CYDMX256A16/CYDMX256B16
CYDMX128A16/CYDMX128B16
CYDMX064A16/CYDMX064B16
Document Number: 001-08090 Rev. *I Page 13 of 25
AD Mux Port Write Cycle
[26]
t
WC
Write cycle time 65 – 65 – 90 – ns
t
SCS
CS# Low to write end 65 – 65 – 90 – ns
t
AVD
ADV# Low pulse 15 – 15 – 20 – ns
t
AVDS
Address setup to ADV# rising edge 15 – 15 – 20 – ns
t
AVDH
Address hold from ADV# rising edge 3 – 3 – 5 – ns
t
CSS
CS# setup to ADV# rising edge 7 – 7 – 10 – ns
t
WRL
WE# pulse width 28 – 28 – 45 – ns
t
BW
UB#/LB# Low to write end 28 – 28 – 45 – ns
t
SD
Data setup to write end 20 – 20 – 30 – ns
t
HD
Data hold from write end 0 – 0 – 0 – ns
t
LZWE
WE# High to IO Low Z 0 – 0 – 0 – ns
t
AVWE
ADV# High to WE# Low 0 – 0 – 0 – ns
Standard Port Read Cycle
[27]
t
RC
Read cycle time 40 – 60 – 60 – ns
t
AA
Address to data valid – 40 – 60 – 60 ns
t
OHA
Output hold from address change 5 – 5 – 5 – ns
t
ACS
CS# to data valid – 40 – 60 – 60 ns
t
DOE
OE# Low to data valid – 25 – 35 – 35 ns
t
LZOE
[28]
OE# Low to data Low Z 5 – 5 – 5 – ns
t
HZOE
OE# High to data High Z – 10 – 30 – 30 ns
t
LZCS
CS# Low to data Low Z 5 – 5 – 5 – ns
t
HZCS
CS# High to data High Z – 10 – 30 – 30 ns
t
LZBE
UB#/LB# Low to data Low Z 5 – 5 – 5 – ns
t
HZBE
UB#/LB# High to data High Z – 10 – 30 – 30 ns
t
ABE
UB#/LB# access time – 40 – 60 – 60 ns
Standard SRAM Port Write Cycle
t
WC
Write cycle time 40 – 60 – 60 – ns
t
SCS
CS# Low to Write End 30 – 50 – 50 – ns
t
AW
Address valid to write end 30 – 50 – 50 – ns
t
HA
Address hold from write end 0 – 0 – 0 – ns
t
SA
Address setup to write start 0 – 0 – 0 – ns
Switching Characteristics for V
CC
= 1.8 V (continued)
Over the Operating Range
[23]
(continued)
Parameter Description
CYDMX256A16
CYDMX128A16
CYDMX256B16
CYDMX128B16
CYDMX064B16
CYDMX256A16
CYDMX128A16
CYDMX064A16
Unit
–65 –65 –90
Min Max Min Max Min Max
Notes
26. AD Mux port timing applies to left AD Mux port and right port configured to AD Mux port.
27. Standard SRAM port timing applies to right port configured to standard SRAM port.
28. This parameter is guaranteed by not tested.
