The SST34HF32x2xC/32x4x ComboMemory devices integrate either a 2M x16 or 4M x8 CMOS flash memory bank with either a 256K x16 or 512K x16 CMOS SRAM or pseudo SRAM (PSRAM) memory bank in a multi-chip package (MCP). These devices are fabricated using SST's proprietary, high-performance CMOS SuperFlash technology incorporating the split-gate cell design and thick-oxide tunneling injector to attain better reliability and manufacturability compared with alternate approaches. The SST34HF32x2xC/32x4x devices are ideal for applications such as cellular phones, GPS devices, PDAs, and other portable electronic devices in a low power and small form factor system.