JSD12164PAH-50-SU

Memory IC Overview

The JSD12164PAH-50-SU is a 512Mb LPDDR SDRAM manufactured by Jeju Semiconductor Corp. It features a synchronous double data rate architecture with a 2n-prefetch interface, transferring two data words per clock cycle at the I/O balls. The device operates within a voltage range of 1.7V to 1.95V for both VDD and VDDQ. It supports x16 and x32 data widths with clock rates up to 200MHz. Internal organization consists of four banks, each containing 134,217,728 bits arranged as 8,192 rows by 1,024 columns by 16 bits or 8,192 rows by 512 columns by 32 bits.

Memory IC Feature Summary

• Supports Partial Array Self-Refresh (PASR) and Auto Temperature Compensated Self-Refresh (ATCSR) for optimized power management.
• Features programmable output buffer driver strength and configurable burst lengths including sequential and interleave types.
• Includes Data Mask (DM) functionality for write data control and Clock Stop capability during idle periods.
• Utilizes differential clock inputs and bidirectional data strobes for high-speed signal integrity.

Memory IC Applications

• High bandwidth memory systems requiring double data rate performance
• Mobile devices utilizing low-power dynamic random-access memory
• Embedded applications compatible with LVCMOS interfaces

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm compatibility with system power sequencing requirements, specifically simultaneous VDD and VDDQ ramp-up. Ensure initialization sequences adhere to the specified timing parameters to prevent undefined operation.

Memory IC Selection Notes

Select this component based on the required data width (x16 or x32) and operating frequency constraints. Consider the available package options, such as the 60-ball FPBGA for x16 configurations. Evaluate the need for PASR and ATCSR features if power efficiency in self-refresh modes is critical for the target application.

Memory IC Part Context

This part belongs to the JSD12XX4PAx-SU family of 512Mb LPDDR SDRAMs. The series utilizes high-performance CMOS technology and is designed for mobile and embedded applications. Variants within the family differ primarily in data width and physical package dimensions while maintaining the core double data rate architecture.

Memory IC Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.

Memory IC FAQ

How is the Partial Array Self-Refresh (PASR) configured?

PASR is configured via the Extended Mode Register using address bits A0 to A2. Options include refreshing the entire array, 1/2 array, 1/4 array, or smaller fractions, with data outside the defined area being lost.

What is the initialization requirement regarding power supplies?

The device core power (VDD) and I/O power (VDDQ) must be brought up simultaneously to prevent latch-up. It is recommended that both voltages originate from the same power source.