Asynchronous SRAM
Asynchronous SRAM
Asynchronous SRAM(Asynchronous Static Random Access Memory) is a type of semiconductor memory that uses bistable latching circuitry (flip-flop) to store each bit.Asynchronous SRAM exhibits data remanence,but it is still volatile in the conventional sense that data is eventually lost when the memory is not powered.
The term static differentiates Asynchronous SRAM from DRAM (Dynamic Random Access Memory) which must be periodically refreshed.Asynchronous SRAM is faster and more expensive than DRAM; it is typically used for CPU cache while DRAM is used for a computer's main memory.
Low Power
| Density | Org. | Vcc(V) | Speed(ns) | Package | Part Number |
|---|---|---|---|---|---|
| 1Mbit | 128K x 8 | 3.3 | 45/55 | 32sTSOP1/32TSOP1/32SOP | VTI501NB08 |
| 1Mbit | 128K x 8 | 5 | 45/55 | 32sTSOP1/32TSOP1/32SOP | VTI501HB08 |
| 1Mbit | 64K x 16 | 3.3 | 45/55 | 44TSOP2/48BGA | VTI501NL16 |
| 1Mbit | 64K x 16 | 5 | 45/55 | 44TSOP2/48BGA | VTI501HL16 |
| 2Mbit | 128K x 16 | 3.3 | 45/55 | 44TSOP2/48BGA | VTI502NL16 |
| 2Mbit | 128K x 16 | 3.3 | 45/55 | 48BGA | VTI502NB16 |
| 2Mbit | 128K x 16 | 5 | 45/55 | 44TSOP2 | VTI502HL16 |
| 2Mbit | 256K x 8 | 3.3 | 45/55 | 32sTSOP1/32TSOP1/32TSOP2/32SOP | VTI502NB08 |
| 2Mbit | 256K x 8 | 5 | 45/55 | 32sTSOP1/32TSOP1/32TSOP2/32SOP | VTI502HB08 |
| 2Mbit | 256K x 8 | 3.3 | 45/55 | 36BGA | VTI502NL08 |
| 4Mbit | 256K x 16 | 5 | 45/55 | 44TSOP2 | VTI504HB16 |
| 4Mbit | 256K x 16 | 5 | 45/55 | 44TSOP2 | VTI504HL16 |
| 4Mbit | 256K x 16 | 3.3 | 45/55 | 44TSOP2/48BGA | VTI504NL16 |
| 4Mbit | 256K x 16 | 3.3 | 45/55 | 44TSOP2/48BGA | VTI504NB16 |
| 4Mbit | 512K x 8 | 3.3 | 45/55 | 32sTSOP1/32TSOP1/32TSOP2/32SOP | VTI504NL08 |
| 4Mbit | 512K x 8 | 5 | 45/55 | 32sTSOP1/32TSOP1/32TSOP2/32SOP | VTI504HL08 |
| 8Mbit | 512K x 16 | 5 | 45/55 | 48BGA | VTI508HB16 |
| 8Mbit | 512K x 16 | 5 | 45/55 | 44TSOP2/48BGA | VTI508HL16 |
| 8Mbit | 512K x 16 | 3.3 | 45/55 | 44TSOP2/48BGA | VTI508NB16 |
| 8Mbit | 512K x 16 | 3.3 | 45/55 | 44TSOP2/48BGA | VTI508NL16 |
| 8Mbit | 1M x 8 | 5 | 45/55 | 44TSOP2/48BGA | VTI508HB08 |
