IS61DDB42M18A datasheet(26/32 Pages) ISSI

No. de pieza	IS61DDB42M18A

Descripción Electrónicos	Synchronous pipeline read with late write operation

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Fabricante Electrónico	ISSI [Integrated Silicon Solution, Inc]

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IS61DDB42M18A

IS61DDB41M36A

Integrated Silicon Solution, Inc.- www.issi.com

Rev. A

10/02/2014

26

JTAG AC Test Conditions

(Over the Operating Temperature Range, VDD=1.8V±5%, VDDQ=1.5V/1.8V)

Parameter

Symbol

Conditions

Units

Input Pulse High Level

VIH1

1.3

V

Input Pulse Low Level

VIL1

0.5

V

Input Rise Time

TR1

1.0

ns

Input Fall Time

TF1

1.0

ns

Input and Output Timing Reference Level

0.9

V

JTAG AC Characteristics

(Over the Operating Temperature Range, VDD=1.8V±5%, VDDQ=1.5V/1.8V)

Parameter

Symbol

Min

Max

Units

TCK cycle time

tTHTH

50

–

ns

TCK high pulse width

tTHTL

20

–

ns

TCK low pulse width

tTLTH

20

–

ns

TMS Setup

tMVTH

5

–

ns

TMS Hold

tTHMX

5

–

ns

TDI Setup

tDVTH

5

–

ns

TDI Hold

tTHDX

5

–

ns

Capture Setup

tCVTH

5

–

ns

Capture Hold

tTHCX

5

–

ns

TCK Low to Valid Data*

tTLOV

–

10

ns

TCK Low to Invalid Data*

tTLQX

0

–

ns

Note: See AC Test Loading(c)

JTAG Timing Diagram

TCK

TMS

tTHTH

tTHTL

tTLTH

tTHMX

tMVTH

TDI

TDO

tTLOV

tTHDX

tDVTH

tTLOX

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IS61DDB42M18A Datasheet(PDF) 26 Page - Integrated Silicon Solution, Inc

IS61DDB42M18A Datasheet(HTML) 26 Page - Integrated Silicon Solution, Inc

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