Integrated Circuits (ICs) > Embedded Processors and Controllers > Microcontrollers > AT89C4051-24SU

AT89C4051-24SU

Microchip

Part Number:	AT89C4051-24SU
Manufacturer:	Microchip
Part Type:	Integrated Circuits (ICs) > Embedded Processors and Controllers > Microcontrollers > AT89C4051-24SU
Qty Available:
Description:	MCU 8-Bit 89C 8051 CISC 4KB Flash 5V 20-Pin SOIC W - Rail/Tube

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04/22/2026 – There are 515 pieces pieces of Part Number AT89C4051-24SU Available.

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MCU 8-Bit 89C 8051 CISC 4KB Flash 5V 20-Pin SOIC W - Rail/Tube

Specifications

TYPE	DESCRIPTION
Case/Package	SOIC
Contact Plating	Tin
Mount	Surface Mount
Number of Pins	20
Access Time	24 µs
Core Architecture	8051
Data Bus Width	8 b
Frequency	24 MHz
Interface	UART, USART
Max Frequency	24 MHz
Max Operating Temperature	70 °C
Max Supply Voltage	6 V
Memory Size	4 kB
Memory Type	FLASH
Min Operating Temperature	-40 °C
Min Supply Voltage	4 V
Number of I/Os	15
Number of Programmable I/O	15
Number of Timers/Counters	2
Number of UART Channels	1
Operating Supply Voltage	5 V
Oscillator Type	Internal
Peripherals	Brown-out Detect/Reset, POR
RAM Size	128 B
Height	2.35 mm
Length	13 mm
Width	7.6 mm