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OneNAND™
SAMSUNG OneNAND is a highly reliable embedded memory targeted for both consumer electronic, and next generation mobile phone market. With SAMSUNG's accumulated NAND flash technologies over the last decade, SAMSUNG designs an ideal single memory chip based on NAND architecture integrating SRAM buffers and logic interface.
SAMSUNG OneNAND takes both advantages from high-speed data read function of NOR flash and the advanced data storage function of NAND flash.
what is OneNAND?
NAND Core + NOR Interface Logic + SRAM Buffer
comparison of OneNAND characteristics among SAMSUNG Flash Products
| OneNAND | NAND(SLC) | NOR(MLC) | ||
|---|---|---|---|---|
| Product Nature |
Bootability | 1KB XIP | N.A | XIP |
| Bad Block | YES | YES | NO | |
| P/E Cycle | 100K | 100K | NONE | |
| Single Bit Error | NO | YES | NO | |
| Erase Size | 128KB | 128KB | Varies | |
| Read / Write Size | 2KB | 2KB | Byte | |
| Performance | Read Bandwidth | 108MB/s | 17MB/s | 108MB/s |
| Write Bandwidth | 9.3MB/s | 6.8MB/s | 0.14MB/s | |
| Erase Bandwidth (@ MBE) |
64MB/s (2.1GB/s) | 64MB/s | 0.11MB/s | |
| Effectiveness | Chip Size | 1X | 1X | 1.3X |
| Storage | Code/Data | Data | Code | |
OneNAND application architecture examples
Case 1 : Mobile Phone
- Using OneNAND as Unified Storage to store Code and Data offers the most cost effective solution for your system
- Replace OneNAND in place of Bundle card to reduce BOM cost up to 28%
- OneNAND platform change becomes easy for existing CPU's NOR I/F
- Diversified application requires higher density memory.
- OneNAND offers more density without losing shadowing performance at lower price.
| memory | standby current (typ) |
|---|---|
| DRAM 512Mb | 200uA |
| NOR 16Mb | 10uA |
| Total | 210uA |
| memory | standby current (typ) |
|---|---|
| DRAM 64Mb | 90uA |
| OneNAND 512Mb |
10uA |
| Total | 100uA |
OneNAND feature highlight
| cost effective |
Large Block Structure (128KB block for 512Mb/1Gb, 64KB Block for 256Mb/128Mb) |
|---|---|
| enhanced performance |
x16 Synchronous Burst Read / Write (54MHz/66MHz/83MHz) Dual Buffering / Cache Read / Block ReadMulti Block Erase (Up to 64Blocks) |
| reliablity | Embedded Automatic 1 bit ECC, 2 bit EDC |
| smart security |
Normal OTP Block(128KB) and User Controlled 128KB OTP Block (1st Block OTP) |
| fixed pin count | 16 Address Pins Regardless of Density Increase |
| data protection | Three Stages of Data Protection (Lock/Unlock/Lock-Tight) |
| automatic boot up | Internal Boot Loader with 1KB XIP at Power Up |
| wide selection of products |
FBGA(LF) / TSOP Bottom Boot Multiplexed Interface(Data-Address) available Operating Voltage 1.8V/3.3V(128Mb~512Mb) Operating Voltage 1.8V only(1Gb~) |
