IS42S32400J-7BL

Memory IC Overview

The IS42S32400J-7BL is a 128 Mbit Synchronous Dynamic Random Access Memory (SDRAM) manufactured by ISSI. It features a 32-bit data bus width and an organization of 4 Megabit by 32 bits. The device supports a maximum clock frequency of 143 MHz with a typical access time of 6.5 ns. It operates within a supply voltage range of 3 V to 3.6 V and is housed in a 90-ball BGA package measuring 8 mm by 13 mm. The component is designed for surface mount installation and functions within a commercial temperature range of 0°C to +70°C.

Memory IC Feature Summary

• Supports single data rate synchronous DRAM operations with standard timing protocols.
• Features LV TTL compatible inputs for interface flexibility.
• Includes programmable burst lengths of 1, 2, 4, 8, or full page.
• Provides auto-refresh and self-refresh modes for power management.

Memory IC Applications

• Wireless access points
• Base stations and routers
• Network storage systems
• Industrial controls

Memory IC Procurement Notes

Verify the specific suffix 'J' against the manufacturer's current datasheet to confirm it denotes the commercial temperature grade (0°C to +70°C). Ensure the 90-ball BGA footprint matches the target PCB design. Confirm RoHS compliance status as required by regional regulations before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 32-bit wide memory interface is required for high-bandwidth applications. The 143 MHz speed class suits general-purpose computing and networking tasks. Consider the 90-ball BGA package constraints during layout. Verify that the system power supply can maintain stability within the 3 V to 3.6 V operating window.

Memory IC Part Context

This part belongs to the ISSI IS42S32400 series of 128 Mbit SDRAM devices. The series offers various speed grades and temperature ranges. The 'J' suffix typically indicates the commercial temperature variant, distinguishing it from industrial versions like the 'D' or 'F' series which support wider thermal ranges.

Memory IC Replacement Considerations

The IS42S32400J-7BLI is listed as a manufacturer-recommended alternative. Verify if the 'I' suffix implies an extended temperature range or different packaging configuration compared to the 'BL' designation before substitution.