| 8Mbit | 1M x 8 | 3.3 | 45/55 | 44TSOP2/48BGA | VTI508NB08 |
| 16Mbit | 1M x 16 | 3.3 | 45/55 | 48BGA | VTI516NB16 |
Fast SRAM
| Density | Org. | Vcc(V) | Speed(ns) | Package | Part Number |
|---|---|---|---|---|---|
| 1Mbit | 64K x 16 | 1.8 | 8/10/12 | 44TSOP2 | VTI501LF16VM |
| 1Mbit | 64K x 16 | 1.8 | 8/10/12 | 48BGA | VTI501LF16LM |
| 1Mbit | 64K x 16 | 3.3 | 8/10 | 44TSOP2 | VTI501NF16VM |
| 1Mbit | 64K x 16 | 3.3 | 8/10 | 48BGA | VTI501NF16LM |
| 1Mbit | 64K x 16 | 5 | 10 | 44TSOP2 | VTI501HF16VM |
| 1Mbit | 64K x 16 | 5 | 10 | 48BGA | VTI501HF16LM |
| 1Mbit | 128K x 8 | 1.8 | 8/10/12 | 32sTSOP1 | VTI501LF08WM |
| 1Mbit | 128K x 8 | 1.8 | 8/10/12 | 36BGA | VTI501LF08NM |
| 1Mbit | 128K x 8 | 3.3 | 8/10 | 32sTSOP1 | VTI501NF08WM |
| 1Mbit | 128K x 8 | 3.3 | 8/10 | 36BGA | VTI501NF08NM |
| 1Mbit | 128K x 8 | 5 | 10 | 32sTSOP1 | VTI501HF08WM |
| 1Mbit | 128K x 8 | 5 | 10 | 36BGA | VTI501HF08NM |
| 2Mbit | 256K x 8 | 1.8 | 8/10/12 | 44TSOP2 | VTI502LF08VM |
| 2Mbit | 256K x 8 | 1.8 | 8/10/12 | 36BGA | VTI502LF08NM |
| 2Mbit | 256K x 8 | 3.3 | 8/10 | 44TSOP2 | VTI502NF08VM |
| 2Mbit | 256K x 8 | 3.3 | 8/10 | 36BGA | VTI502NF08NM |
| 2Mbit | 256K x 8 | 5 | 10 | 44TSOP2 | VTI502HF08VM |
| 2Mbit | 256K x 8 | 5 | 10 | 36BGA | VTI502HF08NM |
| 2Mbit | 128K x 16 | 1.8 | 8/10/12 | 44TSOP2 | VTI502LF16VM |
| 2Mbit | 128K x 16 | 1.8 | 8/10/12 | 48BGA | VTI502LF16LM |
| 2Mbit | 128K x 16 | 3.3 | 8/10 | 44TSOP2 | VTI502NF16VM |
| 2Mbit | 128K x 16 | 3.3 | 8/10 | 48BGA | VTI502NF16LM |
| 2Mbit | 128K x 16 | 5 | 10 | 44TSOP2 | VTI502HF16VM |
| 2Mbit | 128K x 16 | 5 | 10 | 48BGA | VTI502HF16LM |
| 4Mbit | 256K x 16 | 1.8 | 8/10/12 | 44TSOP2 | VTI504LF16VM |
| 4Mbit | 256K x 16 | 1.8 | 8/10/12 | 48BGA | VTI504LF16LM |
| 4Mbit | 256K x 16 | 3.3 | 8/10 | 44TSOP2 | VTI504NF16VM |
| 4Mbit | 256K x 16 | 3.3 | 8/10 | 48BGA | VTI504NF16LM |
| 4Mbit | 256K x 16 | 5 | 10 | 44TSOP2 | VTI504HF16VM |
| 4Mbit | 256K x 16 | 5 | 10 | 48BGA | VTI504HF16LM |
| 4Mbit | 512K x 8 | 1.8 | 8/10/12 | 44TSOP2 | VTI504LF08VM |
| 4Mbit | 512K x 8 | 1.8 | 8/10/12 | 36BGA | VTI504LF08NM |
