W949D6KB datasheet(49/60 Pages) WINBOND

49 / 60 page

W949D6KB / W949D2KB

Publication Release Date: Dec. 11, 2014

Revision: A01-002

- 49 -

ELECTRICAL CHARACTERISTICS

9.1

Absolute Maximum Ratings

PARAMETER

SYMBOL

VALUES

UNITS

MIN.

MAX.

Voltage on VDD relative to VSS

VDD

-0.5

2.3

Voltage on VDDQ relative to VSS

VDDQ

-0.5

2.3

Voltage on any pin relative to VSS

VIN, VOUT

-0.5

2.3

Operating Case Temperature

TCASE

-25

°C

-40

Storage Temperature

TSTG

-55

150

°C

Short Circuit Output Current

IOUT

±50

Power Dissipation

1.0

Notes:

Stresses greater than those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress

rating only and functional operation of the device at these or any other conditions above those indicated in the operational

sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect

reliability.

9.2

Input / Output Capacitance

PARAMETER

SYMBOL

MIN.

MAX.

UNITS

NOTES

Input Capacitance CK, CK

CCK

1.5

3.0

Input Capacitance delta CK, CK

CDCK

0.25

Input capacitance, all other input-only pins

1.5

3.0

Input capacitance delta, all other input-only pins

CDI

0.5

Input/ output capacitance, DQ,DM,DQS

CIO

3.0

5.0

Input/output capacitance delta, DQ, DM, DQS

CDIO

0.5

Notes



1. These values are guaranteed by design and are tested on a sample base only.

2. These capacitance values are for single monolithic devices only. Multiple die packages will have parallel capacitive loads.

3. Although DM is an input-only pin, the input capacitance of this pin must model the input capacitance of the DQ and DQS

pins. This is required to match signal propagation times of DQ, DQS and DM in the system.

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