70T3319S133BC8

Memory IC Overview

The Renesas 70T3319S133BC8 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 maximum clock frequency of 133 MHz with an access time of 4.2 ns. The device utilizes a parallel interface and supports selectable 3.3V or 2.5V I/O power supplies while maintaining a 3.3V core voltage. It is housed in a 256-pin CABGA package measuring 17x17 mm and functions within a commercial temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Dual-port architecture enables simultaneous independent access to the same memory location by two separate processors.
• Supports selectable pipelined or flow-through output modes for optimized data throughput flexibility.
• Features automatic power-down capabilities controlled by chip enable signals to minimize standby power consumption.
• Includes JTAG functionality for boundary scan testing and system-level diagnostics.

Memory IC Applications

• High-speed data buffering in telecommunications equipment
• Network switching and routing applications requiring low-latency memory
• Industrial control systems utilizing dual-processor architectures
• Embedded systems requiring simultaneous bidirectional data flow

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance requirements as the part may not meet current environmental standards. Validate package integrity upon receipt, ensuring moisture sensitivity level handling protocols are followed during storage and assembly processes.

Memory IC Selection Notes

Select this component when simultaneous dual-access memory is required for burst data flows. Ensure design compatibility with 3.3V core and selectable I/O voltages. Consider thermal management for the CABGA package within the specified operating temperature range. Verify that the 133 MHz speed meets system timing constraints.

Memory IC Part Context

This part belongs to the 70T3319 family of synchronous dual-port RAMs from Renesas. It shares architectural similarities with other variants like the 70V3319 but differs in specific electrical characteristics and packaging options. The family is designed for applications demanding high bandwidth and concurrent read/write operations across multiple ports.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The product status is listed as discontinued. Designers should consult official Renesas resources for potential obsolescence management strategies or alternative family members with compatible pinouts and specifications.