华邦 W631GU8MB
W631GU8MB
| Density | 128Mbitx8 8Banks | Status | |
|---|---|---|---|
| Vcc | 1.283V to 1.45V | Frequency | 667 / 800 / 933 / 1066 MHz |
| Package | Temperature Range | C-temp, I-temp | |
| Feature List | The W631GU8MB is a 1G bits DDR3L SDRAM and speed involving -09, 09I, 09J, -11, 11I, 11J, -12, 12I, 12J, -15, 15I and 15J 产品特点 Power Supply: 1.35V (typ.), VDD, VDDQ = 1.283V to 1.45V Backward compatible to VDD, VDDQ = 1.5V ± 0.075V Double Data Rate architecture: two data transfers per clock cycle Eight internal banks for concurrent operation 8 bit prefetch architecture CAS Latency: 5, 6, 7, 8, 9, 10, 11, 13 and 14 Burst Length 8(BL8) and burst chop 4 (BC4) modes: fixed via mode register (MRS) or selectable On-The-Fly (OTF) Programmable read burst ordering: interleaved or nibble sequential Bi-directional, differential data strobes (DQS and /DQS# ) are transmitted / received with data Edge-aligned with Read data and center-aligned with Write data DLL aligns DQ and DQS transitions with clock Differential clock inputs (CK and /CK# ) Commands entered on each positive CK edge, data and data mask are referenced to both edges of a differential data strobe pair (double data rate) Posted CAS with programmable additive latency (AL = 0, CL - 1 and CL - 2) for improved command, address and data bus efficiency Read Latency = Additive Latency plus CAS Latency (RL = AL + CL) Auto-precharge operation for read and write bursts Refresh, Self-Refresh, Auto Self-refresh (ASR) and Partial array self refresh (PASR) Precharged Power Down and Active Power Down Data masks (DM) for write data Programmable CAS Write Latency (CWL) per operating frequency Write Latency WL = AL + CWL Multi purpose register (MPR) for readout a predefined system timing calibration bit sequence System level timing calibration support via write leveling and MPR read pattern ZQ Calibration for output driver and ODT using external reference resistor to ground Asynchronous RESET# pin for Power-up initialization sequence and reset function Programmable on-die termination (ODT) for data, data mask and differential strobe pairs Dynamic ODT mode for improved signal integrity and preselectable termination impedances during writes 1K Byte page size Interface: SSTL_15 Package VFBGA78 Ball (8x10.5mm2), RoHS compliant |
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