NAND Flash Selection & Supply Assessment Guide
NAND Flash comes as SLC / MLC / TLC with parallel or SPI interfaces, widely used for boot and data storage in industrial, networking and embedded devices. HGCHIPS produces 126 DRAM parts (DDR3 / DDR4 / LPDDR4·LPDDR4X); for NAND projects send your requirements and we will run a supply assessment against capacity, interface, temperature and endurance.
Selection Notes
| Item | Notes |
|---|---|
| Cell type | SLC offers the highest endurance for frequent writes and industrial use; TLC lowers cost for large-capacity or low-write workloads. |
| Interface | SPI NAND needs fewer pins and lowers cost; parallel NAND offers higher bandwidth at the cost of more I/O. |
| Bad blocks and ECC | Match the part to your controller ECC capability; confirm bad-block strategy and spare area definition. |
| Temperature and endurance | Industrial temperature range and high P/E cycles are essential for industrial and power-metering designs. |
HGCHIPS Production Range (drop-in available)
| Family | Production parts | Density | Package | Reference |
|---|---|---|---|---|
| DDR3 SDRAM | 57 | 1Gb–8Gb | VFBGA-96 | DDR3 list |
| DDR4 SDRAM | 30 | 4Gb–32Gb | FBGA-78/96 | DDR4 list |
| LPDDR4 / LPDDR4X | 39 | 4Gb–128Gb | VFBGA-200 | LPDDR4/4X list |
| ADI uModule power modules | 30 | 2A–100A | LGA / BGA | ADI list |
Memory replacement inside the same BOM
This family is outside our production range, but industrial boards, set-top boxes, networking and surveillance devices that use it almost always carry DDR3 / DDR4 / LPDDR4 as well — and those we replace drop-in:
| Family | Production parts | Density | Package | Reference |
|---|---|---|---|---|
| DDR3 SDRAM | 57 | 1Gb–8Gb | VFBGA-96 | DDR3 list |
| DDR4 SDRAM | 30 | 4Gb–32Gb | FBGA-78/96 | DDR4 list |
| LPDDR4 / LPDDR4X | 39 | 4Gb–128Gb | VFBGA-200 | LPDDR4/4X list |
For the eMMC / NAND part itself, email the full part number, capacity, interface version, temperature grade and annual volume to info@hgtech.cc and we will run a supply assessment.
Six-step replacement self-check
- Lock the full part number — density, organization, speed, voltage and temperature suffix are all required.
- Compare pin-out and package — pin count and ball map must match, otherwise the board has to change.
- Compare timing and registers — tRCD / tRP / CL and mode register settings must fall inside the platform envelope.
- Confirm the grade — industrial needs -40~85C evidence, automotive needs AEC-Q100 documentation.
- Validate in small quantity — 10–50 pcs with burn-in and thermal cycling before ramp-up.
- Lock the supply — MOQ, lead time and lot consistency, with the second source written into the BOM.
Why replacements fail
- Matching density but not organization (x8 vs x16) — rank count no longer matches the controller.
- Mixing DDR3L 1.35V with DDR3 1.5V — retention and long-term reliability risk.
- Ignoring the temperature suffix — commercial parts fail cold start at -40C.
- Ignoring SPD / PMIC differences when swapping components (DDR4 / DDR5).
- Not validating firmware and controller compatibility (most common with eMMC / NAND).
How to Submit a Requirement
- Email the full original part number (with suffix), annual volume and platform details to info@hgtech.cc.
- Or use the Model Finder to check production parts first.
- Our FAE team compares density, organization, speed, voltage, package and temperature and replies with a feasible option and lead time.
Contact: info@hgtech.cc · +86 760 8992 4799
Frequently asked questions
NAND Flash Selection and Supply — can it drop in without board changes?
No board changes. NAND Flash Selection and Supply is designed as a pin-to-pin drop-in: package and pin-out are checked field by field against the original datasheet, so it fits the existing PCB and firmware. Typical use is second-sourcing, EOL cover and allocation shortages.
How do I use the selection table?
Find your original part number, then check density, organization, speed grade, voltage, package and temperature range against your BOM. Any field that differs is stated on the page — we do not claim the parts are identical.
NAND Flash Selection and Supply — samples and lead time?
Samples from 10 pcs, credited against the first order. In-stock items ship from Shenzhen within 48 hours; long-lead projects can be price-locked. Parts are 100% inspected before shipment and batch test data is available for IQC.
How do I request a quote for NAND Flash Selection and Supply ?
Send your target part number, monthly usage and target price to info@hgtech.cc or call +86 760 8992 4799 — we reply within 24 business hours (same day for stock parts).
Page last updated: 2026-09-21
在线客服
在线客服