AM188ES-40KCW Datasheet, PDF (71/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Write Cycle (20 MHz and 25 MHz)
Parameter
No. Symbol
Description
General Timing Responses
3
t_CHSV Status Active Delay
4
t_CLSH Status Inactive Delay
5
t_CLAV AD Address Valid Delay and BHE
6
t_CLAX Address Hold
7
t_CLDV Data Valid Delay
8
t_CHDX Status Hold Time
9
t_CHLH ALE Active Delay
10
t_LHLL ALE Width
11 t_CHLL ALE Inactive Delay
12
t_AVLL AD Address Valid to ALE Low^(a)
13 t_LLAX AD Address Hold from ALE
Inactive^(a)
14 t_AVCH AD Address Valid to Clock High
16 t_CLCSV MCS/PCS Active Delay
17 t_CXCSX MCS/PCS Hold from Command
Inactive^(a)
18 t_CHCSX MCS/PCS Inactive Delay
19
t_DXDL DEN Inactive to DT/R Low^(a)
20 t_CVCTV Control Active Delay 1^(b)
21 t_CVDEX DS Inactive Delay
22 t_CHCTV Control Active Delay 2
23 t_LHAV ALE High to Address Valid
Write Cycle Timing Responses
30 t_CLDOX Data Hold Time
31 t_CVCTX Control Inactive Delay^(b)
32 t_WLWH WR Pulse Width
33 t_WHLH WR Inactive to ALE High^(a)
34 t_WHDX Data Hold after WR^(a)
35 t_WHDEX WR Inactive to DEN Inactive^(a)
41 t_DSHLH DS Inactive to ALE High
65 t_AVWL A Address Valid to WR Low
67 t_CHCSV CLKOUTA High to LCS/UCS Valid
68 t_CHAV CLKOUTA High to A Address
Valid
87 t_AVBL A Address Valid to WHB, WLB
Low
98 t_DSHDIW DS High to Data Invalid—Write
20 MHz
Min
0
0
0
0
0
0
t_CLCL – 10 =40
t_CLCH –2
t_CHCL– 2
0
0
t_CLCH – 2
0
0
0
0
0
20
0
0
2t_CLCL – 10 = 90
t_CLCH – 2
t_CLCL – 10 = 40
t_CLCH – 3
t_CLCH – 2=
21
t_CLCL+ t_CHCL – 3
0
0
t_CHCL – 3
35
Preliminary
25 MHz
Max
Min
25
0
25
0
25
0
25
0
15
0
0
25
t_CLCL – 10 =30
25
t_CLCH – 2
t_CHCL– 2
0
25
0
t_CLCH – 2
25
0
0
15
0
25
0
25
0
15
0
25
0
2t_CLCL – 10 = 70
t_CLCH – 2
t_CLCL – 10 =30
t_CLCH – 3
t_CLCH – 2=
16
t_CLCL +t_CHCL–3
25
0
25
0
25
t_CHCL – 3
0
Max
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
30
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
ns
ns
ns
ns
Notes:
All timing parameters are measured at 1.5 V with 50 pF loading on CLKOUTA, unless otherwise noted. All output test conditions
are with C_L =50 pF. For switching tests, V_IL=0.45 V and V_{IH =}2.4 V, except at X1 where V_IH =V_CC – 0.5 V.
a Testing is performed with equal loading on referenced pins.
b This parameter applies to the DEN, DS, INTA1–INTA0, WR, WHB, and WLB signals.
Am186/188ES and Am186/188ESLV Microcontrollers
71