Cypress CY7C1387F, CY7C1387D manual Truth Table for Read/Write 6, Function CY7C1386D/CY7C1386F

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CY7C1386D, CY7C1386F

CY7C1387D, CY7C1387F

Truth Table for Read/Write [6, 9]

Function (CY7C1386D/CY7C1386F)

GW

BWE

BWD

BWC

BWB

BWA

Read

H

H

X

X

X

X

Read

H

L

H

H

H

H

Write Byte A – (DQA and DQPA)

H

L

H

H

H

L

Write Byte B – (DQB and DQPB)

H

L

H

H

L

H

Write Bytes B, A

H

L

H

H

L

L

Write Byte C – (DQC and DQPC)

H

L

H

L

H

H

Write Bytes C, A

H

L

H

L

H

L

Write Bytes C, B

H

L

H

L

L

H

Write Bytes C, B, A

H

L

H

L

L

L

Write Byte D – (DQD and DQPD)

H

L

L

H

H

H

Write Bytes D, A

H

L

L

H

H

L

Write Bytes D, B

H

L

L

H

L

H

Write Bytes D, B, A

H

L

L

H

L

L

Write Bytes D, C

H

L

L

L

H

H

Write Bytes D, C, A

H

L

L

L

H

L

Write Bytes D, C, B

H

L

L

L

L

H

Write All Bytes

H

L

L

L

L

L

Write All Bytes

L

X

X

X

X

X

Truth Table for Read/Write [6, 9]

Function (CY7C1387D/CY7C1387F)

GW

BWE

BWB

BWA

Read

H

H

X

X

Read

H

L

H

H

Write Byte A – (DQA and DQPA)

H

L

H

L

Write Byte B – (DQB and DQPB)

H

L

L

H

Write All Bytes

H

L

L

L

Write All Bytes

L

X

X

X

Note

9. Table only lists a partial listing of the byte write combinations. Any Combination of BWX is valid Appropriate write will be done based on which byte write is active.

Document Number: 38-05545 Rev. *E

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Contents 250 MHz 200 MHz 167 MHz Unit FeaturesSelection Guide Cypress Semiconductor CorporationLogic Block Diagram CY7C1386D/CY7C1386F 3 512K x Logic Block Diagram CY7C1387D/CY7C1387F 3 1M xCY7C1386D 512K X Pin Configurations Pin Tqfp Pinout 3 Chip EnablesCY7C1387D 1M x Pin Configurations Ball BGA Pinout 1 Chip Enable Pin Configurations Ball Fbga Pinout 3 Chip Enable Name Description Power supply inputs to the core of the devicePin Definitions Byte write select inputs, active LOW. Qualified withFunctional Overview Linear Burst Address Table Mode = GND Interleaved Burst Address Table Mode = Floating or VDDZZ Mode Electrical Characteristics Operation Add. Used Function CY7C1386D/CY7C1386F Truth Table for Read/Write 6Function CY7C1387D/CY7C1387F TAP Controller State Diagram TAP Controller Block DiagramBypass Register TAP Instruction SetTAP AC Switching Characteristics TAP Timing3V TAP AC Output Load Equivalent 3V TAP AC Test Conditions5V TAP AC Test Conditions GND VIN VddqIdentification Codes Identification Register DefinitionsScan Register Sizes Register Name Bit SizeBit # Ball ID Ball BGA Boundary Scan Order 14Internal M10 A10 B10M11 G10 F10 InternalOperating Range Electrical CharacteristicsMaximum Ratings Range AmbientThermal Resistance CapacitanceAC Test Loads and Waveforms Switching Characteristics Over the Operating Range 20 Description 250 200 167 Unit Parameter MinSwitching Waveforms Read Cycle TimingWrite Cycle Timing 26 AdscRead/Write Cycle Timing 26, 28 ZZ Mode Timing 30 Ordering Information CY7C1386D, CY7C1386F CY7C1387D, CY7C1387F Package Diagrams Pin Thin Plastic Quad Flat pack 14 x 20 x 1.4 mmBall BGA 14 x 22 x 2.4 mm Ball Fbga 13 x 15 x 1.4 mm Document History Issue Date Orig. Description of ChangeDocument Number