Cypress manual CY7C132, CY7C136, CY7C136A, CY7C142, CY7C146, Switching Characteristics

CY7C132, CY7C136

CY7C136A, CY7C142, CY7C146

Switching Characteristics

Over the Operating Range (Speeds -35, -45, -55) [8]

7C132-35

7C132-45

7C132-55

7C136-55

7C136-35

7C136-45

7C136A-55

Parameter

Description

7C142-35

7C142-45

Unit

7C142-55

7C146-35

7C146-45

7C146-55

Min

Max

Min

Max

Min

Max

Read Cycle

tRC

Read Cycle Time

35

45

55

ns

tAA

Address to Data Valid[9]

35

45

55

ns

tOHA

Data Hold from Address Change

0

0

0

ns

tACE

CE

LOW to Data Valid[9]

35

45

55

ns

tDOE

OE

LOW to Data Valid[9]

20

25

25

ns

tLZOE

OE

LOW to Low Z[7, 10]

3

3

3

ns

tHZOE

OE

HIGH to High Z[7, 10, 11]

20

20

25

ns

tLZCE

CE

LOW to Low Z[7, 10]

5

5

5

ns

tHZCE

CE

HIGH to High Z[7, 10, 11]

20

20

25

ns

tPU

CE

LOW to Power Up[7]

0

0

0

ns

tPD

CE

HIGH to Power Down[7]

35

35

35

ns

Write Cycle[12]

tWC

Write Cycle Time

35

45

55

ns

tSCE

CE

LOW to Write End

30

35

40

ns

tAW

Address Setup to Write End

30

35

40

ns

tHA

Address Hold from Write End

2

2

2

ns

tSA

Address Setup to Write Start

0

0

0

ns

tPWE

R/W

Pulse Width

25

30

30

ns

tSD

Data Setup to Write End

15

20

20

ns

tHD

Data Hold from Write End

0

0

0

ns

tHZWE

R/W

LOW to High Z [7]

20

20

25

ns

tLZWE

R/W

HIGH to Low Z [7]

0

0

0

ns

Busy/Interrupt Timing

tBLA

BUSY

LOW from Address Match

20

25

30

ns

tBHA

BUSY

HIGH from Address Mismatch[13]

20

25

30

ns

tBLC

BUSY

LOW from

CE

LOW

20

25

30

ns

tBHC

BUSY

HIGH from

CE

HIGH[13]

20

25

30

ns

tPS

Port Set Up for Priority

5

5

5

ns

tWB

R/W

LOW after

BUSY

LOW[14]

0

0

0

ns

tWH

R/W

HIGH after

BUSY

HIGH

30

35

35

ns

tBDD

BUSY

HIGH to Valid Data

35

45

45

ns

tDDD

Write Data Valid to Read Data Valid

Note 15

Note 15

Note 15

ns

tWDD

Write Pulse to Data Delay

Note 15

Note 15

Note 15

ns

Document #: 38-06031 Rev. *E Page 6 of 15

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