W78C32C/W78C032C
6.3.4 Data Write Cycle
PARAMETER
SYMBOL
TDAW
MIN.
TYP.
MAX.
UNIT
nS
-
3 TCP-Δ
1 TCP-Δ
1 TCP-Δ
6 TCP-Δ
3 TCP+Δ
ALE Low to WR Low
Data Valid to WR Low
Data Hold from WR High
WR Pulse Width
TDAD
-
-
-
-
-
nS
TDWD
nS
TDWR
6 TCP
nS
Note: "Δ" ( due to buffer driving delay and wire loading) is 20 nS.
6.3.5 Port Access Cycle
PARAMETER
Port Input Setup to ALE Low
Port Input Hold from ALE Low
Port Output to ALE
SYMBOL
TPDS
MIN.
1 TCP
0
TYP.
MAX.
UNIT
nS
-
-
-
-
-
-
TPDH
nS
TPDA
1 TCP
nS
Note: Ports are read during S5P2, and output data becomes available at the end of S6P2. The timing data are referenced to
ALE, since it provides a convenient reference.
Publication Release Date: December 4, 2006
- 11 -
Revision A6
WINBOND [ WINBOND ]
