UPD98402A Datasheet, PDF (21/26 Pages) NEC – LOCAL ATM SONET FRAMER

µPD98402A
(6) PMD Parallel Interface
Parameters
RPC cycle time
RPC high level width
RPC low level width
TFC cycle time
TFC high level width
TFC low level width
RPD0-RPD7 setup time (to RPC↑)
RPD0-RPD7 hold time (to RPC↑)
TFC↑→TPC↑ delay time
TFC↓→TPC↓ delay time
TPC↑→TPD0-TPD7 delay time
Symbol
Conditions
tCYPPR
tPPRH
tPPRL
tCYPPT
tPPTH
tPPTL
tSPDC
tHPCD
tDFPCP load capacitor = 15 pF
tDFPCN load capacitor = 15 pF
tDPCD load capacitor = 15 pF
PMD Parallel Interface
Receive Side
RPC
tPPRH
tCYPPR
tPPRL
RPD0-RPD7
Transmit Side
tSPDC
tHPCD
MIN. TYP. MAX. Unit
50
—
ns
20
—
ns
20
—
ns
50
—
ns
20
—
ns
20
—
ns
5
—
ns
3
—
ns
3
25
ns
3
25
ns
–3.0
+1.0
ns
TFC
TPC
TPD0-TPD7
tDFPCP tDFPCN
tPPTH
tCYPPT
tPPTL
tDPCD
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