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Revision History
Revision 0.1 (Nov. 2010) -First release.
EM44CM1688LBB
Nov. 2010
1/29
www.eorex.com
EM44CM1688LBB
1Gb (8M×8Bank×16) Double DATA RATE 2 SDRAM
Features
• JEDEC Standard VDD/VDDQ = 1.8V±0.1V.
• All inputs and outputs are compatible with SSTL_18 interface. • Fully differential clock inputs (CK, /CK) operation. • Eight Banks • Posted CAS • Bust length: 4 and 8. • Programmable CAS Latency (CL): 5 • Programmable Additive Latency (AL): 0, 1, 2, 3, 4, 5 & 6. • Write Latency (WL) =Read Latency (RL) -1. • Read Latency (RL) = Programmable Additive Latency (AL) + CAS Latency (CL) • Bi-directional Differential Data Strobe (DQS). • Data inputs on DQS centers when write. • Data outputs on DQS, /DQS edges when read. • On chip DLL align DQ, DQS and /DQS transition with CK transition.