m66257fp Renesas Electronics Corporation., m66257fp Datasheet - Page 7

• Manufacturer Part Number: m66257fp
• Description: 5120 ? 8-bit ? 2 Line Memory Fifo
• Manufacturer: Renesas Electronics Corporation.

M66257FP
Operating Timing
Write Cycle
Write Reset Cycle
REJ03F0251-0200 Rev.2.00 Sep 14, 2007
Page 7 of 12
WCK
WRES
Dn
WCK
WE
Dn
Cycle n − 1
Cycle n
t
t
WCK
WCK
t
t
DS
DS
(n − 1)
(n)
t
t
t
t
DH
WCKH
DH
Cycle n + 1
NRESH
Cycle n
t
t
WCKL
RESS
(n + 1)
t
DS
(n)
t
Cycle n + 2
t
DH
WEH
t
NWES
Reset cycle
t
(n + 2)
DS
t
DH
Disable cycle
t
NWEH
t
RESH
Cycle 0
t
t
NRESS
WES
(0)
Cycle n + 3
Cycle 1
(n + 3)
(1)
Cycle n + 4
Cycle 2
WRES = "H"
WE = "L"
(n + 4)
(2)