نظرة عامة على المنتج
The CSS1604SU-MI is a 16Mbit (2M x 8-bit) Quad-SPI Pseudo-SRAM (PSRAM) from Cascadeteq (凯芯), operating at 1.62V to 3.6V with SPI/QPI interface. It features clock rates up to 133 MHz (wrapped burst at 3.0V) and 109 MHz (at 3.3V), with self-managed refresh. The SU variant uses an ultra-compact USON-8L (3x2mm) package, and the MI suffix denotes industrial temperature range (-40°C to +85°C). It is positioned as a domestic (Chinese) alternative to imported PSRAM chips.
المواصفات الرئيسية
| الكثافة | 16Mb (2M x 8 bits) |
| جهد الإمداد | 1.62V to 3.6V |
| الواجهة | SPI / QPI (SDR mode) |
| Max Clock Rate | 133 MHz (3.0V wrapped), 109 MHz (3.3V wrapped), 84 MHz (linear) |
| Page Size | 512 bytes |
| Burst Mode | Configurable wrap: 16/32/64/512 bytes; Linear 512 |
| Refresh | Self-managed |
| التيار الاحتياطي | 35 µA typical @ 25°C, 150 µA max @ 85°C |
| Output Drive | LVCMOS, programmable 50/100/200Ω |
| Operating Temp | -40 درجة مئوية إلى +85 درجة مئوية |
| الحزمة | USON-8L (3mm x 2mm) |
| حالة الجزء | نشط |
الميزات
- 16Mb SPI/QPI PSRAM — domestic alternative to imported PSRAM
- Self-managed refresh — no external DRAM refresh required
- Configurable wrap burst lengths: 16, 32, 64, 512 bytes
- Linear 512-byte burst up to 84 MHz with page boundary crossing
- Programmable output drive strength (50/100/200Ω)
- Ultra-compact USON-8L (3x2mm) package
- Software reset
التطبيقات
- Wearable and IoT devices
- Portable consumer electronics
- MCU external PSRAM (ESP32, STM32)
- Smart home and low-power devices