EDS5116ABTA-6B View Datasheet(PDF) - Elpida Memory, Inc

Part Name

Description

Manufacturer

EDS5116ABTA-6B

512M bits SDRAM / 54-pin TSOP

Elpida Memory, Inc 

EDS5104ABTA, EDS5108ABTA, EDS5116ABTA

DQM, UDQM and LDQM (input pins)

DQM controls input/output buffers. In 32M × 16 products, UDQM and LDQM control upper byte (DQ8 to DQ15) and

lower byte (DQ0 to DQ7).

Read operation: If DQM is High, the output buffer becomes High-Z. If the DQM is Low, the output buffer becomes

Low-Z. (The latency of DQM during reading is 2 clocks.)

Write operation: If DQM is High, the previous data is held (the new data is not written). If DQM is Low, the data is

written. (The latency of DQM during writing is 0 clock.)

DQ0 toDQ15 (input/output pins)

Data is input to and output from these pins (DQ0 to DQ3; EDS5104AB , DQ0 to DQ7; EDS5108AB, DQ0 to DQ15;

EDS5116AB).

VDD, VSS, VDDQ, VSSQ (Power supply)

VDD and VSS are power supply pins for internal circuits. VDDQ and VSSQ are power supply pins for the output

buffers.

Preliminary Data Sheet E0250E10 (Ver. 1.0)

14

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