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參數(shù)資料
| 型號： | W78E51B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 8-BIT MTP Monitor Microcontroller(多次可編程的8位的監(jiān)視微控制器) |
| 中文描述： | 8位微控制器監(jiān)視器中期計劃（多次可編程的8位的監(jiān)視微控制器） |
| 文件頁數(shù)： | 15/23頁 |
| 文件大小： | 324K |
| 代理商： | W78E51B |
Preliminary W78E51B
Publication Release Date: December 1998
- 15 -
Revision A1
Data Write Cycle
PARAMETER
SYMBOL
T
DAW
MIN.
3 T
CP
-
1 T
CP
-
1 T
CP
-
6 T
CP
-
TYP.
-
MAX.
3 T
CP
+
-
UNIT
nS
ALE Low to WR Low
Data Valid to WR Low
T
DAD
-
nS
Data Hold from WR High
T
DWD
-
-
nS
WR Pulse Width
T
DWR
6 T
CP
-
nS
Note: "
" (due to buffer driving delay and wire loading) is 20 nS.
Port Access Cycle
PARAMETER
SYMBOL
T
PDS
T
PDH
T
PDA
MIN.
1 T
CP
0
1 T
CP
TYP.
-
-
-
MAX.
-
-
-
UNIT
nS
nS
nS
Port Input Setup to ALE Low
Port Input Hold from ALE Low
Port Output to ALE
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.
Program Operation
PARAMETER
SYMBOL
T
VPS
T
DS
T
DH
T
AS
T
AH
T
PWP
MIN.
2.0
2.0
2.0
2.0
0
290
TYP.
-
-
-
-
-
300
MAX.
-
-
-
-
-
310
UNIT
μ
S
μ
S
μ
S
μ
S
μ
S
μ
S
V
PP
Setup Time
Data Setup Time
Data Hold Time
Address Setup Time
Address Hold Time
CE
Program Pulse Width for
Program Operation
OECTRL Setup Time
OECTRL Hold Time
OE
Setup Time
T
OCS
T
OCH
T
OES
T
DFP
T
OEV
2.0
2.0
2.0
0
-
-
-
-
-
-
-
-
-
μ
S
μ
S
μ
S
nS
nS
OE
High to Output Float
Data Valid from
OE
130
150
Note: Flash data can be accessed only in flash mode. The RST pin must pull in V
IH
status, the ALE pin must pull in V
IL
status, and
the PSEN pin must pull in V
IH
status.
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相關(guān)代理商/技術(shù)參數(shù) |
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| W78E51B_05 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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| W78E51BF-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
| W78E51BF-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
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