AM188ES-40KCW Datasheet, PDF (83/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Interrupt Acknowledge Cycle (20 MHz and 25 MHz)
Parameter
No. Symbol
Description
General Timing Requirements
1
t_DVCL Data in Setup
2
t_CLDX Data in Hold
General Timing Responses
3
t_CHSV Status Active Delay
4
t_CLSH Status Inactive Delay
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 Invalid to ALE
Low^(a)
15 t_CLAZ AD Address Float Delay
19
t_DXDL DEN Inactive to DT/R Low^(a)
20 t_CVCTV Control Active Delay 1^(b)
21 t_CVDEX DEN Inactive Delay
22 t_CHCTV Control Active Delay 2^(c)
23 t_LHAV ALE High to Address Valid
31 t_CVCTX Control Inactive Delay^(b)
68 t_CHAV CLKOUTA High to A
Address Valid
Preliminary
20 MHz
25 MHz
Min
Max
Min
Max Unit
10
10
ns
3
3
ns
0
25
0
20 ns
0
25
0
20 ns
0
25
0
20 ns
0
0
ns
25
20 ns
t_CLCL – 10 = 40
t_CLCL – 10 = 30
ns
25
20 ns
t_CLCH
t_CLCH
ns
t_CLAX = 0
25
t_CLAX = 0
20 ns
0
0
ns
0
25
0
20 ns
0
25
0
20 ns
0
25
0
20 ns
20
15
ns
0
25
0
20 ns
0
25
0
20 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 INTA1–INTA0 signals.
c This parameter applies to the DEN and DT/R signals.
Am186/188ES and Am186/188ESLV Microcontrollers
83