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ADUC831BCP Datasheet(PDF) 69 Page - Analog Devices

Part # ADUC831BCP
Description  MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU
PDF  76 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADUC831BCP Datasheet(HTML) 69 Page - Analog Devices

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REV. 0
ADuC831
–69–
12 MHz
Variable Clock
Parameter
Min
Max
Min
Max
Unit
Figure
EXTERNAL DATA MEMORY WRITE CYCLE
tWLWH
WR Pulsewidth
400
6tCK – 100
ns
72
tAVLL
Address Valid after ALE Low
43
tCK –40
ns
72
tLLAX
Address Hold after ALE Low
48
tCK –35
ns
72
tLLWL
ALE Low to
RD or WR Low
200
300
3tCK –50
3tCK +50
ns
72
tAVWL
Address Valid to
RD or WR Low
203
4tCK – 130
ns
72
tQVWX
Data Valid to
WR Transition
33
tCK –50
ns
72
tQVWH
Data Setup before
WR
433
7tCK – 150
ns
72
tWHQX
Data and Address Hold after
WR
33
tCK –50
ns
72
tWHLH
RD or WR High to ALE High
43
123
tCK –40
6tCK – 100
ns
72
t
LLAX
DATA
MCLK
ALE (O)
PSEN (O)
PORT 2 (O)
t
LLWL
t
AVWL
t
AVLL
t
QVWX
t
WHQX
t
WHLH
A0–A7
A16–A23
A8–A15
t
WLWH
t
QVWH
WR (O)
Figure 72. External Data Memory Write Cycle



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