CascadeTeq QSPI pSRAM CSS3204LU-LE-A2
CSS3204LU-LE-A2
CSS3204LU-LE-A2 is CascadeTeq’s 32-Mbit QSPI pSRAM (4 Mbit × 8) in a 3.3 V USON-8 package. Its QSPI interface delivers rapid data transfers while keeping the protocol simple and efficient. The USON-8 outline offers an ultra-small, low-profile footprint, making it ideal for space-constrained miniature electronics. Operating from a single 3.3 V rail, it mates directly with common system supplies. The device is perfect for applications that need moderate memory capacity and emphasize both compact size and low pin-count convenience—such as small IoT end-nodes, smart sensor modules, and tiny wearable devices—where it reliably buffers and quickly retrieves data.
Founded in 2009 in Hsinchu, Taiwan, CascadeTeq is the global leader in low-pin-count standard pSRAM (LPC pSRAM). Leveraging a strategic 25 nm DRAM alliance with PSMC, the company delivers a 16–256 Mb portfolio across SPI, QSPI and Octal-DDR interfaces that runs up to 3.2 Gbps at 200 MHz. On-die self-refresh eliminates external controllers, cuts standby current to 5 µA and keeps active draw below 5 mA, while 2 mm×3 mm USON-8 (and larger QFN/BGA) packages and single 1.8–3.3 V supply cover –40 °C to +105 °C, meeting AEC-Q100 Grade 2 for automotive use. Already shipping in smart cameras, industrial gateways, wearables, e-bike dashboards and in-vehicle voice modules, CascadeTeq is supported in mainland China by Mandu Technology, which provides rapid samples, technical support and custom storage solutions to shorten customers’ 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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