EVAL-ADUC831QSZ Datasheet, PDF (67/76 Pages) Analog Devices – MicroConverter®, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU

Parameter
EXTERNAL PROGRAM MEMORY READ CYCLE
t_LHLL
t_AVLL
t_LLAX
t_LLIV
t_LLPL
t_PLPH
t_PLIV
t_PXIX
t_PXIZ
t_AVIV
t_PLAZ
t_PHAX
ALE Pulsewidth
Address Valid to ALE Low
Address Hold after ALE Low
ALE Low to Valid Instruction In
ALE Low to PSEN Low
PSEN Pulsewidth
PSEN Low to Valid Instruction In
Input Instruction Hold after PSEN
Input Instruction Float after PSEN
Address to Valid Instruction In
PSEN Low to Address Float
Address Hold after PSEN High
12 MHz
Min
Max
127
43
53
234
53
205
145
0
59
312
25
0
Variable Clock
Min
Max
ADuC831
Unit Figure
2t_CK – 40
t_CK – 40
ns
70
ns
70
t_CK – 30
ns
70
4t_CK – 100 ns
70
t_CK – 30
ns
70
3t_CK – 45
ns
70
3t_CK – 105 ns
70
0
ns
70
t_CK – 25
ns
70
5t_CK – 105 ns
70
25
ns
70
0
ns
70
M_CLK
ALE (O)
PSEN (O)
PORT 0 (I/O)
PORT 2 (O)
t_LHLL
t_AVLL t_LLPL
t_LLAX
PCL
(OUT)
t_PLPH
t_LLIV
t_PLIV
t_PLAZ
t_PXIX
t_PXIZ
INSTRUCTION
(IN)
t_AVIV
PCH
t_PHAX
Figure 70. External Program Memory Read Cycle
REV. 0
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