The P33 memory devices incorporate technology that enables fast factory PROGRAM and ERASE operations. These memory devices support READ operations with VCC at the low voltages and ERASE and PROGRAM operations with VPP at the low voltages or VPPH. The P33 memory devices consist of industry-standard command sequence that invokes program and erase automation. Each ERASE operation erases one block. These memory devices include enhanced protection via password access that supports write and/or read access protection of user-defined blocks. The P33 memory devices also provide the full-device OTP security feature.