MSM98S

• 0.8m drawn three-layer metal CMOS
• Mixed 3-V/5-V operation for low power and high speed
• SOG and CSA architecture availability
• Clock tree cells with £ 1.0-ns clock skew, worst-case (fan-out = 2000 at 70 MHz)
• Usable density from 6.5k to 135k gates
• I/Os may be VSS, 3 V, 5 V, VDD, CMOS, TTL, and 3- state, with 2-mA to 48-mA drive
• I/O level shifter cells, allowing any buffer (input, output, or bidirectional) to interface with 3 V or 5 V
• Slew-rate-controlled outputs for low radiated noise
• User-configurable single and multi-port memories
• Specialized 3-V and 5-V macrocells, including phaselocked loop, and PCI cells
• Floorplanning for front-end simulation and back-end layout controls
• JTAG boundary scan and scan-path ATVG

OKI's 0.8m ASIC products MSM98S, specially designed for mixed 3-V/5-V applications, are now available in both Sea Of Gates (SOG) and Customer Structured Array (CSA) architectures. Both the SOG-based MSM38S Series and the CSA-based MSM98S Series use a three-layer-metal process on 0.8m drawn (0.6m L-effective) CMOS technology. The semiconductor process is adapted from OKI's production-proven 16-Mbit DRAM manufacturing process.

Ideal for low-power portable applications, the MSM98S are constructed with separate power busses for internal core logic and configurable I/O functions. Altogether, the architecture provides maximum flexibility, meeting the needs of all 3-V, 5-V, and mixed 3-V/5-V signal requirements.

The MSM38S SOG Series is available in seven sizes with up to 420 I/O pads and over 135,000 usable gates. SOG array sizes are designed to fit the most popular quad flat pack (QFP) packages, such as 100-, 136-, 160-, and 208-pin QFPs. MSM38S SOG-based designs are therefore ideal for pad-limited circuits that require rapid prototyping turnaround times.

The MSM98S CSA Series is an all-mask-level superset of the SOG series, available in 29 sizes. The CSA offerings combine the SOG architecture's logic flexibility with the higher integration yielded by optimized diffusion for faster and more compact memory blocks. The MSM98S is ideal for core-limited applications or circuits with large and/or multiple memory functions. Customer modification to the structure of any of the 29 predefined masterslices, rather than creation of a new masterslice every time, improves the prototyping turnaround time over cell-based  anufacturing techniques.

Both MSM98S are supported by OKI's proprietary MEMGEN tool which quickly and easily generates SOG memories (for the MSM38S) as well as optimized memories for the MSM98S Series. The families also feature floorplanning to control pre-layout timing, clock-skew management software that guarantees worst-case clock skew of 1 ns or less, and scan-path design techniques that support ATVG for fault coverage approaching 100%.