OKI M548128BL-80 1Mbit Pseudo-Static RAM IC

Description

OKI M548128BL-80 1-Mbit Memory IC

The OKI M548128BL-80 is a memory IC identified by the top marking “OKI JAPAN M548128BL-80 5375351”. Documentation for the related OKI MSM548128BL family describes pseudo-static RAM (PSRAM) with a 1-Mbit capacity and a 128K × 8-bit organisation. The family information is useful for identification, but does not conclusively establish every detail of this exact order code.

Technical specifications

• Manufacturer: OKI
• Part number: M548128BL-80
• Memory type: Pseudo-static RAM (PSRAM; family-level identification)
• Capacity: 1 Mbit
• Organisation: 128K × 8 bits
• Speed grade: 80 ns
• Marking: OKI JAPAN M548128BL-80 5375351
• Era: 1995

Application and identification

Listed for identification and replacement research involving legacy printer formatter and controller electronics. Before selecting a replacement, verify the complete part number, package, pinout and electrical requirements against the original circuit.