Equivalent & Substitute Parts Reference: 23K256T-E/ST

Part Overview

The Microchip Technology 23K256T-E/ST is a volatile SRAM memory IC with a capacity of 256Kbit, supporting a SPI interface and a clock frequency of up to 20 MHz. This 8-TSSOP (0.173", 4.40mm width) device is suitable for surface mount applications and operates within a temperature range of -40°C to 125°C. It is commonly used in embedded systems and other electronic designs requiring fast, non-permanent memory storage. Ensuring supply chain continuity and addressing inventory challenges may require the identification of functionally equivalent or substitute parts within the same category and parameter set.

Substiute Parts

23K256T-E/ST

Microchip TechnologyIn Stock: 212723K256T-E/ST Datasheet

Current PartRFQ

23K256-E/ST

Microchip TechnologyIn Stock: 143423K256-E/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute SRAM memory ICs are selected strictly based on matching key electrical and mechanical parameters as provided. For the 23K256T-E/ST, the allowable substitute must have identical values for the following: manufacturer, memory size (256Kbit), memory organization (32K x 8), SPI interface, clock frequency (20 MHz), voltage range (2.7V ~ 3.6V), operating temperature range (-40°C ~ 125°C), mounting type, package, RoHS compliance, MSL, and regulatory information. Only parts matching all listed parameters qualify as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the 23K256T-E/ST and 23K256-E/ST from Microchip Technology are listed with Active status, ROHS3 compliance, REACH unaffected, MSL 1 (unlimited), ECCN EAR99, and matching key parameters. Selection between the parts is determined by the preferred packaging format (Tape & Reel vs. Tube), with both parts suitable for compliance and regulatory requirements.

Frequently Asked Questions (FAQ)

Q1: What are the key criteria for selecting substitute SRAM memory ICs for 23K256T-E/ST?
A1: Substitutes must match all provided parameters including manufacturer, memory size, organization, interface, supply voltage, operating temperature, package/case, RoHS and REACH compliance, MSL, and product status.

Q2: Are the 23K256T-E/ST and 23K256-E/ST fully interchangeable?
A2: Based on the input parameters, the two parts are functionally equivalent, differing only in packaging method (Tape & Reel vs. Tube).

Q3: Does the package orientation affect the choice of a substitute?
A3: For surface mount applications, both are supplied in 8-TSSOP with the same dimensions. The main consideration is the packaging format, relevant for automated assembly processes.

Q4: Do both parts meet international compliance standards?
A4: Both 23K256T-E/ST and 23K256-E/ST are ROHS3 compliant and REACH unaffected, with MSL 1 (Unlimited).

Q5: Is there a difference in regulatory status between the main and substitute part?
A5: Both parts share ECCN EAR99 and HTSUS 8542.32.0041, indicating identical regulatory classification.