IS62WV51216ALL-70BI

Memory IC Overview

The IS62WV51216ALL-70BI is an 8 Mbit asynchronous static random-access memory (SRAM) manufactured by ISSI. It features a memory organization of 512K words by 16 bits, providing a total capacity of 1 Megabyte. The device operates with a maximum access time of 70 ns and supports a supply voltage range from 2.5 V to 3.6 V. It is housed in a 48-pin Thin Fine-Pitch Ball Grid Array (TFBGA) package measuring 6 mm by 8 mm. The component is designed for surface mount technology and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Asynchronous parallel interface for direct connection to microcontrollers and FPGAs without clock synchronization requirements
• CMOS technology construction ensuring low power consumption during active operation and standby modes
• Industrial-grade thermal stability allowing reliable performance across wide ambient temperature variations

Memory IC Applications

• Frame buffer storage for industrial control systems and PLCs
• Data packet buffering in network communication equipment
• Temporary data storage for instrumentation and medical devices
• External memory expansion for legacy MCU or FPGA platforms

Memory IC Procurement Notes

Verify the specific suffix 'ALL-70BI' to confirm the 70 ns speed grade and TFBGA package type, as other variants exist with different speeds or packages. Confirm RoHS compliance status through official datasheets before integration. Ensure ESD protection protocols are followed during handling due to moisture sensitivity classification. Validate pin compatibility if replacing existing components on established PCB layouts.

Memory IC Selection Notes

Select this part when a 16-bit data width is required for system bus alignment. The 70 ns speed is suitable for moderate-frequency applications where higher-speed options are unnecessary. The TFBGA package offers space efficiency for dense board designs. Consider alternative packages like TSOP if reflow soldering capabilities are limited compared to standard surface mount processes.

Memory IC Part Context

This component belongs to the IS62WV51216 series of high-speed SRAMs from Integrated Silicon Solution Inc. The series provides various speed grades and packaging options to suit different embedded memory needs. The ALL-70BI variant specifically denotes the 70 nanosecond access time version in the fine-pitch ball grid array format, distinguishing it from slower or faster iterations within the same memory architecture family.

Memory IC Replacement Considerations

The EMI508 is a documented pin-to-pin compatible alternative offering similar specifications. Verify that the substitute matches the 70 ns access time requirement and maintains the 2.5 V to 3.6 V operating voltage range. Confirm mechanical footprint equivalence for the 48-ball BGA configuration.