DS89C420 Dallas Semiconducotr, DS89C420 Datasheet - Page 47

• Manufacturer Part Number: DS89C420
• Description: Ultra-High-Speed Microcontroller
• Manufacturer: Dallas Semiconducotr

Instruction In
Input Instruction Hold
After PSEN
Input Instruction Float
After PSEN
Port 0 Address to Valid
Instruction In
Port 2 Address to Valid
Instruction In
Address Float
Data In
Data Hold After RD (P3.7)
Data Float After RD (P3.7)
MOVX ALE Low to Input
Data Valid
Port 0 Address to Valid
Data In
PSEN Low to Valid
PSEN Low to Port 0
RD Pulse Width (P3.7)
WR Pulse Width (P3.6)
RD (P3.7) Low to Valid
PARAMETER
SYMBOL
t
t
t
t
t
t
t
t
t
t
AVDV0
t
t
t
WLWH
AVIV0
AVIV2
RHDX
PLAZ
RLRH
RLDV
RHDZ
LLDV
PLIV
PXIX
PXIZ
t
t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 1
0
0
- 5 +
- 5 +
1 CYCLE
t
CLCL
t
t
CLCL
CLCL
MAX
t
STC1
- 15 +
- 18
- 18
t
t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 1
0
0
- 5 +
- 5 +
2 CYCLE
1.5t
t
CLCL
t
CLCL
MAX
CLCL
t
STC1
- 15 +
- 18
- 18
47 of 59
2t
2t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 1
0
0
- 5 +
- 5 +
4 CYCLE
2.5t
2t
2t
CLCL
CLCL
MAX
CLCL
t
STC1
- 15 +
- 18
- 18
2t
2t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 2
0
0
- 5 +
- 5 +
1.5t
2t
2.5t
3t
3t
t
CLCL
CLCL
CLCL
t
t
CLCL
CLCL
CLCL
+ t
MAX
CLCL
t
CLCL
t
STC1
STC1
0
STC1
- 15 +
- 20 +
- 18
- 5
- 20
- 5
- 20
- 20
2t
2t
CLCL
CLCL
NON-PAGE MODE
MIN
t
t
STC1
STC1
0
0
- 5 +
- 5 +
3.5t
2t
2.5t
3t
2t
3t
CLCL
CLCL
t
t
CLCL
CLCL
CLCL
CLCL
+ t
MAX
CLCL
t
CLCL
t
STC1
STC1
0
STC1
- 15 +
- 20 +
- 18
- 5
- 20
- 5
- 20
- 20
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS89C420
NOTES
2
2
2
2
2