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4 data memory write – Cypress Perform CY7C68013 User Manual

Page 40

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CY7C68013A, CY7C68014A
CY7C68015A, CY7C68016A

Document #: 38-08032 Rev. *L

Page 40 of 62

10.4 Data Memory Write

Figure 14. Data Memory Write Timing Diagram

When using the AUTPOPTR1 or AUTOPTR2 to address external memory, the address of AUTOPTR1 is only active while either RD#
or WR# are active. The address of AUTOPTR2 is active throughout the cycle and meets the above address valid time for which is
based on the stretch value.

t

OFF1

CLKOUT

A[15..0]

WR#

t

AV

D[7..0]

t

CL

t

STBL

t

STBH

data out

t

OFF1

CLKOUT

A[15..0]

WR#

t

AV

D[7..0]

t

CL

data out

Stretch = 1

t

ON1

t

SCSL

t

AV

CS#

t

ON1

CS#

Table 17. Data Memory Write Parameters

Parameter

Description

Min

Max

Unit

Notes

t

AV

Delay from Clock to Valid Address

0

10.7

ns

t

STBL

Clock to WR Pulse LOW

0

11.2

ns

t

STBH

Clock to WR Pulse HIGH

0

11.2

ns

t

SCSL

Clock to CS Pulse LOW

13.0

ns

t

ON1

Clock to Data Turn-on

0

13.1

ns

t

OFF1

Clock to Data Hold Time

0

13.1

ns

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