# Resources β€” Cross-Reference Data, Guides & Market Notes πŸ“ Zhongshan HQ Β· Memory & Power Import Substitution Β· Taiwan Engineering Β· US Sales Support πŸ“§ sales@hgchips.net Β |Β  ☎ +86 760 8992 4799 Β |Β  πŸ’¬ WhatsApp: +852 9298 5589 (management) / +852 9298 5590 (sales) Β |Β  πŸ•‘ Quote reply < 24h Home / Resources # Engineer-ready tools, guides & market notes Free cross-reference data, part-number decoders and practical buying notes β€” built for sourcing teams that buy DRAM and power ICs in volume. The library maps original part numbers to HGCHIPS equivalents across DDR3 (1.35 V / 1.5 V, VFBGA-96), DDR4 (1.2 V, FBGA-78/96) and LPDDR4X (up to 4266 MT/s, VFBGA-200), and explains how each field β€” density, organization (for example 512Mx16), speed grade, package and temperature range β€” has to match before you qualify a replacement. Free downloads ## Cross-reference data you can load into your BOM tool 🧠 ### Memory cross-reference table 245 DDR3 / DDR4 / LPDDR4(X) HG parts with density, organization, speed, voltage, package and temperature grade β€” mapped against Samsung / SK Hynix / Micron / Nanya originals. [Download CSV](https://hgchips.net/data/hgchips_memory_cross_reference.csv) [Browse online](https://hgchips.net/cross-reference.html) ⚑ ### ADI ΞΌModule compatible table 31 HG-series modules mapped to ADI LTM46xx / LTM80xx / LTM36xx part numbers β€” for power design teams evaluating drop-in options. [Download CSV](https://hgchips.net/data/hgchips_adi_cross_reference.csv) [View family](https://hgchips.net/product-adi.html) πŸ“˜ ### Company profile (PDF) Testing flow, cross-reference coverage, footprint and supply capabilities β€” ready to share with your sourcing or engineering team. [Request by email](https://hgchips.net/contact.html) Guides & market notes ### Fields that have to match before a replacement is qualified | Field | Example | Why it has to match | | --- | --- | --- | | Density | 8 Gb | The die capacity your BOM and controller expect. | | Organization | 512Mx16 | Internal arrangement of the die; a different organization changes row and bank addressing. | | Speed grade | DDR4-2666 | Must be equal to or faster than the original part at the same clock. | | Voltage | 1.35 V / 1.5 V / 1.2 V | DDR3L, DDR3 and DDR4 are not interchangeable at the rail level. | | Package | VFBGA-96 / FBGA-78/96 / VFBGA-200 | Footprint and ball-out must be identical for a true drop-in. | | Temperature range | Commercial 0 to +95 Β°C / Industrial βˆ’40 to +95 Β°C | Sets the operating envelope; industrial parts are required where the board runs hot or cold. | ## From our engineering desk πŸ“Œ Supply Strategy ### DDR3 is not dead: securing supply for long-lifecycle industrial designs Why mature DDR3 stays in industrial BOMs years after OEM allocation ends β€” and how to qualify a stable second source. Read guide β†’ πŸ” Reference ### How to read a DRAM part number β€” Samsung / SK Hynix / Micron / Nanya decoder Density, org, speed grade, voltage and temperature decoded line by line for the four mainstream memory vendors. Read guide β†’ ⚑ Power Design ### ADI LTM4628 vs HG4628: what to verify before a drop-in power switch Electrical, thermal and mechanical checkpoints β€” what our engineers compare before we call a module "compatible". Read guide β†’ πŸ”¬ Technical ### DDR4 3200 C-die vs D-die: what changed and why cross-reference matters Die revisions change more than the marking. A practical look at why identical part numbers are not always identical. Read guide β†’ βœ… Procurement ### The buyer's checklist for testing alternative memory ICs Visual, electrical, functional, burn-in β€” a repeatable acceptance flow your IQC team can adopt for alternative parts. Read guide β†’ πŸ“ˆ Market Outlook ### eMMC/eMCP supply outlook and when to plan a second source Supply signals and lead-time trends for embedded storage β€” plus what to prepare before qualifying an alternative. Read guide β†’ 🌑️ Technical ### Industrial temperature DDR3 (-40 to +95 C): what we hold and how it maps Two industrial-grade DDR3 options, their Nanya originals, the part-number convention in our table, and the checks to run before qualifying. Read guide β†’ πŸ“¦ Procurement ### Samples and lead times: how a first order actually runs Sample quantity, what ships with a lot, 48h dispatch on stock lines, and how non-stock grades are quoted instead of promised. Read guide β†’ All eight guides are live. β€” meanwhile, you can [search the cross-reference data](https://hgchips.net/cross-reference.html) or [ask our engineers](https://hgchips.net/contact.html) the specific question directly. ## Have a specific part number in mind? Check compatibility now, or send it to us and get a datasheet-level answer within 24 hours. Check Part Number Send RFQ ### HGCHIPS A Zhongshan (China) based semiconductor supply partner for import substitution β€” PIN2PIN replacement for Samsung, SK Hynix, Micron, Nanya memory and ADI Β΅Module power parts that are on allocation, NRND or EOL, with engineering support from Taiwan. ### Products DDR3 SDRAM DDR4 SDRAM LPDDR4 / LPDDR4X ADI ΞΌModule Compatible Original Memory Stock Hot Stock β€” DDR3 / DDR4 Lines Hot Stock β€” ADI Β΅Module Lines Hot Stock β€” Smart-Glasses BOM Cross Reference ### Company About Us Quality & Testing Resources Datasheets Contact ### Contact βœ‰ sales@hgchips.net ☎ +86 760 8992 4799 (Zhongshan HQ) πŸ“± +852 9298 5589 (24h mobile) πŸ’¬ WhatsApp β€” management +852 9298 5589 πŸ’¬ WhatsApp β€” sales +852 9298 5590 πŸ“ Room 301-319, 3/F, Longde Building, Wuguishan Street, Zhongshan 528400, Guangdong, China 🧭 Memory & Power Import Substitution πŸ‡ΊπŸ‡Έ US Sales Support Β© 2026 Zhongshan Huagong Technology Co., Ltd. (HGCHIPS). All third-party brand names and part numbers (Samsung, SK Hynix, Micron, Nanya, ADI, etc.) are the property of their respective owners and are used solely to describe compatibility. HGCHIPS parts are independently engineered replacements and are not manufactured or endorsed by the original brands. Stock levels, lead times and pricing shown on this site are indicative and confirmed at quotation. Last updated: 2026-09-21 Β· [Sitemap](https://hgchips.net/sitemap.xml) --- Source: https://hgchips.net/resources.html Last updated: 2026-09-26