1. Executive Summary
The Loongtion LPDDR4X SDRAM is a low-power, high-bandwidth memory solution designed for industrial, embedded, military-grade, and commercial systems requiring robust performance across extended temperature ranges. Based on traditional DDR SDRAM technology with architectural improvements in power efficiency and data throughput, this product utilizes wafer sourced from ChangXin Memory Technologies and is packaged to meet China-domestic supply compliance requirements.
Key differentiators include a dual-channel architecture per die, a Low Voltage Swing Terminated Logic (LVSTL) I/O system, and support for multiple temperature grades ranging from standard (-40°C to 85°C) and extended (85°C to 105°C) to industrial/military (-55°C to 105°C). The device operates at core voltages of VDD1 = 1.8 V, VDD2 = 1.1 V, and I/O voltage VDDQ = 0.6 V, enabling significant power savings while supporting data rates up to 4266 MT/s across all listed part numbers.
Loongtion LPDDR4X SDRAM is suitable for applications requiring low power, high bandwidth, and supply-chain localization. All part numbers are offered in a compact FBGA200 package measuring 15 mm × 10 mm × 0.95 mm.
2. Product Overview
Loongtion LPDDR4X SDRAM (Low Power Double Data Rate 4X Synchronous Dynamic Random Access Memory) is a high-performance memory product belonging to the LPDDR4X category. It is fabricated using advanced process technology and is delivered in an FBGA200 package with a 22-row ball grid array (ball pitch 0.8 mm along the X-axis and 0.65 mm along the Y-axis). The physical dimensions are 15 mm × 10 mm × 0.95 mm.
The device supports a multi-channel architecture: dual-channel die configurations with dedicated channels A and B, or functionally equivalent single-channel die stacking. The "\A" and "\B" signal suffixes denote respective DRAM channels; "\_B" pads exist only on dual-channel SDRAM devices.
Capacity and Temperature Options
CapacityPart NumberPackageData Rate (MT/s)| Parameter | Specification |
|---|---|
| Temperature Range | 2 GB YMDB5CCBM-EA-A FBGA200 3733 / 4266 -55°C to 105°C 4 GB YMDB6CCBM-EA-A FBGA200 3733 / 4266 -55°C to 105°C 2 GB YZDB5CCBM-EA-A FBGA200 3733 / 4266 -40°C to 85°C 4 GB YZDB6CCBM-EA-A FBGA200 3733 / 4266 -40°C to 85°C 4 GB YZDB6CBAM-MA-B FBGA200 3733 / 4266 -40°C to 85°C 8 GB YZDB6CCDM-EA-A FBGA200 3733 / 4266 -40°C to 85°C |