Micron Technology Inc. JS28F
JS28F variants from Micron Technology Inc.
JS28F Overview
What changes between part numbers, and what to check before you lock the BOM — general-purpose circuits.
JS28F is a Micron Technology Inc. order-code family — not a single orderable MPN. This page lists 2 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.
Package: 56-TFSOP (0.724", 18.40mm Width) | Mounting Type: Surface Mount | Supply Voltage: 2.7V ~ 3.6V | Memory Size: 128Mb (16M x 8, 8M x 16) | Operating Temperature: -40°C ~ 85°C (TA) Other listed variants describe: Package: 56-TFSOP (0.724", 18.40mm Width) | Mounting Type: Surface Mount | Supply Voltage: 2.3V ~ 3.6V | Memory Size: 256Mb (16M x 16) | Operating Temperature: -40°C ~ 85°C (TC).
Across listed variants, watch these parameters: packages: 56-TFSOP (0.724", 18.40mm Width).
Suffix examples in this family: 128J3F75A, 256P33BFE. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.
Example MPNs: JS28F128J3F75A, JS28F256P33BFE.
Key Features
- Footprint / package: 56-TFSOP (0.724", 18.40mm Width)Single package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 2 distinct suffix patternsExamples: 128J3F75A, 256P33BFE. Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- general-purpose circuits — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 2 JS28F part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| JS28F128J3F75A | Package: 56-TFSOP (0.724", 18.40mm Width) | Mounting Type: Surface Mount | Supply Voltage: 2.7V ~ 3.6V | Memory Size: 128Mb (16M x 8, 8M x 16) | Operating Temperature: -40°C ~ 85°C (TA) | 56-TFSOP (0.724", 18.40mm Width) | Micron Technology Inc. | Active | Compliant | In Stock | |
| JS28F256P33BFE | Package: 56-TFSOP (0.724", 18.40mm Width) | Mounting Type: Surface Mount | Supply Voltage: 2.3V ~ 3.6V | Memory Size: 256Mb (16M x 16) | Operating Temperature: -40°C ~ 85°C (TC) | 56-TFSOP (0.724", 18.40mm Width) | Micron Technology Inc. | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on JS28F map to package, grade, and reel options.
JS28F uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.
Suffixes seen here: 128J3F75A, 256P33BFE.
Full MPN examples: JS28F128J3F75A, JS28F256P33BFE.
Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.
How to Choose the Right JS28F Variant
Match the footprint first
Packages here: 56-TFSOP (0.724", 18.40mm Width). Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For JS28F, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "JS28F" — include the full suffix (e.g. 128J3F75A, 256P33BFE). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for JS28F product family
Identity
Variant Parameters
Source JS28F with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 2 ordering variants from Micron Technology Inc.. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the JS28F product family.