| 4Mbit | 512K x 8 | 3.3 | 8/10 | 44TSOP2 | VTI504NF08VM |
| 4Mbit | 512K x 8 | 3.3 | 8/10 | 36BGA | VTI504NF08NM |
| 4Mbit | 512K x 8 | 5 | 10 | 44TSOP2 | VTI504HF08VM |
| 4Mbit | 512K x 8 | 5 | 10 | 36BGA | VTI504HF08NM |
| 8Mbit | 512K x 16 | 1.8 | 8/10/12 | 44TSOP2 | VTI508LF16VM |
| 8Mbit | 512K x 16 | 1.8 | 8/10/12 | 48BGA | VTI508LF16LM |
| 8Mbit | 512K x 16 | 3.3 | 8/10 | 44TSOP2 | VTI508NF16VM |
| 8Mbit | 512K x 16 | 3.3 | 8/10 | 48BGA | VTI508NF16LM |
| 8Mbit | 512K x 16 | 5 | 10 | 44TSOP2 | VTI508HF16VM |
| 8Mbit | 512K x 16 | 5 | 10 | 48BGA | VTI508HF16LM |
| 8Mbit | 1M x 8 | 1.8 | 8/10/12 | 44TSOP2 | VTI508LF08VM |
| 8Mbit | 1M x 8 | 1.8 | 8/10/12 | 48BGA | VTI508LF08LM |
| 8Mbit | 1M x 8 | 3.3 | 8/10 | 44TSOP2 | VTI508NF08VM |
| 8Mbit | 1M x 8 | 3.3 | 8/10 | 48BGA | VTI508NF08LM |
| 8Mbit | 1M x 8 | 5 | 10 | 44TSOP2 | VTI508HF08VM |
| 8Mbit | 1M x 8 | 5 | 10 | 48BGA | VTI508HF08LM |
| 16Mbit | 1M x 16 | 1.8 | 8/10/12 | 48TSOP1 | VTI516LF16TM |
| 16Mbit | 1M x 16 | 1.8 | 8/10/12 | 48BGA | VTI516LF16LM |
| 16Mbit | 1M x 16 | 3.3 | 8/10 | 48TSOP1 | VTI516NF16TM |
| 16Mbit | 1M x 16 | 3.3 | 8/10 | 48BGA | VTI516NF16LM |
| 16Mbit | 1M x 16 | 5 | 10 | 48TSOP1 | VTI516HF16TM |
| 16Mbit | 1M x 16 | 5 | 10 | 48BGA | VTI516HF16LM |
| 16Mbit | 2M x 8 | 1.8 | 8/10/12 | 44TSOP2 | VTI516LF08VM |
| 16Mbit | 2M x 8 | 1.8 | 8/10/12 | 48BGA | VTI516LF08LM |
| 16Mbit | 2M x 8 | 3.3 | 8/10 | 44TSOP2 | VTI516NF08VM |
| 16Mbit | 2M x 8 | 3.3 | 8/10 | 48BGA | VTI516NF08LM |
| 16Mbit | 2M x 8 | 5 | 10 | 44TSOP2 | VTI516HF08VM |
| 16Mbit | 2M x 8 | 5 | 10 | 48BGA | VTI516HF08LM |
| 32Mbit | 2M x 16 | 1.8 | 8/10 | 48TSOP1 | VTI532LF16TM |
| 32Mbit | 2M x 16 | 1.8 | 8/10 | 48BGA | VTI532LF16LM |
| 32Mbit | 2M x 16 | 3.3 | 8/10 | 48TSOP1 | VTI532NF16TM |
| 32Mbit | 2M x 16 | 3.3 | 8/10 | 48BGA | VTI532NF16LM |
| 32Mbit | 4M x 8 | 1.8 | 8/10 | 48TSOP1 | VTI532LF08TM |
| 32Mbit | 4M x 8 | 1.8 | 8/10 | 48BGA | VTI532LF08LM |
| 32Mbit | 4M x 8 | 3.3 | 8/10 | 48TSOP1 | VTI532NF08TM |
| 32Mbit | 4M x 8 | 3.3 | 8/10 | 48BGA | VTI532NF08LM |
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