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AD822 数据表(PDF) 80 Page - Analog Devices

部件名 AD822
功能描述  MicroConverter짰 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
PDF  88 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD822 数据表(HTML) 80 Page - Analog Devices

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ADuC841/ADuC842/ADuC843
Rev. 0 | Page 80 of 88
Parameter
16 MHz Core Clk
8 MHz Core Clock
EXTERNAL DATA MEMORY WRITE CYCLE
Min
Max
Min
Max
Unit
tWLWH
WR Pulse Width
65
130
ns
tAVLL
Address Valid after ALE Low
60
120
ns
tLLAX
Address Hold after ALE Low
65
135
ns
tLLWL
ALE Low to RD or WR Low
130
260
ns
tAVWL
Address Valid to RD or WR Low
190
375
ns
tQVWX
Data Valid to WR Transition
60
120
ns
tQVWH
Data Setup before WR
120
250
ns
tWHQX
Data and Address Hold after WR
380
755
ns
tWHLH
RD or WR High to ALE High
60
125
ns
ALE (O)
PORT 2 (O)
tWHLH
tWLWH
tLLWL
tAVWL
tLLAX
tAVLL
tQVWX
tQVWH
tWHQX
A0 A7
DATA
A16 A23
V8 A15
PSEN (O)
WR (O)
Figure 89. External Data Memory Write Cycle



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