EVAL-ADUC842QS Analog Devices Inc, EVAL-ADUC842QS Datasheet - Page 79

• Manufacturer Part Number: EVAL-ADUC842QS
• Description: KIT DEV FOR ADUC842 QUICK START
• Manufacturer: Analog Devices Inc
• Series: QuickStart™ Kitr
• Type: MCUr

Specifications of EVAL-ADUC842QS

• Contents: Evaluation Board, Power Supply, Cable, Software and Documentation
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: ADuC842
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant

Parameter
EXTERNAL DATA MEMORY READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
RLRH
AVLL
LLAX
RLDV
RHDX
RHDZ
LLDV
AVDV
LLWL
AVWL
RLAZ
WHLH
RD Pulse Width
Address Valid after ALE Low
Address Hold after ALE Low
RD Low to Valid Data In
Data and Address Hold after RD
Data Float after RD
ALE Low to Valid Data In
Address to Valid Data In
ALE Low to RD or WR Low
Address Valid to RD or WR Low
RD Low to Address Float
RD or WR High to ALE High
PORT 0 (I/O)
PORT 2 (O)
PSEN (O)
ALE (O)
RD (O)
t
AVLL
A0 A7 (OUT)
A16 A23
t
AVDV
t
Figure 88. External Data Memory Read Cycle
LLAX
t
AVWL
t
LLWL
t
LLDV
Min
60
60
145
0
130
190
60
Rev. 0 | Page 79 of 88
t
RLAZ
t
16 MHz Core Clk
RLDV
A8 A15
Max
48
150
170
230
15
t
DATA (IN)
RLRH
t
RHDX
ADuC841/ADuC842/ADuC843
t
Min
125
120
290
0
255
375
120
WHLH
t
RHDZ
8 MHz Core Clock
Max
100
625
350
470
35
Unit
ns
ns
ns
Ns
ns
ns
ns
ns
ns
ns
ns
ns