
Rev. A - Mar. 19, 1999
33
Preliminary
TS80C31X2
7.4.4 External Data Memory Characteristics
Table 19. Symbol Description
Symbol
Parameter
T
RLRH
RD Pulse Width
T
WLWH
WR Pulse Width
T
RLDV
RD to Valid Data In
T
RHDX
Data Hold After RD
T
RHDZ
Data Float After RD
T
LLDV
ALE to Valid Data In
T
AVDV
Address to Valid Data In
T
LLWL
ALE to WR or RD
T
AVWL
Address to WR or RD
T
QVWX
Data Valid to WR Transition
T
QVWH
Data set-up to WR High
T
WHQX
Data Hold After WR
T
RLAZ
RD Low to Address Float
T
WHLH
RD or WR High to ALE high