IS42S16800J-7BL

Memory IC Overview

The IS42S16800J-7BL is a 128 Mbit Synchronous Dynamic Random Access Memory (SDRAM) manufactured by ISSI. It features an 8M x 16 organization with a maximum clock frequency of 143 MHz and an access time of 5.4 ns. The device operates within a voltage range of 3 V to 3.6 V and supports data bus widths of 8-bit or 16-bit. It is housed in a 54-ball BGA package measuring 8 mm x 8 mm, suitable for surface mount technology applications.

Memory IC Feature Summary

• Fully synchronous operation with all signals referenced to the positive clock edge
• Internal bank architecture designed to hide row access and precharge times
• Supports programmable burst lengths including sequential and interleave sequences

Memory IC Applications

• Consumer electronics requiring compact memory solutions
• Industrial control systems utilizing surface mount components
• Embedded systems needing high-density synchronous DRAM

Memory IC Procurement Notes

Verify the specific suffix J-7BL against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the procurement channel provides original manufacturer documentation to validate RoHS compliance and lead-free status before integration into production designs.

Memory IC Selection Notes

Select this component when a 128 Mbit capacity with a 16-bit interface width is required in a small form factor. The 143 MHz speed grade offers a balance between performance and power consumption for standard synchronous memory interfaces. Confirm that the system design accommodates the 54-ball BGA footprint and associated thermal requirements.

Memory IC Part Context

This part belongs to the IS42S16800 series of SDRAMs from ISSI. The series typically includes variants with different speed grades and temperature ranges. The J-7BL designation specifically indicates the commercial temperature range and the 143 MHz operational speed class within the broader product family.

Memory IC Replacement Considerations

Check for IS42S16800E-7BLI as a potential alternative within the same series. Verify package dimensions and pin assignments carefully, as suffixes may indicate differences in packaging or environmental ratings rather than functional equivalence.