CascadeTeq QSPI pSRAM CSS1604SB
CSS1604SB
CSS1604SB is CascadeTeq’s 16-Mbit QSPI pSRAM (2 Mbit × 8) in a 1.8 V BGA-24 package. The QSPI interface delivers high-speed data transfers, the compact BGA-24 footprint meets the integration needs of miniaturized devices, and the 1.8 V core voltage minimizes energy consumption. It is ideal for applications requiring modest storage capacity while prioritizing small form-factor packaging and ultra-low power—such as compact smart terminals and low-power embedded modules—providing reliable basic data buffering and access.
CascadeTeq pSRAM is a pseudo-static RAM family purpose-built for “high-speed cache + tiny footprint + ultra-low power” scenarios. Fabricated on a 25 nm DRAM process, it replaces the traditional DRAM controller with on-die self-refresh and presents a simple SPI/QSPI/Octal-DDR interface, allowing an MCU to achieve burst bandwidths of 480 Mbps to 3.2 Gbps over only 4–8 pins. Densities span 16 Mb to 256 Mb, packages shrink to 2 mm × 3 mm USON-8, and the devices operate from –40 °C to +105 °C with full AEC-Q100 qualification for automotive or harsh outdoor applications. In mainland China, CascadeTeq is professionally represented by Shenzhen Mandu Technology, which provides device selection guidance, technical support, and rapid sample service to shorten customer development cycles.
--16Mb QSPI pSRAM--
| Part Number | Product Type | Density | Org. | Pkg. | Voltage | Download |
| CSS1604LU-M | QSPI pSRAM | 16Mbit | 8Mbx8 | USON-8 | 3.3V | Not yet |
| CSS1604LS-M | QSPI pSRAM | 16Mbit | 8Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS1604LS-MJ | QSPI pSRAM | 16Mbit | 8Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS1604LQ | QSPI pSRAM | 16Mbit | 8Mbx8 | QFN-16 | 3.3V | Not yet |
| CSS1604SU-M | QSPI pSRAM | 16Mbit | 8Mbx8 | USON-8 | 1.8V | Not yet |
| CSS1604SU-MI | QSPI pSRAM | 16Mbit | 8Mbx8 | USON-8 | 1.8V | Not yet |
| CSS1604SS-M | QSPI pSRAM | 16Mbit | 8Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS1604SS-MI | QSPI pSRAM | 16Mbit | 8Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS1604SS-MJ | QSPI pSRAM | 16Mbit | 8Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS1604SQ | QSPI pSRAM | 16Mbit | 8Mbx8 | QFN-16 | 1.8V | Not yet |
| CSS1604SB | QSPI pSRAM | 16Mbit | 2Mbx8 | BGA-24 | 1.8V | Not yet |
--32Mb QSPI pSRAM--
| Part Number | Product Type | Density | Org. | Pkg. | Voltage | Download |
| CSS3204LU-L-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | USON-8 | 3.3V | Not yet |
| CSS3204LU-LE-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | USON-8 | 3.3V | Not yet |
| CSS3204LS-L-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS3204LS-LI-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS3204LS-LJ-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS3204SU-L-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | USON-8 | 1.8V | Not yet |
| CSS3204SU-LI-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | USON-8 | 1.8V | Not yet |
| CSS3204SS-L-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS3204SS-LI-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS3204SS-LJ-A2 | QSPI pSRAM | 32Mbit | 4Mbx8 | SOP-8 | 1.8V | Not yet |
--64Mb QSPI pSRAM--
| Part Number | Product Type | Density | Org. | Pkg. | Voltage | Download |
| CSS6404LU-L | QSPI pSRAM | 64Mbit | 8Mbx8 | USON-8 | 3.3V | Not yet |
| CSS6404LS-L | QSPI pSRAM | 64Mbit | 8Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS6404LS-LI | QSPI pSRAM | 64Mbit | 8Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS6404LS-LJ | QSPI pSRAM | 64Mbit | 8Mbx8 | SOP-8 | 3.3V | Not yet |
| CSS6404SU-L | QSPI pSRAM | 64Mbit | 8Mbx8 | USON-8 | 1.8V | Not yet |
| CSS6404SU-LE | QSPI pSRAM | 64Mbit | 8Mbx8 | USON-8 | 1.8V | Not yet |
| CSS6404SS-L | QSPI pSRAM | 64Mbit | 8Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS6404SS-LI | QSPI pSRAM | 64Mbit | 8Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS6404SS-LJ | QSPI pSRAM | 64Mbit | 8Mbx8 | SOP-8 | 1.8V | Not yet |
--128Mb QSPI pSRAM--
| Part Number | Product Type | Density | Org. | Pkg. | Voltage | Download |
| CSS12804SQ | QSPI pSRAM | 128Mbit | 16Mbx8 | QFN-16 | 1.8V | Not yet |
| CSS12804SB | QSPI pSRAM | 128Mbit | 16Mbx8 | BGA-24 | 1.8V | Not yet |
| CSS12804SU-O | QSPI pSRAM | 128Mbit | 16Mbx8 | USON-8 | 1.8V | Not yet |
| CSS12804SU-O1 | QSPI pSRAM | 128Mbit | 16Mbx8 | USON-8 | 1.8V | Not yet |
| CSS12804SS-O | QSPI pSRAM | 128Mbit | 16Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS12804SS-O1 | QSPI pSRAM | 128Mbit | 16Mbx8 | SOP-8 | 1.8V | Not yet |
| CSS12804SS-OJ | QSPI pSRAM | 128Mbit | 16Mbx8 | SOP-8 | 1.8V | Not yet |
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