AM186ED Datasheet, PDF (63/88 Pages) Advanced Micro Devices – High Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
Numerical Key to Switching Parameter Symbols (continued)
No.
Parameter Symbol
Description
94^(a)
95^(a)
96^(a)
97^(a)
t_RHDZ
t_ARYHDSH
t_ARYLDSH
t_DVDSL
RD High to Data Bus Turn-off Time
ARDY High to DS High
ARDY Low to DS High
Data Valid to DS Low
98
t_DSHDIW
DS High to Data Invalid—Write
99
t_PLAL
PCS Active to ALE Inactive
101
t_CHCAV
CLKOUTA Low to Column Address Valid
102
t_CLRA
CLKOUTA Low to RAS Active
103
t_CHRX
CLKOUTA High to RAS Inactive
104
t_CHCA
CLKOUTA High to CAS Active
105
t_CLCX
CLKOUTA Low to CAS Inactive
106
t_CHRA
CLKOUTA High to RAS Active
107
t_CLRX
CLKOUTA Low to RAS Inactive
108
t_RP0W
RAS Inactive Pulse Width (0 Wait States)
109
t_RP1W
RAS Inactive Pulse Width (1 Wait State)
110
t_RD0W
RAS To Column Address Delay Time with 0 Wait States
111
t_RD1W
RAS to Column Address Delay Time with 1 or More Wait States
T _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
D ^{R A F thistime:56, 60, and 71–78.}
Am186ED/EDLV Microcontrollers
63