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      Static random-access memory (static RAM or SRAM) is a type of semiconductor memory that uses bistable latching circuitry (flip-flop) to store each bit. SRAM exhibits data remanence,[1] but it is still volatile in the conventional sense that data is eventually lost when the memory is not powered.The term static differentiates SRAM from DRAM (dynamic random-access memory) which must be periodically refreshed. 
JSCJeju Semiconductor is one of the world largest SRAM solutions provider for mobile applications
Since Jeju Semiconductor made a debut to the SRAM (Static Random Access Memory) market in 2001 with 4M SRAM, Jeju Semiconductor continued implementing full lineup of low power SRAM products through 1M, 2M, 4M to 8M SRAM.
 
Density Org. Part number Option Speed Package Type Voltage Download
16Mb x16 EM6168FV16B-45LF Dual CS 45ns BGA 48B 8x10x1.0 2.7~3.6V NULL
16Mb x16 EM6168FV16B-55LF Dual CS 55ns BGA 48B 8x10x1.0 2.7~3.6V NULL
16Mb x16 EM6169FV16B-45LF Single CS 45ns BGA 48B 8x10x1.0 2.7~3.6V NULL
16Mb x16 EM6169FV16B-55LF Single CS 55ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x8 EM680FV8BU-45LF Dual CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
8Mb x8 EM680FV8BU-55LF Dual CS 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
8Mb x8 EM681FV8BU-45LF Single CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
8Mb x8 EM681FV8BU-55LF Single CS 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
8Mb x16 EM681FV16BU-45LF Single CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
8Mb x16 EM681FV16BU-55LF Single CS 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
8Mb x8 EM680FV8B-45LF Dual CS 45ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x8 EM680FV8B-55LF Dual CS 55ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x8 EM681FV8B-45LF Single CS 45ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x8 EM681FV8B-55LF Single CS 55ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x16 EM680FV16B-45LF Dual CS 45ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x16 EM680FV16B-55LF Dual CS 55ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x16 EM681FV16B-45LF Single CS 45ns BGA 48B 8x10x1.0 2.7~3.6V NULL
8Mb x16 EM681FV16B-55LF Single CS 55ns BGA 48B 8x10x1.0 2.7~3.6V NULL
2Mb x16 EM621FV16B-55LF Single CS 55ns BGA 48B 6x7x1.0 2.7~3.6V NULL
2Mb x8 EM621FV8BS-45LF Single CS 45ns STSOPI 32L 8x13.4 2.7~3.6V NULL
2Mb x8 EM621FV8BS-55LF Single CS 55ns STSOPI 32L 8x13.4 2.7~3.6V NULL
4Mb x16 EM640FV16F-45LF Dual C/S / LBB,UBB(tBA=tCO) 45ns BGA 48B 6x7x1.0 2.7~3.6V NULL
4Mb x8 EM641FT8S-55LF Single CS 55ns STSOPI 32L 8x13.4 5.0V NULL
4Mb x16 EM641FV16FU-45LF Single C/S / LBB,UBB(tBA=tCO) 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x8 EM641FV8FS-45LF Single CS 45ns STSOPI 32L 8x13.4 2.7~3.6V NULL
4Mb x8 EM641FV8FS-55LF Single CS 55ns STSOPI 32L 8x13.4 2.7~3.6V NULL
4Mb x16 EM643FV16FU-45LF Single CS / LBB,UBB(tBA=tOE) 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x16 EM641FV16FU-55LF Single C/S / LBB,UBB(tBA=tCO) 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x16 EM643FV16FU-45LF Single CS / LBB,UBB(tBA=tOE) 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x16 EM643FV16FU-55LF Single CS / LBB,UBB(tBA=tOE) 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x16 EM643FV16FU-70LF Single CS / LBB,UBB(tBA=tOE) 70ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x16 EM646FV16FU-45LF Dual CS / LBB,UBB(tBA=tCO) * the same with EM640xxx series 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x16 EM646FV16FU-55LF Dual CS / LBB,UBB(tBA=tCO) * the same with EM640xxx series 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
4Mb x16 EM640FV16F-55LF Dual C/S / LBB,UBB(tBA=tCO) 55ns BGA 48B 6x7x1.0 2.7~3.6V NULL
4Mb x16 EM641FV16F-45LF Single C/S / LBB,UBB(tBA=tCO) 45ns BGA 48B 6x7x1.0 2.7~3.6V NULL
4Mb x16 EM641FV16F-55LF Single C/S / LBB,UBB(tBA=tCO) 55ns BGA 48B 6x7x1.0 2.7~3.6V NULL
2Mb x8 EM620FV8BS-45LF Dual CS 45ns STSOPI 32L 8x13.4 2.7~3.6V NULL
2Mb x8 EM620FV8BS-55LF Dual CS 55ns STSOPI 32L 8x13.4 2.7~3.6V NULL
2Mb x8 EM620FV8BS-70LF Dual CS 70ns STSOPI 32L 8x13.4 2.7~3.6V NULL
2Mb x16 EM620FV16BU-45LF Dual CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
2Mb x16 EM620FV16BU-55LF Dual CS 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
2Mb x16 EM621FV16BU-45LF Single CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
2Mb x16 EM621FV16BU-55LF Single CS 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
2Mb x16 EM620FV16B-45LF Dual CS 45ns BGA 48B 6x7x1.0 2.7~3.6V NULL
2Mb x16 EM620FV16B-55LF Dual CS 55ns BGA 48B 6x7x1.0 2.7~3.6V NULL
2Mb x16 EM621FV16B-45LF Single CS 45ns BGA 48B 6x7x1.0 2.7~3.6V NULL
1Mb x16 EM610FV16U-45LF Dual CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
1Mb x16 EM611FV16U-45LF Single CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
1Mb x16 EM611FV16U-45LF Single CS 45ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
1Mb x16 EM611FV16U-55LF Single CS 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
1Mb x8 EM610FV8T-45LF Dual CS 45ns TSOPI 32L 8x20 2.7~3.6V NULL
1Mb x8 EM610FV8S-45LF Dual CS 45ns STSOPI 32L 8x13.4 2.7~3.6V NULL
1Mb x8 EM610FV8S-55LF Dual CS 55ns STSOPI 32L 8x13.4 2.7~3.6V NULL
1Mb x16 EM610FV16U-55LF Dual CS 55ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
1Mb x16 EM611FV16U-70LF Single CS 70ns TSOPII 44L 11.76x18.41x1.2 2.7~3.6V NULL
1Mb x8 EM610FV8T-55LF Dual CS 55ns TSOPI 32L 8x20 2.7~3.6V NULL
1Mb x8 EM610FV8T-70LF Dual CS 70ns TSOPI 32L 8x20 2.7~3.6V NULL
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