H56G42AS4DX014

The H56G42AS4DX014 is a SK hynix 16Gb GDDR6 SGRAM — graphics DRAM, the memory used on graphics cards and consoles, not a PC DIMM module. The ordering section of the data sheet prints this number against three speed rows; all figures below are those rows as printed.

Key figures

• Density: the document is titled 16Gb GDDR6 SGRAM.
• Top row as printed: 16Gbps/pin at 8.0GHz WCK, supplies 1.8 / 1.35 / 1.35, interface POD_135.
• All three rows printed for this number:
• 16Gbps/pin at 8.0GHz WCK — 1.8 / 1.35 / 1.35, interface POD_135.
• 14Gbps/pin at 7.0GHz WCK — 1.8 / 1.25 / 1.25, interface POD_125.
• 12Gbps/pin at 6.0GHz WCK — 1.8 / 1.20 / 1.20, interface POD_125.
• Package as printed in the features list: 180 ball BGA on 0.75mm pitch — the document sets that bullet in two columns, which splits the word “pitch” in its text layer, so the two verbatim fragments are quoted here rather than one cleaned-up string.
• Document revision: Rev 1.1 / Jul.2021.

Merged cells in the ordering table

Section 2.2 lists four part numbers, each heading a block of three rows; the part-number cell is printed once per block and left empty on the two rows below it. The rows quoted above are the ones inside this number’s block, in the table’s own row order.

Operating temperature — stated as printed, not bucketed

The thermal characteristics table prints 0 to 85 oC as the normal operating temperature range (TOPER, measured on the case surface), with a maximum case temperature of 85 oC and a maximum junction temperature of 95.81 oC. Those are commercial-case numbers, but the document itself uses no grade word, and this library has no temperature entry for a bare 0 to 85 oC range. Rather than attach an entry that adds a grade the document does not state, or create a new library-wide entry for one part, the page publishes the manufacturer’s own characters and attaches no temperature category.

What this page does not claim

Lifecycle: left blank — the document prints no product status. The file is marked confidential and no byte-identical public copy has been verified, so no datasheet link is offered and we do not host it. The four numbers in this ordering table differ only in their speed rows; the document does not give them different densities, packages or temperatures, and none is invented here.

Provenance

SK hynix 16Gb GDDR6 SGRAM data sheet Rev 1.1 / Jul.2021 (manufacturer-confidential document; ordering section 2.2, features list, thermal characteristics table)

Who makes it

SK hynix started its semiconductor business in February 1983 and is headquartered at Icheon-si, Gyeonggi-do, Korea. It is a memory semiconductor maker supplying DRAM and NAND.