AM186ER-25KCW AMD [Advanced Micro Devices], AM186ER-25KCW Datasheet - Page 74

• Manufacturer Part Number: AM186ER-25KCW
• Description: High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM
• Manufacturer: AMD [Advanced Micro Devices]

Switching Characteristics over Commercial and Industrial Operating Ranges
Write Cycle (40 MHz and 50 MHz)
Notes:
All timing parameters are measured at V
output test conditions are with C
a Testing is performed with equal loading on referenced pins.
b This parameter applies to the DEN, INTA1–INTA0, WR, WHB, and WLB signals.
74
General Timing Responses
Write Cycle Timing Responses
No.
10
11
12
13
14
16
17
18
19
20
23
30
31
32
33
34
35
65
67
68
87
3
4
5
7
8
9
Symbol
t
t
t
t
t
t
t
t
t
t
WHDEX
t
t
t
t
t
CXCSX
CHCSX
CVCTV
CLDOX
CVCTX
t
CHCSV
t
t
t
t
t
CLCSV
t
t
t
t
t
WLWH
WHDX
t
WHLH
CHSV
CHDX
CHLH
AVCH
AVWL
CHAV
CLSH
CLAV
CLDV
CHLL
DXDL
LHAV
LHLL
AVLL
LLAX
AVBL
Description
Status Active Delay
Status Inactive Delay
AD Address Valid Delay
Data Valid Delay
Status Hold Time
ALE Active Delay
ALE Width
ALE Inactive Delay
AD Address Valid to ALE Low
AD Address Hold from ALE Inactive
AD Address Valid to Clock High
MCS/PCS Active Delay
MCS/PCS Hold from Command
Inactive
MCS/PCS Inactive Delay
DEN Inactive to DT/R Low
Control Active Delay 1
ALE High to Address Valid
Data Hold Time
Control Inactive Delay
WR Pulse Width
WR Inactive to ALE High
Data Hold after WR
WR Inactive to DEN Inactive
A Address Valid to WR Low
CLKOUTA High to LCS/UCS Valid
CLKOUTA High to A Address Valid
A Address Valid to WHB, WLB Low
Parameter
(a)
Am186
L
=50 pF. For switching tests, V
TM
ER and Am188
CC
(a)
(b)
/2 with 50 pF loading on CLKOUTA, unless otherwise noted. All
(b)
(a)
(a)
(a)
(a)
(a)
TM
ER Microcontrollers Data Sheet
t
IL
CLCL
2t
t
=0.3 V and V
t
CLCL
t
CLCL
CLCL
CHCL
t
CLCH
+t
t
t
t
t
CLCH
CHCL
CLCH
CLCH
Min
7.5
CHCL
–10=15
40 MHz
–5=20
–10=40
0
0
0
0
0
0
0
0
0
0
0
0
0
0
–1.25
–2
–1.25
IH
Preliminary
=V
Max
12
12
12
12
12
12
12
12
12
12
12
10
12
CC
–0.3 V.
t
CLCL
t
CHCL
t
CLCH
+t
t
t
t
t
CLCH
CHCL
CLCH
CLCH
Min
CHCL
15
35
12
50 MHz
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
–1.25
–2
–1.25
Max
10
10
10
10
10
10
10
10
10
10
10
10
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns