The Highlights of RM540

Compliance with the standard of JEDEC eMMC 5.1 Version, and support SDR/DDR/HS200/HS400 interface modes.
Supports SLC caching.
Supports FFU firmware upgrade.
High-performance, high-quality solutions oriented to OEM partners have been delivered to more than 10 million applications.

High Performance

RM540 supports HS400 interface mode and SLC caching. Moreover, thanks to its originative firmware architecture and intelligent GC algorithm, firmware maximizes software/hardware performance under both heavy and light loads, enabling industry-leading 320 MB/s in sequential read and up to 240 MB/s in sequential write speed.

High Quality

With a sound quality assurance system, Union Memory adopts mature mechanisms to control the quality throughout the product lifecycle. During R&D phase, Root Causes have been identified for all faults with RM540, and closed loop and adequacy have been verified, so as to ensure excellent quality performance of products after mass production. With the original quality prediction model, Union Memory can accurately predict the quality performance of the products after mass production. RM540 has delivered accumulative 10 millions of units and has been proved meeting partners' demanding DPPM requirements in various application scenarios through rigorous market testing.

High Compatibility

RM540 has gone through rigorous design reasoning, signal simulation, package reliability verification, protocol conformance testing, temperature shock testing, firmware reliability verification, multi-generation platform compatibility testing from major manufacturers and demanding OEM import verification. These numerous intensive, multi-dimensional tests ensure that RM540 is an industry leader in terms of compatibility.

Specifications

Product Series	RM540
Capacity	32 GB	64 GB	128 GB
Model	RETMEDB32GSBB	RETMEDB64GDBB	RETMEDB128QBB
Interface	eMMC 5.1	eMMC 5.1	eMMC 5.1
Sequential Read	300 MB/s	320 MB/s	320 MB/s
Sequential Write	150 MB/s	230 MB/s	240 MB/s
Random Read IOPS	9K	9.4K	9.4K
Random Write IOPS	31K	38K	38K
Clock Mode	SDR/DDR/HS200/HS400
Operating Voltage	VCC: 2.7 to 3.6 V, VCCQ: 1.7 to 1.95 V / 2.7 to 3.6 V
Operating Temperature	-25℃ to 85℃
Storage Temperature	-40℃ to 85℃
Packaging Form	BGA 153 Ball, 11.5 mm13.0 mm1.0 mm