EM47DM0888SBA datasheet(8/39 Pages) EOREX

8 / 39 page

EM47DM0888SBA

May. 2011

8/39

www.eorex.com

Pin Capacitance

Symbol

Parameters

Pins

Min.

Max.

Unit

Notes

CCK

Input pin capacitance, CK, /CK

0.8

1.4

1,3

CDCK

Delta input pin capacitance,

CK, /CK

0.15

1,2

CIN_CTRL

Input pin capacitance, control

pins

0.75

1.3

CDIN_CTRL

Delta input pin capacitance,

control pins

/CS,CKE,ODT

-0.4

0.2

1,4

CIN_ADD_CMD

Input pin capacitance, address

and command pins

0.75

1.3

CDIN_ADD_CMD Delta input pin capacitance,

address and command pins

/RAS,/CAS,/WE,

Address

-0.4

0.4

1,5

CIO

Input/output pins capacitance

1.5

2.5

1,6

CDIO

Delta input/output pins

capacitance

DQ,DQS,/DQS

TDQS,/TDQS,

-0.5

0.3

1,7,8

CDDQS

Delta input/output pins

capacitance

DQS, /DQS

0.15

1,10

CZQ

Input/output pin capacitance,

1,9

Notes1.

VDD, VDDQ, VSS, VSSQ applied and all other pins (except the pin under test) floating. VDD = VDDQ

=1.5V, VBIAS=VDD/2.

Notes2.

Absolute value of CCK(CK-pin) - CCK(/CK-pin).

Notes3

. CCK (min.) will be equal to CIN (min.)

Notes4.

CDIN_CTRL = CIN_CTRL - 0.5*(CCK(CK-pin) + CCK(/CK-pin))

Notes5

. CDIN_ADD_CMD = CIN_ADD_CMD - 0.5*(CCK(CK-pin) + CCK(/CK-pin))

Notes6.

Although the DM, TDQS and /TDQS pins have different functions, the loading matches DQ and DQS.

Notes7.

DQ should be in high impedance state.

Notes8.

CDIO = CIO (DQ, DM) - 0.5*(CIO(DQS-pin) + CIO(/DQS-pin)).

Notes9.

Maximum external load capacitance on ZQ pin is 5pF.

Notes10.

Absolute value of CIO(DQS) - CIO(/DQS).

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