NT5SV16M8CT View Datasheet(PDF) - Nanya Technology

Part Name

Description

Manufacturer

NT5SV16M8CT

128Mb Synchronous DRAM

Nanya Technology 

NT5SV32M4CT

NT5SV16M8CT

NT5SV8M16CT

128Mb Synchronous DRAM

Power Down Mode

In order to reduce standby power consumption, two power down modes are available: Precharge and Active Power Down

mode. To enter Precharge Power Down mode, all banks must be precharged and the necessary precharge delay (tRP) must

occur before the SDRAM can enter the power down mode. If a bank is activated but not performing a Read or Write operation,

Active Power Down mode will be entered. (Issuing a Power Down Mode Command when the device is performing a Read or

Write operation causes the device to enter Clock Suspend mode. See the following Clock Suspend section.) Once the Power

Down mode is initiated by holding CKE low, all of the receiver circuits except CKE are gated off. The Power Down mode does

not perform any refresh operations, therefore the device can’t remain in Power Down mode longer than the Refresh period

(tREF) of the device.

The Power Down mode is exited by bringing CKE high. When CKE goes high, a No Operation Command (or Device Deselect

Command) is required on the next rising clock edge.

Power Down Mode Exit Timing

Tm

CK

CKE

COMMAND

: “H” or “L”

Tm+1

Tm+2

Tm+3

Tm+4

Tm+5

Tm+6

Tm+7

Tm+ 8

tCK

tCES(min)

NOP

COMMAND

NOP

NOP

NOP

NOP

NOP

REV 1.0

May, 2001

26

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NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

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