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| wiki:cmp:mem:lpddr4:start [2023/11/27 14:47] – [Table] Roman Abakumov | wiki:cmp:mem:lpddr4:start [2025/09/26 10:43] (текущий) – Roman Abakumov | ||
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| Строка 1: | Строка 1: | ||
| - | ===== LPDDR4(4x) ===== | + | ====== LPDDR4(4x) |
| - | ==== Manufacturers ==== | + | ===== Manufacturers |
| | https:// | | https:// | ||
| | https:// | | https:// | ||
| Строка 21: | Строка 21: | ||
| ==== Table ==== | ==== Table ==== | ||
| | MT53D512M32D2DS-053WT: | | MT53D512M32D2DS-053WT: | ||
| - | | H2AB32G32D6CPAAI | + | | H2AB32G32D6CPAAI |
| - | | W66BQ6NB | + | | W66BQ6NB |
| - | | NCLD4C1MA256M32\\ NCLD4C2MA512M32\\ NCLD4C2MA768M32\\ NCLD4C2MA001G32 | + | | W66CQ2NQ |
| + | | NCLD4C1MA256M32 | ||
| + | | NCLD4C2MA512M32 | ||
| + | | NCLD4C2MA768M32 | ||
| + | | NCLD4C2MA001G32 | ||
| + | ===== Configurations ===== | ||
| + | ^ Capacity ^ Width ^ CS (Rank) ^ Channels ^ Dies ^ Link ^ Diagram ^ | ||
| + | | 16 Gb | x16 | 1 CS | 1 Channel | 1 Die | [[https:// | ||
| + | | 16 Gb | x16+x16 | 1 CS | 2 Channel | 1 Die | [[https:// | ||
| + | | 8 Gb | x16+x16 | 1 CS | 2 Channel | 1 Die | [[https:// | ||
| + | | 16 Gb | x16+x16 | 1 CS | 2 Channel | 1 Die | [[https:// | ||
| + | | 16 Gb | x16+x16 | 1 CS | 2 Channel | 1 Die | [[https:// | ||
| + | | 16 Gb | x16+x16 | 1 CS | 2 Channel | 2 Die | [[https:// | ||
| + | | 32 Gb | x16+x16 | 1 CS | 2 Channel | 2 Die | [[https:// | ||
| + | | 32 Gb | x16+x16 | 1 CS | 2 Channel | 2 Die | [[https:// | ||
| + | | 16 Gb | x16+x16 | 2 CS | 2 Channel | 2 Die | [[https:// | ||
| + | | 32 Gb | x16+x16 | 2 CS | 2 Channel | 2 Die | [[https:// | ||
| + | | 32 Gb | x16+x16 | 2 CS | 2 Channel | 4 Die | [[https:// | ||
| + | | 64 Gb | X16+x16 | 2 CS | 2 Channel | 4 Die | [[https:// | ||
| + | | 64 Gb | x16+x16 | 2 CS | 2 Channel | 4 Die | [[https:// | ||
| + | | 64 Gb | x16+x16 | 2 CS | 2 Channel | 4 Die | [[https:// | ||
| + | | 128 Gb | x16+x16 | 2 CS | 2 Channel | 8 Die | [[https:// | ||
| - | ==== SKHynix ==== | + | |
| + | ===== SKHynix | ||
| {{tablelayout? | {{tablelayout? | ||
| | H9HCNNNCPUMLXR-NEE | | H9HCNNNCPUMLXR-NEE | ||
| Строка 120: | Строка 142: | ||
| - | ==== low power ==== | + | ===== low power ===== |
| LPDDR4X is a variant of LPDDR4, with the difference of additional power savings by reducing the I/O voltage from 1.1 V to 0.6 V. | LPDDR4X is a variant of LPDDR4, with the difference of additional power savings by reducing the I/O voltage from 1.1 V to 0.6 V. | ||
| - | ==== ECC ==== | + | ===== ECC ===== |
| ECC is supported on the LPDDR4 interface. Unlike traditional ECC interfaces which require dedicated memory | ECC is supported on the LPDDR4 interface. Unlike traditional ECC interfaces which require dedicated memory | ||
| pins and devices, ECC is supported inline. The ECC system impact is in interface bandwidth and overall memory | pins and devices, ECC is supported inline. The ECC system impact is in interface bandwidth and overall memory | ||
| Строка 135: | Строка 157: | ||
| * есть p\n с ECC (https:// | * есть p\n с ECC (https:// | ||
| - | ==== Termination ==== | + | ===== Termination |
| LPDDR4 memories have software configurable on-die termination for both the data group nets. The DDR | LPDDR4 memories have software configurable on-die termination for both the data group nets. The DDR | ||
| subsystem also contains software configurable on-die termination for the address/ | subsystem also contains software configurable on-die termination for the address/ | ||
| Строка 141: | Строка 163: | ||
| - | ==== VREF ==== | + | ===== VREF ===== |
| LPDDR4 memories generate their own VREFCA and VREFDQ internally for the address / command bus and data bus, | LPDDR4 memories generate their own VREFCA and VREFDQ internally for the address / command bus and data bus, | ||
| respectively. Similarly, the DDR PHY also provides its own reference voltage for the data group nets | respectively. Similarly, the DDR PHY also provides its own reference voltage for the data group nets | ||
| Строка 148: | Строка 170: | ||
| - | ==== VTT ==== | + | ===== VTT ===== |
| Unlike DDR3 and DDR4, there is no required termination on the PCB of the address/ | Unlike DDR3 and DDR4, there is no required termination on the PCB of the address/ | ||
| configuration. All termination is handled internally (on-die). Thus, VTT does not apply for LPDDR4. | configuration. All termination is handled internally (on-die). Thus, VTT does not apply for LPDDR4. | ||
| - | ==== Routing ==== | + | ===== Routing |
| ^ ^ TI ^ RockChip ref design ^ | ^ ^ TI ^ RockChip ref design ^ | ||
| | SE impedance | | SE impedance | ||
| Строка 179: | Строка 201: | ||
| - | ==== Docs ==== | + | ===== Docs ===== |
| ^ Application Notes ^^^^^^^ | ^ Application Notes ^^^^^^^ | ||
| ^ link ^ ext ^ description ^ manufacturer ^ version ^ date ^ lang ^ | ^ link ^ ext ^ description ^ manufacturer ^ version ^ date ^ lang ^ | ||