Cypress STK16C88-3 manual AC Switching Characteristics, Switching Waveforms, Sram Read Cycle

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STK16C88-3

AC Switching Characteristics

 

 

 

 

 

SRAM Read Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter

Description

 

35 ns

Unit

Cypress

 

Alt

Min

 

Max

Parameter

 

 

 

 

 

 

 

 

 

 

 

 

tACE

 

tELQV

Chip Enable Access Time

 

 

35

ns

tRC [5]

 

tAVAV, tELEH

Read Cycle Time

35

 

 

ns

tAA [6]

 

tAVQV

Address Access Time

 

 

35

ns

tDOE

 

tGLQV

Output Enable to Data Valid

 

 

15

ns

tOHA [6]

 

tAXQX

Output Hold After Address Change

5

 

 

ns

tLZCE [7]

 

tELQX

Chip Enable to Output Active

5

 

 

ns

tHZCE [7]

 

tEHQZ

Chip Disable to Output Inactive

 

 

13

ns

tLZOE [7]

 

tGLQX

Output Enable to Output Active

0

 

 

ns

tHZOE [7]

 

tGHQZ

Output Disable to Output Inactive

 

 

13

ns

tPU [4]

 

tELICCH

Chip Enable to Power Active

0

 

 

ns

tPD [3, 4]

 

tEHICCL

Chip Disable to Power Standby

 

 

35

ns

Switching Waveforms

Figure 5. SRAM Read Cycle 1: Address Controlled [5, 6]

$''5(66

W5&

W$$

W2+$

'4 '$7$287

'$7$9$/,'

Figure 6. SRAM Read Cycle 2: CE and OE Controlled [5]

$''5(66

&(

2(

'4 '$7$287

,&&

W5&

W$&(

W/=&(

W'2(

W/=2(

W38 $&7,9(

67$1'%<

W3'

W+=&(

W+=2(

'$7$9$/,'

Notes

5.WE must be HIGH during SRAM Read Cycles.

6.I/O state assumes CE and OE < VIL and WE > VIH; device is continuously selected.

7.Measured ±200 mV from steady state output voltage.

Document Number: 001-50594 Rev. **

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Contents Features Logic Block DiagramFunctional Description Cypress Semiconductor Corporation 198 Champion CourtPin Configurations Write Enable Input, Active LOW. When the chip is enabledOutput Enable, Active LOW. The active LOW Power Supply Inputs to the DeviceHardware Recall Power Up Device OperationSram Read Sram WriteLow Average Active Power Hardware ProtectNoise Considerations Best PracticesSoftware STORE/RECALL Mode Selection 13 a 0x0E38 Read Sram Output DataRead Sram Output Data 0x03E0 Read Sram Output Data 0x303FDC Electrical Characteristics Maximum RatingsOperating Range Data Retention and EnduranceCapacitance AC Test ConditionsThermal Resistance Description Test Conditions Max UnitAC Switching Characteristics Switching WaveformsSram Read Cycle Parameter Description 35 ns Unit Cypress Alt Min MaxChip Enable To End of Write Data Setup to End of WriteAddress Setup to End of Write Address Setup to Start of WriteAutoStorePlus or Power Up Recall Power up Recall DurationLow Voltage Reset Level Parameter Alt Description STK16C88-3 Unit Min MaxSoftware Controlled STORE/RECALL Cycle Parameter Alt Description 35 ns Unit MinPart Numbering Nomenclature STK16C88 3W F 35 Ordering InformationPackage Diagrams Pin 600 Mil PdipSales, Solutions and Legal Information Worldwide Sales and Design Support Products PSoC SolutionsNew data sheet Document History