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參數資料
型號: W77IC32P-25
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8 BIT MICROCONTROLLER
中文描述: 8-BIT, 25 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數: 64/70頁
文件大小: 375K
代理商: W77IC32P-25
Preliminary W77IC32
- 64 -
External Clock Characteristics
PARAMETER
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
SYMBOL
t
CHCX
t
CLCX
t
CLCH
t
CHCL
MIN.
12.5
12.5
-
-
TYP.
-
-
-
-
MAX.
-
-
10
10
UNITS
nS
nS
nS
nS
NOTES
Note: Duty cycle is 50 %.
AC Specification
PARAMETER
SYM.
VARIABLE
CLOCK
MIN.
0
1.5 t
CLCL
- 5
0.5 t
CLCL
- 5
0.5 t
CLCL
- 5
0.5 t
CLCL
- 5
0.5 t
CLCL
- 5
2.0 t
CLCL
- 5
VARIABLE
CLOCK
MAX.
40
2.5 t
CLCL
- 20
UNITS
Oscillator Frequency
ALE Pulse Width
Address Valid to ALE Low
Address Hold After ALE Low
Address Hold After ALE Low for MOVX Write
ALE Low to Valid Instruction In
ALE Low to PSEN Low
1/t
CLCL
t
LHLL
t
AVLL
t
LLAX1
t
LLAX2
t
LLIV
t
LLPL
t
PLPH
t
PLIV
t
PXIX
t
PXIZ
t
AVIV1
t
AVIV2
t
PLAZ
t
RHDX
t
RHDZ
t
RLAZ
MHz
nS
nS
nS
nS
nS
nS
nS
PSEN
Pulse Width
PSEN
Low to Valid Instruction In
Input Instruction Hold After PSEN
Input Instruction Float After PSEN
Port 0 Address to Valid Instr. In
Port 2 Address to Valid Instr. In
2.0 t
CLCL
- 20
t
CLCL
- 5
3.0 t
CLCL
- 20
3.5 t
CLCL
- 20
nS
0
0
nS
nS
nS
nS
nS
PSEN
Low to Address Float
Data Hold After Read
Data Float After Read
0
nS
nS
nS
t
CLCL
- 5
0.5 t
CLCL
- 5
RD
Low to Address Float
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