23K640T-E/SN SRAM Memory IC Equivalent & Substitute Parts

Part Overview

The 23K640T-E/SN is a 64Kbit Serial Peripheral Interface (SPI) SRAM memory integrated circuit manufactured by Microchip Technology. This volatile memory device operates at 20 MHz with a supply voltage range of 2.7V to 3.6V and is housed in an 8-SOIC surface mount package. The device maintains Active product status and is ROHS3 compliant, making it suitable for applications requiring low-power, high-speed serial memory access. Equivalent and substitute parts are identified based on matching electrical specifications, memory organization, interface protocol, and package configuration to ensure direct functional interchangeability.

Substiute Parts

23K640T-E/SN

Microchip TechnologyIn Stock: 248023K640T-E/SN Datasheet

Current PartRFQ

23K640-E/SN

Microchip TechnologyIn Stock: 121923K640-E/SN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 23K640T-E/SN is determined by strict equivalence across the following critical parameters:

• Memory capacity and organization (64Kbit, 8K x 8 configuration)
• Serial interface protocol (SPI)
• Operating frequency (20 MHz)
• Supply voltage compatibility (2.7V ~ 3.6V)
• Package type and pin configuration (8-SOIC)
• Temperature operating range (-40°C ~ 125°C)
• Compliance certifications (ROHS3)

The substitute part 23K640-E/SN meets all these criteria and differs only in packaging format (Tube versus standard packaging), which does not affect electrical or functional performance.

Parameter Comparison

Engineering Selection Recommendations

Both the 23K640T-E/SN and 23K640-E/SN are Active products from Microchip Technology with identical electrical specifications and functional capabilities. Selection between these parts should be based on packaging and supply chain requirements. The 23K640T-E/SN is available in standard packaging with 2400 units in stock, while the 23K640-E/SN is supplied in Tube packaging with 1135 units in stock. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The choice between these substitutes does not impact circuit performance or reliability.

Frequently Asked Questions (FAQ)

Q: Can the 23K640-E/SN directly replace the 23K640T-E/SN in existing designs?

A: Yes. Both parts are electrically and functionally identical. They share the same memory capacity, SPI interface, operating frequency, voltage range, temperature range, and 8-SOIC package configuration. The only difference is the packaging format (Tube versus standard), which does not affect circuit operation.

Q: What determines compatibility between these SRAM memory parts?

A: Compatibility is determined by matching memory size (64Kbit), memory organization (8K x 8), interface type (SPI), clock frequency (20 MHz), supply voltage range (2.7V ~ 3.6V), operating temperature range (-40°C ~ 125°C), and physical package (8-SOIC). All these parameters are identical between the main part and substitute.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications. They meet the same regulatory and environmental standards.

Q: Does packaging format affect the electrical performance of these SRAM ICs?

A: No. Packaging format (Tube versus standard) is a supply and handling specification only. It does not alter electrical characteristics, memory performance, interface behavior, or reliability of the integrated circuit.

Q: What is the base product number for these parts?

A: The base product number is 23K640. Both the 23K640T-E/SN and 23K640-E/SN are variants of this base product with identical core specifications.