Nanya 256Mb SDRAMs is a high-speed CMOS Double Data Rate SDRAM containing 268,435,456 bits. It is internally configured as a quad-bank DRAM. It uses a double-data-rate architecture to achieve high speed operation. The double data rate architecture is essentially a 2n prefetch architecture with an interface designed to transfer two data words per clock cycle.
JEDEC DDR Compliant - Differential clock inputs (CK and ) - DLL aligns DQ and DQS transition with CK transitions - 2n Prefetch Architecture - DQS is edge-aligned with data for reads and center-aligned with data for WRITEs - DQ and DM referenced to both edges of DQS - tRAS lockout (tRAP = tRCD)
Signal Integrity - Configurable DS for system compatibility
Data Integrity - Auto Refresh Mode - Self Refresh Mode
Power Saving Mode - Power Down Mode
Interface and Power Supply - SSTL_2 compatible (All inputs) - SSTL_2, Class II compatible (All outputs) - VDD/VDDQ=2.5V±0.2V (DDR-333) - VDD.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | NT5DS32M8AT |
Nanya |
256Mb DDR333/300 SDRAM | |
2 | NT5DS32M8AW |
Nanya |
(NT5DSxxMxAx) 256Mb DDR333/300 SDRAM | |
3 | NT5DS32M8BF |
Nanya Techology |
(NT5DSxxMxBx) 256Mb DDR SDRAM | |
4 | NT5DS32M8BG |
Nanya Techology |
(NT5DSxxMxBx) 256Mb DDR SDRAM | |
5 | NT5DS32M8BS |
Nanya Techology |
(NT5DSxxMxBx) 256Mb DDR SDRAM | |
6 | NT5DS32M8BT |
Nanya Techology |
(NT5DSxxMxBx) 256Mb DDR SDRAM | |
7 | NT5DS32M8BW |
Nanya Techology |
(NT5DSxxMxBx) 256Mb DDR SDRAM | |
8 | NT5DS32M8CS |
Nanya Techology |
256Mb SDRAM | |
9 | NT5DS32M8CT |
Nanya Techology |
256Mb SDRAM | |
10 | NT5DS32M16AF |
Nanya Techology |
(NT5DSxxMxAF) 512Mb DDR SDRAM | |
11 | NT5DS32M16BF |
Nanya Techology |
(NT5DSxxMxBx) 512Mb DDR SDRAM | |
12 | NT5DS32M16BG |
Nanya Techology |
(NT5DSxxMxBx) 512Mb DDR SDRAM |