DS89C420-ENL MAXIM [Maxim Integrated Products], DS89C420-ENL Datasheet - Page 51
![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: 51 of 58
- Download datasheet (670Kb)
Figure 12. PAGE-MODE 1 TIMING
Figure 13. PAGE-MODE 2 TIMING
XTAL1
PSEN
Port 0
Port 2
XTAL1
ALE
RD
WR
PSEN
Port 0
Port 2
ALE
RD
WR
LSB
OPCODE
t
MSB
AVIV2
t
t
t
AVLL
AVLL2
LLIV
LSB
t
CLCL
t
LSB
CLCL
t
t
PXIX
LLAX
MOVX
O P C O D E
t
LLPL
t
PLIV
t
AVLL2
LSB
MOVX
t
AVIV0
LSB
MOVX
t
PXIZ
MSB
t
PLPH
LSB
t
MOVX
LHLL
t
t
t
t
LLAX3
RHDX
LSB
LLWL
RLRH
51 of 58
t
t
DATA
RLDV
AVDV2
t
t
AVDV0
AVDV2
MSB
t
LLDV
t
t
LHLL
MSB
LSB
AVLL3
t
t
RLRH
AVWL2
t
DATA
LLAX3
t
RLDV
t
t
t
LSB
P L P H
LLAX
PXIX
OPCODE
t
t
t
RHDX
PLAZ
RHDZ
t
MSB
PLIV
t
AVIV2
MSB
LSB
t
AVWL0
OPCODE
LSB
t
t
t
LLAX2
QVWX
AVWL2
DATA
t
WLWH
MSB
MSB
t
t
t
WHLH
t
WLWH
LSB
WHQX
WHLH
t
LLWL
t
t
WHQX
LLAX2
t
QVWX
DATA
DS89C420
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