DS89C420-ENL MAXIM [Maxim Integrated Products], DS89C420-ENL Datasheet - Page 47
![no-image](/images/no-image-200.jpg)
DS89C420-ENL
Manufacturer Part Number
DS89C420-ENL
Description
Ultra-High-Speed Microcontroller
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.DS89C420-ENL.pdf
(58 pages)
- Current page: 47 of 58
- Download datasheet (670Kb)
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
Port 2 Address to Valid
Data In
PSEN Low to Port 0
RD
WR Pulse Width (P3.6)
RD
(P3.7) Low to Valid
Pulse Width (P3.7)
PARAMETER
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
WLWH
AVDV0
AVDV2
AVIV0
AVIV2
RLRH
RLDV
RHDX
RHDZ
LLDV
PLAZ
PXIX
PXIZ
t
t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 1
0
0
- 5 +
- 5 +
1 CYCLE
t
t
CLCL
CLCL
t
CLCL
MAX
t
t
STC1
STC1
- 15 +
- 16 +
- 18
t
t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 1
0
0
- 5 +
- 5 +
2 CYCLE
1.5t
1.5t
t
CLCL
+ t
MAX
t
CLCL
CLCL
STC1
STC1
- 15 +
- 18
- 16
47 of 58
2t
2t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 1
0
0
- 5 +
- 5 +
4 CYCLE
2.5t
2t
3.5t
CLCL
+ t
MAX
t
CLCL
CLCL
STC1
STC1
- 15 +
- 18
- 16
2t
2t
CLCL
CLCL
MIN
t
t
STC1
STC1
PAGE MODE 2
0
0
- 5 +
- 5 +
1.5t
2t
2.5t
3t
3.0t
3t
t
CLCL
t
CLCL
CLCL
CLCL
CLCL
+ t
+ t
MAX
t
t
CLCL
CLCL
CLCL
STC1
STC1
0
STC1
STC1
- 15 +
- 20 +
- 5
- 20
- 5
- 20
- 20
- 16
2t
2t
CLCL
CLCL
NON-PAGE MODE
MIN
t
t
STC1
STC1
0
0
- 5 +
- 5 +
3.5t
2t
2.5t
3t
3.5t
3t
t
CLCL
t
CLCL
CLCL
CLCL
CLCL
+ t
+ t
MAX
t
t
CLCL
CLCL
CLCL
STC1
STC1
0
STC1
STC1
- 15 +
- 20 +
- 5
- 20
- 5
- 20
- 20
- 20
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS89C420
NOTES
2
2
2
2
2
2
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