Cypress CY7C1346H manual Switching Waveforms, Read Cycle Timing17

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CY7C1346H

Switching Waveforms

Read Cycle Timing[17]

tCYC

CLK

tCH

tADS tADH

ADSP

ADSC

tAS tAH

tCL

tADS tADH

ADDRESS

GW, BWE,

BW[A:D]

CE

A1

tCES tCEH

A2

A3

tWES tWEH

Burst continued with

new base address

 

 

Deselect

 

cycle

tADVS

tADVH

ADV

 

 

 

 

 

 

ADV

 

 

 

 

 

 

 

 

 

 

suspends

 

 

 

 

OE

 

 

 

 

 

burst.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tOEV

tCO

 

 

 

 

 

 

 

 

tOEHZ

tOELZ

tDOH

 

 

 

 

 

tCHZ

 

 

tCLZ

 

 

 

 

 

 

 

 

Data Out (Q)

High-Z

Q(A1)

 

Q(A2)

Q(A2 + 1)

Q(A2 + 2)

Q(A2 + 3)

Q(A2)

Q(A2 + 1)

 

 

tCO

 

 

 

 

 

 

Burst wraps around

 

 

 

 

 

 

 

 

 

 

 

Single READ

 

 

 

 

BURST READ

 

to its initial state

 

 

 

 

 

 

 

 

 

 

 

 

 

DON’T CARE

UNDEFINED

 

 

 

Note:

17. On this diagram, when CE is LOW, CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH, CE1 is HIGH or CE2 is LOW or CE3 is HIGH.

Document #: 38-05672 Rev. *B

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Contents Cypress Semiconductor Corporation FeaturesLogic Block Diagram 166 MHz Unit Pin ConfigurationSelection Guide CY7C1346HByte Write Select Inputs, active LOW . Qualified with Power supply inputs to the core of the devicePin Definitions Name DescriptionFunctional Overview Burst Sequences Interleaved Burst Address Table Mode = Floating or VDDLinear Burst Address Table Mode = GND ZZ Mode Electrical CharacteristicsAdsp Adsc ADV Write CLK Next Cycle Add. UsedFunction Truth Table for Read/Write2Ambient Range Maximum RatingsOperating Range AC Test Loads and Waveforms Capacitance10Thermal Resistance10 Switching Characteristics Over the Operating Range 11 Read Cycle Timing17 Switching WaveformsADV Write Cycle Timing17CLZ Read/Write Cycle Timing17, 19DON’T Care ZZ Mode Timing 21Pin Tqfp 14 x 20 x 1.4 mm Package DiagramsOrdering Information RXU Issue Date Orig. Description of ChangeDocument History PCI