ACS8514 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
ACS8514
Synchronous Equipment Timing Source Partner IC for 2nd T4 DPLL, Accurate Monitoring & Input Extender
Semtech Corporation
'ACS8514' PDF : 86 Pages View PDF
ACS8514 SETS Buddy
ADVANCED COMMS & SENSING FINAL
DATASHEET
Intel Mode
In Intel mode, the device is configured to interface with a microprocessor using a 80x86 type bus as parallel data +
address. Figure 7 and Figure 8 show the timing diagrams of read and write accesses for this mode.
Figure 7 Read Access Timing in INTEL Mode
Table 12 Read Access Timing in INTEL Mode (for use with Figure 7 )
Symbol
tsu1
tsu2
td1
td2
td3
td4
td5
tpw1
tpw2
th1
th2
th3
tp
tp
Parameter
Setup A valid to CSBfalling edge
Setup CSBfalling edge to RDBfalling edge
Delay RDBfalling edge to AD valid (consecutive Read - Read)
Delay RDBfalling edge to AD valid (consecutive Write - Read)
Delay CSBfalling edge to RDY active
Delay RDBfalling edge to RDYfalling edge
Delay RDBrising edge to AD high-Z
Delay CSBrising edge to RDY high-Z
RDB Low time (consecutive Read - Read)
RDB Low time (consecutive Write - Read)
RDY Low time (consecutive Read - Read)
RDY Low time (consecutive Write - Read)
Hold A valid after RDBrising edge
Hold CSB Low after RDBrising edge
Hold RDB Low after RDYrising edge
Time between (consecutive Read - Read) accesses (RDBrising edge
to RDBfalling edge, or RDBrising edge to WRBfalling edge)
Time between (consecutive Write - Read) accesses (RDBrising
edge to RDBfalling edge, or RDBrising edge to WRBfalling edge)
MIN
4 ns
0 ns
12 ns
12 ns
-
-
-
-
35 ns
35 ns
20 ns
20 ns
0 ns
0 ns
0 ns
15 ns
160 ns
TYP
-
-
-
-
-
-
-
-
60 ns
195 ns
-
-
-
-
-
-
-
MAX
-
-
40 ns
193 ns
13 ns
14 ns
10 ns
11 ns
-
-
45 ns
182 ns
-
-
-
-
-
Revision 3.00 April 2007 © Semtech Corp.
Page 22
www.semtech.com
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