w77e58 Winbond Electronics Corp America, w77e58 Datasheet - Page 78

• Manufacturer Part Number: w77e58
• Description: 8 Bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

AC Specification, continued
MOVX CHARACTERISTICS USING STRECH MEMORY CYCLES
Data Access ALE Pulse Width
Address Hold After ALE Low for
MOVX write
Data Hold after Read
Data Float after Read
ALE Low to Valid Data In
Port 0 Address to Valid Data In
RD
RD
WR
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 Low to Valid Instruction In
PSEN Low to Address Float
RD Low to Address Float
Pulse Width
Low to Valid Data In
Pulse Width
PARAMETER
PARAMETER
SYMBOL
t
t
t
t
t
t
t
t
t
LLHL2
LLAX2
RLRH
WLWH
RLDV
RHDX
RHDZ
LLDV
AVDV1
t
t
t
t
t
t
t
t
t
SYMBOL
PLIV
PXIX
PXIZ
AVIV1
AVIV2
PLAZ
RHDX
RHDZ
RLAZ
1.5t
2.0t
0.5t
2.0t
t
2.0t
t
0
MCS
MCS
VARIABLE
CLCL
CLCL
CLCL
CLCL
CLCL
- 10
- 10
- 78 -
CLOCK
MIN
- 5
- 5
- 5
- 5
- 5
VARIABLE
CLOCK
MIN
2.0t
t
t
2.0t
2.5t
t
3.0t
2.0t
0
0
0
MCS
CLCL
MCS
Preliminary W77E58
VARIABLE
CLCL
CLCL
CLCL
CLCL
CLCL
- 20
CLOCK
+ 2t
- 5
MAX
- 20
- 5
- 5
- 20
- 5
CLCL
- 40
2.0t
3.0t
3.5t
VARIABLE
0.5t
CLOCK
t
t
CLCL
CLCL
MAX
CLCL
CLCL
CLCL
CLCL
UNITS
- 5
- 5
nS
nS
nS
nS
nS
nS
nS
nS
nS
- 20
- 20
- 20
- 5
STRECH
t
t
t
t
t
t
t
UNITS
t
t
t
t
t
t
t
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
nS
nS
nS
nS
nS
nS
nS
nS
nS
= 0
= 0
= 0
= 0
= 0
= 0
= 0
>0
>0
>0
>0
>0
>0
>0