TS80C52X2
10.4.4 External Data Memory Characteristics
Table 27. Symbol Description
Symbol
Parameter
T
RD Pulse Width
RLRH
T
T
WR Pulse Width
WLWH
T
RD to Valid Data In
RLDV
Data Hold After RD
Data Float After RD
ALE to Valid Data In
Address to Valid Data In
ALE to WR or RD
RHDX
T
RHDZ
T
LLDV
T
AVDV
T
LLWL
T
Address to WR or RD
Data Valid to WR Transition
Data set-up to WR High
Data Hold After WR
RD Low to Address Float
RD or WR High to ALE high
AVWL
QVWX
QVWH
WHQX
T
T
T
T
RLAZ
T
WHLH
46
Rev. B - Jan. 25, 1999
Preliminary