The H2A401G0866B is a 1G bits DDR3 SDRAM, organized as 16,777,216 words × 8 banks × 8 bits. This device achieves high speed transfer rates up to 1600 Mb/sec/pin (DDR3-1600) for various applications.
The H2A401G0866B is designed to comply with the following key DDR3 SDRAM features such as posted /CAS, programmable /CAS Write Latency (CWL), ZQ calibration, on die termination and asynchronous reset. All of the control and address inputs are synchronized with a pair of externally supplied differential clocks. Inputs are latched at the cross point of differential clocks (CK rising and /CK falling). All I/Os are synchronized with a differential DQS-DQS# pair in a source synchronous fashion.
Double Data Rate architecture: two data transfers per clock cycle
Eight internal banks for concurrent operation
8 bit prefetch architecture
CAS Latency: 6, 7, 8, 9, 10 and 11 Burst length 8 (BL8) and burst chop 4 (BC4) modes: fixed via mode register (MRS) or selectable OnThe-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
Interface: SSTL_15
Packaged in WBGA 78 Ball (8x10.5 mm2 ), using lead free materials with RoHS compliant
This site uses cookies to provide you with a better user experience. Our website uses cookies, which could include also third party cookies. For more information please visit our Privacy and Cookie Policy page. By continuing to use the site or closing this banner, you are agreeing to our terms of use.
Close