70T3319S166BF8

Memory IC Overview

The Renesas 70T3319S166BF8 is a high-speed synchronous dual-port SRAM with a density of 4.5 Mbit, organized as 256K x 18 bits. It operates at a clock frequency of 166 MHz with an access time of 3.6 ns. The device supports parallel interface and functions on a core voltage of 2.5V, while I/Os support selectable 3.3V or 2.5V levels. It is housed in a 208-CABGA package measuring 15x15 mm and operates within a commercial temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Simultaneous independent access to memory locations by two ports
• Selectable pipelined or flow-through output modes for burst data flow optimization
• Automatic power-down capability controlled by chip enables for low standby power
• Interleaved I/O architecture supporting bidirectional data transfer

Memory IC Applications

• Network routers and switches requiring high-speed packet buffering
• Telecommunications equipment utilizing burst data processing
• Industrial control systems needing reliable dual-port memory
• Embedded systems with unidirectional or bidirectional data flow requirements

Memory IC Procurement Notes

This component is officially discontinued and no longer in production. Verification of availability is restricted to existing stock held by authorized distributors or secondary market suppliers. Buyers must confirm the specific manufacturing date code and physical condition prior to acquisition. Ensure compliance with RoHS non-compliant status and lead-free restrictions applicable to your region. Supply chain continuity plans should account for this end-of-life status.

Memory IC Selection Notes

Select this part when a synchronous dual-port SRAM with 18-bit width and 166 MHz performance is required. It is suitable for designs needing simultaneous port access without external arbitration logic. Consider the 208-pin CABGA package constraints and thermal management needs. Verify that the system supports the specified 2.5V core and selectable I/O voltages. This component serves as a direct replacement for previous IDT variants within the same family.

Memory IC Part Context

The 70T3319 series belongs to Renesas' high-speed synchronous dual-port RAM family, originally developed under IDT branding. These devices are engineered for applications demanding high bandwidth and low latency. The 70T3319S166BF8 specifically represents the 166 MHz speed grade variant. It shares architectural similarities with other members like the 70T3599 but differs in organization and pinout compatibility.

Memory IC Replacement Considerations

Direct substitutes include other 70T3319 speed grades such as 70T3319S133BF8. Cross-reference with legacy IDT70T3319S166BF8 markings. Verify pin compatibility and electrical specifications before substituting with similar dual-port SRAMs from other manufacturers.