The AT89S2051-24SU is an 8-bit microcontroller from Quarktwin Technology Ltd. that operates within a voltage range of 2.7V to 5.5V and supports fully static operation at frequencies up to 24 MHz. It features 2K bytes of In-System Programmable (ISP) Flash program memory, which allows for easy programming and reprogramming via a serial interface. The microcontroller includes 256 bytes of internal RAM, 15 programmable I/O lines, and two 16-bit timer/counters, making it suitable for a variety of embedded control applications. Additional features include a programmable serial UART channel, an on-chip analog comparator, and hardware support for 8-bit PWM. The device is designed with low power consumption in mind, offering idle and power-down modes to extend battery life in portable applications. It also incorporates a brownout reset and an internal power-on reset for enhanced reliability. The AT89S2051-24SU is compatible with the MCS-51 instruction set, making it a versatile choice for engineers looking for a cost-effective microcontroller solution.
IC MCU 8BIT 2KB FLASH 20SOIC Product overview: AT89S2051-24SU 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, 8BIT, 2KB. Search-friendly keywords include microcontroller, MCU, embedded control, ARM Cortex, Flash memory, low-power, 8-bit, 8BIT, 2KB, Embedded Microcontroller MCU. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 685-AT89S2051-24SU can be used for catalog matching and distributor lookup.
Manufacturer: Microchip Technology
Win Source Part Number: 088105-AT89S2051-24S
Packaging: Tube/Rail
Core Processor: 8051
Number of I/O: 15
Program Memory Size: 2KB (2K x 8)
Program Memory Type: FLASH
Family Name: AT89S2051
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C (TA)
Case / Package: 20-SOIC
Speed(Frequency): 24MHz
Supply Voltage - Operating: 2.7 V to 5.5 V
Part Core Size: 8-Bit
Data RAM Size: 256 x 8
Alternative Parts (Cross-Reference): W79E8213ASG; N79E823ASG; N79E824ASG; P87LPC764FD,512;
Introduction Date: May 02, 1997
ECCN: EAR99
Country of Origin: China, Taiwan
Estimated EOL Date: 2026
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 46 pct.
Supply and Demand Status: Limited
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| ERSAELECTRONICS PTE. LTD. | Win Source Electronics | ODG (Origin Data Global) | DigiKey | Quarktwin Technology Ltd. | VAST STOCK CO., LIMITED | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|---|
| Product Category | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) |
| Product Number | 685-AT89S2051-24SU | 088105-AT89S2051-24SU | AT89S2051-24SU | AT89S2051-24SU-ND | AT89S2051-24SU | AT89S2051-24SU | AT89S2051-24SU | AT89S2051-24SU |
| Product Name | 8-bit 8BIT 2KB Embedded Microcontroller MCU | Embedded - Embedded - Microcontrollers - AT89S2051-24SU | Microcontrollers | Microcontrollers | Microcontrollers | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers | Integrated Circuits (ICs) - Embedded - Microcontrollers |
| Data Bus | 8 Bit | 8 Bit | 8 Bit | 8 Bit | 8 Bit; 8-Bit | 8 Bit; 8-Bit | 8 Bit | |
| Clock Speed | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz | ||
| RAM | 0.2560 KB | 2 KB | 0.2560 KB | 0.2560 KB | 0.2560 KB | 256 KB | ||
| Supply Voltage | 2.7 to 5.5 volts | 2.7 to 5.5 volts | 2.7 to 5.5 volts | 2.7 to 5.5 volts | 5.5 volts | |||
| Serial Interface | UART | UART; USART |
