Equivalent & Substitute Parts for AT89C51RC-24JC

Part Overview

AT89C51RC-24JC is an 8-bit microcontroller IC from Microchip Technology, categorized under Embedded products. It features 32KB FLASH program memory, 24MHz speed, and a 44-PLCC (16.6x16.6) package. The device is classified as obsolete, necessitating identification of alternative models with equivalent electrical and mechanical specifications for continued application support.

Key Parameters

Manufacturer Part Number	Manufacturer	Series	Core Processor	Core Size	Speed	Connectivity	Peripherals	Number of I/O	Program Memory Size	Program Memory Type	RAM Size	Voltage - Supply (Vcc/Vdd)	Oscillator Type	Operating Temperature	Mounting Type	Supplier Device Package	Package / Case	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status	ECCN	HTSUS
AT89C51RC-24JC	Microchip Technology	89C	8051	8-Bit	24MHz	SPI, UART/USART	WDT	32	32KB (32K x 8)	FLASH	512 x 8	4V ~ 5.5V	Internal	0°C ~ 70°C (TA)	Surface Mount	44-PLCC (16.6x16.6)	44-LCC (J-Lead)	RoHS non-compliant	2 (1 Year)	REACH Unaffected	EAR99	8542.31.0015

Substitute Part Grouping Explanation

Substitution is based strictly on electrical and mechanical parameter matching. Key factors considered are core processor type, memory sizes, operating voltage, speed, number of I/O, package dimensions and type, as well as regulatory compliance and product status. Only alternate parts meeting all provided attributes are listed.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Core Processor	Core Size	Speed	Connectivity	Peripherals	Number of I/O	Program Memory Size	Program Memory Type	RAM Size	Voltage - Supply (Vcc/Vdd)	Oscillator Type	Operating Temperature	Mounting Type	Supplier Device Package	Package / Case	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status	ECCN	HTSUS
AT89C51RC-24JC	Microchip Technology	89C	8051	8-Bit	24MHz	SPI, UART/USART	WDT	32	32KB (32K x 8)	FLASH	512 x 8	4V ~ 5.5V	Internal	0°C ~ 70°C (TA)	Surface Mount	44-PLCC (16.6x16.6)	44-LCC (J-Lead)	RoHS non-compliant	2 (1 Year)	REACH Unaffected	EAR99	8542.31.0015
AT89C51RC-24JU	Microchip Technology	89C	8051	8-Bit	24MHz	SPI, UART/USART	WDT	32	32KB (32K x 8)	FLASH	512 x 8	4V ~ 5.5V	Internal	-40°C ~ 85°C (TA)	Surface Mount	44-PLCC (16.6x16.6)	44-LCC (J-Lead)	ROHS3 Compliant	3 (168 Hours)	REACH Unaffected	EAR99	8542.31.0001

Engineering Selection Recommendations

AT89C51RC-24JC is obsolete and RoHS non-compliant. AT89C51RC-24JU maintains active product status with ROHS3 compliance. Both devices share equivalent mechanical and electrical parameters. For applications requiring current environmental compliance or broader operating temperature, AT89C51RC-24JU fulfills all matching criteria based on the provided data.

Frequently Asked Questions (FAQ)

Q1: What determines a compatible substitute for the AT89C51RC-24JC?
A1: Compatibility is determined by equivalence in core processor, memory size and type, operating voltage range, speed, number of I/Os, package dimensions and type, and regulatory status.

Q2: Are there differences in package or mounting type between AT89C51RC-24JC and AT89C51RC-24JU?
A2: Both devices utilize the 44-PLCC (16.6x16.6) package with 44-LCC (J-Lead), and are intended for surface mount applications.

Q3: How do operating temperature ranges compare?
A3: AT89C51RC-24JU supports a broader range (-40°C ~ 85°C) versus AT89C51RC-24JC (0°C ~ 70°C), based strictly on provided parameters.

Q4: Is there a difference in environmental compliance between the two?
A4: AT89C51RC-24JC is RoHS non-compliant; AT89C51RC-24JU is ROHS3 compliant.

Q5: Is the substitute AT89C51RC-24JU still in production?
A5: The substitute part status is listed as Active, in contrast to the main part’s obsolete status.

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