W77C32F-40 Nuvoton Technology Corporation of America, W77C32F-40 Datasheet - Page 70

• Manufacturer Part Number: W77C32F-40
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W77C32F-40

• Lead Free Status / Rohs Status: Supplier Unconfirmed

17.3 A.C. Characteristics
17.3.1 External Clock Characteristics
Note: Duty cycle is 50 %.
17.3.2 A.C. Specification
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
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
Input Instruction Hold After PSEN
Input Instruction Float After PSEN
Port 0 Address to Valid Instr. In
Port 2 Address to Valid Instr. In
Data Hold After Read
Data Float After Read
PSEN Pulse Width
PSEN Low to Valid Instruction In
PSEN Low to Address Float
RD Low to Address Float
PARAMETER
PARAMETER
SYMBOL
t
t
t
t
t
CHCL
CHCX
CLCX
CLCH
CHCL
MIN.
12.5
12.5
t
- 70 -
t
CLCH
CLCX
-
-
1/t
SYM.
t
t
t
t
t
t
t
t
t
t
t
t
t
t
LLAX1
LLAX2
t
t
AVIV1
AVIV2
RHDX
RHDZ
PLPH
LHLL
AVLL
PLAZ
RLAZ
LLPL
PXIX
PXIZ
LLIV
PLIV
CLCL
t
CLCL
TYP.
-
-
-
-
CLOCK MIN.
1.5 t
0.5 t
0.5 t
0.5 t
0.5 t
2.0 t
VARIABLE
t
CHCX
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0
0
0
0
W77C32/W77C032
MAX.
- 5
- 5
- 5
- 5
- 5
- 5
10
10
-
-
CLOCK MAX.
2.5 t
2.0 t
3.0 t
3.5 t
0.5 t
VARIABLE
UNITS
t
t
CLCL
CLCL
nS
nS
nS
nS
CLCL
CLCL
CLCL
CLCL
CLCL
40
- 5
- 5
- 20
- 20
- 20
- 20
- 5
NOTES
UNITS
MHz
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS