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參數資料
型號: W78LE52-24
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MTP MICROCONTROLLER
中文描述: 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數: 16/22頁
文件大小: 309K
代理商: W78LE52-24
Preliminary W78LE52
- 16 -
Program Operation, continued
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Address Hold Time
T
AH
0
-
-
μ
S
μ
S
CE
Program Pulse Width for
Program Operation
T
PWP
290
300
310
OECTRL Setup Time
T
OCS
2.0
-
-
μ
S
μ
S
μ
S
OECTRL Hold Time
T
OCH
2.0
-
-
OE
Setup Time
T
OES
2.0
-
-
OE
High to Output Float
T
DFP
0
-
130
nS
Data Valid from
OE
T
OEV
-
-
150
nS
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.
TIMING WAVEFORMS
Program Fetch Cycle
S1
XTAL1
S2
S3
S4
S5
S6
S1
S2
S3
S4
S5
S6
ALE
PORT 2
A0-A7
A0-A7
Data
A0-A7
Code
T
A0-A7
Data
Code
PORT 0
PSEN
PDH,
T
PDZ
T
PDA
T
AAH
T
AAS
T
PSW
T
APL
T
ALW
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