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UtRAM(PSRAM)
The world is moving into the mobile multi-media era and therefore the mobile handsets need bigger & faster memory capacity to handle the multi-media data. SAMSUNG's UtRAM products are designed to meet all the request from the various customers who want to cope with the fast growing mobile market. UtRAM is the perfect solution for the mobile market with its low cost, high density and high performance feature.
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UtRAM characteristics comparison
 |
32Mb | 64Mb | 128Mb | 256Mb |
|---|---|---|---|---|
| mode |
1.asynch 4 page read / asynch write 2.synch read / asynch write 3.synch read / synch write |
|||
| operating voltage | 1.8 V , 3.0 V | |||
| random access time |
70ns | |||
| page read time | 20ns | |||
| page depth | 4 words | |||
| frequency | 80Mhz(max) | 104Mhz(max) | 104Mhz(max) | |
| burst length | 4/ 8/ 16 | 4/ 8/ 16/ full (256) |
4/ 8/ 16/ 32 or continuous |
4/ 8/ 16/ 32 or continuous |
| burst latency type | fixed only | fixed & variable | fixed & variable | |
| mode register set | software | pin & software | ||
| burst sequence | wrap, linear | wrap, linear, Interleave |
wrap, linear, no-wrap | wrap, linear, no-wrap |
