AM186ED Datasheet, PDF (72/88 Pages) Advanced Micro Devices – High Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
DRAM Write Cycle Timing with No-Wait States
t₄
t₁
t₂
t₃
t₄
t₁
CLKOUTA
5
7
30
AD[15:0]
Addr.
68
101
Data
A[17:1]
RAS
CAS
Row
110
102
Column
103
108
104
105
WR^(a)
20
31
Note:
a Write operations use the WR output connected to the DRAM write enable (WE) pin.
F _{DRAM Write Cycle Timing With Wait State(s)}
t₄
t₁
t₂
t₃
t_w
t₄
A _CLKOUTA
R _AD[15:0]
D^A[17:1]
5
7
Addr.
68
101
Row
Data
Column
102
110
107
RAS
T
t₁
30
CAS
109
104
105
WR^(a)
20
31
Note:
a Write operations use the WR output connected to the DRAM write enable (WE) pin.
72
Am186ED/EDLV Microcontrollers