T89C51CC01CA-SLSIM Equivalent & Substitute Parts

Part Overview

The T89C51CC01CA-SLSIM is an 80C51-based 8-bit microcontroller manufactured by Microchip Technology, featuring 32KB FLASH program memory, 2KB EEPROM, and integrated CANbus connectivity. This device operates at 40MHz with a supply voltage range of 3V to 5.5V and is housed in a 44-PLCC surface mount package.

The T89C51CC01CA-SLSIM carries an Obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this microcontroller.

Substiute Parts

T89C51CC01CA-SLSIM

Microchip TechnologyIn Stock: 928T89C51CC01CA-SLSIM Datasheet

Current PartRFQ

AT89C51CC01CA-SLSUM

Microchip TechnologyIn Stock: 1849AT89C51CC01CA-SLSUM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T89C51CC01CA-SLSIM is determined by the following critical parameters:

• Core processor architecture (80C51)
• Program memory capacity and type (32KB FLASH)
• EEPROM and RAM sizes (2K x 8 and 1.25K x 8 respectively)
• Supply voltage range (3V ~ 5.5V)
• Connectivity features (CANbus, UART/USART)
• Peripheral set (POR, PWM, WDT)
• Data converter specifications (A/D 8x10b)
• Package type and pin count (44-LCC J-Lead)
• Operating temperature range (-40°C ~ 85°C)

The AT89C51CC01CA-SLSUM meets all these criteria and qualifies as a direct substitute. Both devices share identical core architecture, memory configuration, connectivity, and package specifications. The primary distinction is product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The AT89C51CC01CA-SLSUM is the qualified substitute for the obsolete T89C51CC01CA-SLSIM. Selection of the substitute is supported by the following factors:

• Identical electrical and functional specifications across all critical parameters
• Active product status ensuring ongoing availability and supply chain support
• ROHS3 compliance versus non-compliant status of the original part
• Verified programmability certification
• Higher I/O count (34 versus 32), providing additional design flexibility
• Equivalent package and pinout compatibility

The substitute part maintains full functional equivalence while offering improved compliance posture and supply reliability.

Frequently Asked Questions (FAQ)

Q: Are the T89C51CC01CA-SLSIM and AT89C51CC01CA-SLSUM pin-compatible?

A: Yes. Both devices use the 44-LCC (J-Lead) package with identical pinout and electrical characteristics. Direct socket substitution is supported.

Q: What is the difference in I/O count between these parts?

A: The main part provides 32 I/O lines, while the substitute provides 34 I/O lines. This difference does not affect compatibility; the additional I/O on the substitute represents enhanced functionality.

Q: Does the substitute part require different handling or storage conditions?

A: The substitute part has a Moisture Sensitivity Level (MSL) of 3 (168 Hours) compared to MSL 2 (1 Year) for the original. This indicates more stringent moisture control requirements during storage and handling. Refer to component storage guidelines for MSL 3 devices.

Q: Is the substitute part suitable for new designs?

A: The AT89C51CC01CA-SLSUM carries Active product status and ROHS3 compliance, making it appropriate for new designs. The original part's Obsolete status makes it unsuitable for new applications.

Q: Are there any firmware or software compatibility concerns?

A: No. Both parts share identical core processor architecture, memory configuration, and peripheral sets. Existing firmware developed for the T89C51CC01CA-SLSIM will execute without modification on the AT89C51CC01CA-SLSUM.

Q: What is the supply voltage compatibility?

A: Both parts operate within the identical supply voltage range of 3V to 5.5V, ensuring direct electrical compatibility in existing circuit designs.