GS8642Z36GB-167IV

Memory IC Overview

The GS8642Z36GB-167IV is a 72 Mbit Zero Bus Turnaround (ZBT) Static Random Access Memory manufactured by GSI Technology. It features a memory organization of 2M x 36 and supports parallel interface operations. The component operates with a maximum clock frequency of 167 MHz and an access time of 8 ns. It functions within a supply voltage range of 1.7 V to 2.7 V, with maximum power consumption currents of 240 mA and 290 mA. The device is housed in a 119-pin BGA package and supports industrial operating temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports NBT functionality for zero wait Read-Write-Read bus utilization
• User-configurable Pipeline and Flow Through architecture modes
• Compatible with IEEE 1149.1 JTAG Boundary Scan standards

Memory IC Applications

• High-performance embedded systems requiring fast data access
• Network infrastructure equipment utilizing ZBT SRAM interfaces
• Industrial control applications operating in extended temperature ranges

Memory IC Procurement Notes

Verify the specific suffix IV indicates industrial temperature grade compliance (-40°C to +85°C). Confirm RoHS status and moisture sensitivity level requirements before integration. Ensure supply chain sources provide official datasheets matching the GS8642Z36GB series specifications. Validate pin compatibility with existing PCB layouts designed for 119-pin BGA packages.

Memory IC Selection Notes

Select this model when an 8 ns access time and 167 MHz clock speed are sufficient for the application. Choose this variant over faster speeds if lower power consumption at 1.8V/2.5V operation is prioritized. Ensure the design accommodates the 119-pin BGA footprint and supports the required parallel interface signals for ZBT operation.

Memory IC Part Context

This component belongs to the GS8642Z36GB series of NBT SRAMs. The series offers various speed grades and voltage options, maintaining pin compatibility across different configurations. It is designed to replace older pipeline or flow-through SRAMs while providing improved bus efficiency through NoBL technology.

Memory IC Replacement Considerations

Direct substitutes include other GS8642Z36GB variants with compatible pinouts, such as GS8642Z36GB-250IV, provided timing constraints allow for slower speeds. Verify that any replacement maintains the same 119-pin BGA package and ZBT interface characteristics.