Alliance Memory AS4C256M16D4 and AS4C512M8D4 4Gb High-Speed CMOS DDR4 SDRAMs offer Low Power Consumption of +1.2V
The News: Alliance Memory has expanded its product offering with a line of high-speed CMOS DDR4 SDRAMs. For improved performance over previous-generation DDR3 devices, the 4Gb AS4C256M16D4 and AS4C512M8D4 offer lower power consumption and faster data transfer rates in 96-ball and 78-ball FBGA packages respectively.
Part Numbers: AS4C256M16D4-83BCN, AS4C256M16D4-83BCNTR, AS4C256M16D4-83BIN, AS4C256M16D4-83BINTR, AS4C256M16D4-75BCN, AS4C256M16D4-75BCNTR, AS4C256M16D4-75BIN, AS4C256M16D4-75BINTR, AS4C512M8D4-83BCN, AS4C512M8D4-83BCNTR, AS4C512M8D4-83BIN, AS4C512M8D4-83BINTR, AS4C512M8D4-75BCN, AS4C512M8D4-75BCNTR, AS4C512M8D4-75BIN, and AS4C512M8D4-75BINTR
Key Specifications and Benefits:
Low power consumption of +1.2V (±0.06V)
Offered in 96-ball and 78-ball FBGA packages
Internally configured as 8 banks x 256Mb x 16 bit and 16 banks x 512Mb x 8 bit
Fast clock speeds of 1200MHz and 1333MHz
Extremely high transfer rates of 2400Mbps/pin and 2666Mbps/pin
Available in extended commercial (0℃ to +95℃) and industrial (-40℃ to +95℃) temperature ranges
Support sequential and interleave burst types with read or write burst lengths of BL8/BC4/BC4 or 8 on the fly
The auto pre-charge function provides a self-timed row pre-charge initiated at the end of the burst sequence
Easy-to-use refresh functions include auto- or self-refresh
JEDEC- and RoHS-compliant
Lead (Pb)- and halogen-free
Target Applications:
Portable electronics, desktop computers, and servers for industrial, medical, IoT, automotive, gaming, and consumer applications
The Context: Compared to DDR3 SDRAMs, Alliance Memory’s 4Gb DDR4 SDRAMs reduce operating voltages from +1.5V to +1.2V (±0.06V) to increase battery life in portable electronics such as notebook computers, smartphones, and tablets. For increased efficiency and performance in desktop computers and servers, the 256Mb x 16-bit AS4C256M16D4 and 512M x 8-bit AS4C512M8D4 offer up to 16 memory banks and deliver faster clock speeds to 1333MHz for extremely high transfer rates of 2400Mbps/pin (1200MHz) and 2666Mbps/pin (1333MHz). With minimal die shrinks, the DDR4 SDRAMs provide reliable drop-in, pin-for-pin-compatible replacements for numerous similar solutions — eliminating the need for costly redesigns and part requalification.
Availability: Samples of the 4Gb DDR4 SDRAMs are available now.
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