P R E L I M I N A R Y
Numerical Key to Switching Parameter Symbols (continued)
No.
94(a)
95(a)
96(a)
97(a)
98
Parameter Symbol
tRHDZ
Description
RD High to Data Bus Turn-off Time
tARYHDSH
tARYLDSH
tDVDSL
tDSHDIW
tPLAL
ARDY High to DS High
ARDY Low to DS High
Data Valid to DS Low
DS High to Data Invalid—Write
99
PCS Active to ALE Inactive
101
102
103
104
105
106
107
108
109
110
111
tCHCAV
tCLRA
CLKOUTA Low to Column Address Valid
CLKOUTA Low to RAS Active
tCHRX
CLKOUTA High to RAS Inactive
CLKOUTA High to CAS Active
tCHCA
tCLCX
CLKOUTA Low to CAS Inactive
CLKOUTA High to RAS Active
tCHRA
tCLRX
CLKOUTA Low to RAS Inactive
RAS Inactive Pulse Width (0 Wait States)
RAS Inactive Pulse Width (1 Wait State)
RAS To Column Address Delay Time with 0 Wait States
RAS to Column Address Delay Time with 1 or More Wait States
tRP0W
tRP1W
tRD0W
tRD1W
Note:
a
Specs 83 and 88–97 are defined but not used at this time. Additionally, the following parameters are not defined nor used at
this time: 56, 60, and 71–78.
Am186ED/EDLV Microcontrollers
63
AMD [ AMD ]
