EM48AM1684LBA datasheet(8/18 Pages) EOREX

tên linh kiện	EM48AM1684LBA

Giải thích chi tiết về linh kiện	256Mb (4M횞4Bank횞16) Synchronous DRAM

PDF	18 Pages

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nhà sản xuất	EOREX [Eorex Corporation]

Trang chủ	http://www.eorex.com

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eorex

EM48AM1684LBA

Mar. 2009

www.eorex.com

AC Operating Test Conditions

(VDD=3.3V±0.3V, TA=0°C ~70°C)

Item

Conditions

Output Reference Level

0.5*VDDQ

Output Load

See diagram as below

Input Signal Level

0.8*VDDQ /0.2*VDDQ

Transition Time of Input Signals

1ns

Input Reference Level

0.5*VDDQ

AC Operating Test Characteristics

(VDD=3.3V±0.3V, TA=0°C ~70°C)

-7.5

Symbol

Parameter

Min.

Max.

Units

CL=3

7.5

tCK

Clock Cycle Time

CL=2

9.5

CL=3

5.4

tAC

Access Time form CLK

CL=2

tCH

CLK High Level Width

2.5

tCL

CLK Low Level Width

2.5

CL=3

2.5

tOH

Data-out Hold Time

CL=2

2.5

CL=3

tHZ

Data-out High Impedance

Time

(Note 5)

CL=2

tLZ

Data-out Low Impedance Time

tIH

Input Hold Time

0.8

tIS

Input Setup Time

1.5

* All voltages referenced to VSS.

Note 5: tHZ defines the time at which the output achieve the open circuit condition and is not referenced to

output voltage levels.

8/18

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