W78E58BP-40 Nuvoton Technology Corporation of America, W78E58BP-40 Datasheet - Page 25

• Manufacturer Part Number: W78E58BP-40
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W78E58BP-40

• Lead Free Status / Rohs Status: Supplier Unconfirmed

7.3.3
Notes:
7.3.4
Note: " Δ " (due to buffer driving delay and wire loading) is 20 nS.
7.3.5
Note: Ports are read during S5P2, and output data becomes available at the end of S6P2. The timing data are referenced to
ALE Low to RD Low
RD Low to Data Valid
Data Hold from RD High
Data Float from RD High
RD Pulse Width
ALE Low to WR Low
Data Valid to WR Low
Data Hold from WR High
Port Input Setup to ALE Low
Port Input Hold from ALE Low
Port Output to ALE
WR Pulse Width
1. Data memory access time is 8 T
2. " Δ " (due to buffer driving delay and wire loading) is 20 nS.
ALE, since it provides a convenient reference.
Data Read Cycle
Data Write Cycle
Port Access Cycle
PARAMETER
PARAMETER
PARAMETER
CP
.
SYMBOL
T
T
T
T
T
DAR
DDA
DDH
DRD
DDZ
SYMBOL
SYMBOL
T
T
T
T
T
T
T
DWD
DWR
PDS
PDH
PDA
DAW
DAD
- 25 -
3 T
6 T
MIN.
CP
0
0
CP
-
-Δ
-Δ
1 TCP
1 TCP
3 T
1 T
1 T
6 T
MIN.
MIN.
0
CP
CP
CP
CP
6 T
TYP.
-Δ
-Δ
-Δ
-Δ
W78E58B/W78E058B
Publication Release Date: April 22, 2008
-
-
-
-
CP
TYP.
6 T
TYP.
-
-
-
3 T
-
-
-
4 T
2 T
2 T
MAX.
CP
CP+
-
CP
CP
CP
Δ
3 T
MAX.
MAX.
-
-
-
CP
UNIT
-
-
-
nS
nS
nS
nS
nS
+Δ
Revision A9
NOTES
UNIT
UNIT
nS
nS
nS
1, 2
nS
nS
nS
nS
1
2