Equivalent & Substitute Parts for 93LC86AT-I/ST

Part Overview

The 93LC86AT-I/ST is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol with 3 MHz clock frequency. This non-volatile memory device is designed for applications requiring persistent data storage in embedded systems and industrial equipment. The part is currently in active production status with 784 units available in new original condition. Substitute parts are identified when equivalent electrical specifications, memory capacity, interface protocol, and physical packaging are maintained across the product line.

Substiute Parts

93LC86AT-I/ST

Microchip TechnologyIn Stock: 82993LC86AT-I/ST Datasheet

Current PartRFQ

93LC86CT-I/ST

Microchip TechnologyIn Stock: 406393LC86CT-I/ST Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 93LC86CT-I/ST qualifies as a direct substitute for the 93LC86AT-I/ST based on the following substitution criteria:

Electrical Equivalence: Both parts maintain identical memory capacity (16Kbit), memory organization (2K x 8), Microwire interface protocol, 3 MHz clock frequency, 5ms write cycle time, and supply voltage range (2.5V ~ 5.5V). Operating temperature range is identical at -40°C ~ 85°C.

Physical Compatibility: Both devices utilize the same 8-TSSOP surface mount package with 0.173" width and 4.40mm dimensions, ensuring PCB footprint compatibility.

Regulatory Compliance: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL rating of 1 (Unlimited), confirming equivalent environmental and handling requirements.

Base Product Alignment: Both parts share the same base product number 93LC86, confirming they belong to the same product family with equivalent core functionality.

Parameter Comparison

Engineering Selection Recommendations

Both the 93LC86AT-I/ST and 93LC86CT-I/ST are active production parts from Microchip Technology with full ROHS3 compliance and identical regulatory certifications. The primary distinction is packaging format: the main part is supplied in standard packaging, while the substitute is supplied in Tape & Reel format. Selection between these parts should be based on procurement requirements and assembly line compatibility. The 93LC86CT-I/ST offers higher inventory availability (4034 units) compared to the main part (784 units), making it suitable for high-volume production scenarios where Tape & Reel packaging is compatible with automated assembly equipment.

Frequently Asked Questions (FAQ)

Q: Can the 93LC86CT-I/ST replace the 93LC86AT-I/ST in existing designs? A: Yes. Both parts are electrically and mechanically equivalent, sharing identical memory specifications, Microwire interface, clock frequency, voltage range, and temperature operating range. PCB footprint compatibility is confirmed through identical 8-TSSOP packaging.

Q: What is the difference between these two part numbers? A: The primary difference is packaging format. The 93LC86AT-I/ST uses standard packaging, while the 93LC86CT-I/ST is supplied in Tape & Reel format. This distinction affects procurement and assembly processes but does not impact electrical performance or functionality.

Q: Are there memory organization differences between these parts? A: The main part specifies 2K x 8 organization. The substitute lists both 2K x 8 and 1K x 16 organization options. Both configurations deliver the same 16Kbit total capacity and are compatible with Microwire interface protocol.

Q: Do these parts have identical compliance certifications? A: Yes. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL rating of 1 (Unlimited), confirming equivalent environmental and handling requirements for manufacturing and storage.

Q: Which part should be selected for new designs? A: Selection depends on procurement volume and assembly equipment compatibility. For high-volume production with automated Tape & Reel compatible equipment, the 93LC86CT-I/ST is appropriate. For standard packaging requirements, the 93LC86AT-I/ST is suitable. Both parts are active production items with equivalent technical specifications.