-24PU ships in a 0.300 inch, 20-pin PDIP package per JEDEC MS-001AD, giving designers a rugged through-hole footprint that simplifies hand-assembly and prototyping compared to fine-pitch surface-mount 8051 alternatives.
What lead time and compliance status should buyers expect when sourcing the AT89C2051-24PU?
Buyers should plan for approximately a 7-week factory lead time on the AT89C2051-24PU, which is manufactured with Pb-free, RoHS-compliant construction, helping procurement teams schedule builds around a 20-pin through-hole 8051 microcontroller with predictable global sourcing.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8960 | $1.90 |
| 54+ | $1.8700 | $100.98 |
| 100+ | $1.7200 | $172.00 |
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