Cypress CY7C67300 Manual De Usuario
CY7C67300
Document #: 38-08015 Rev. *J
Page 87 of 99
SRAM Write Cycle
Notes
16. t
WPW
The write pulse width = 18.8 ns min. for zero and one wait states. The write pulse = 18.8 ns + (n – 1)*T for wait states = n, n > 1, T = 48 MHz clock period.
17. Write timing is applicable for nXMEMSEL, nXRAMSEL and nXROMSEL.
Table 138. SRAM Write Cycle Parameters
Parameter
Description
Min
Typical
Max
Unit
t
AW
Write Address Valid to WE LOW
7
ns
t
CSW
CS LOW to WE LOW
7
ns
t
DW
Data Valid to WE HIGH
15
ns
t
WPW
WE Pulse Width
15
ns
t
DH
Data Hold from WE HIGH
4.5
ns
t
WC
WE HIGH to CS HIGH
13
ns
Address
CS
WE
Dout
t
AW
t
CSW
t
WPW
t
DW
t
WC
t
DH
Data Valid