AM188ES-40KCW Datasheet, PDF (86/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Software Halt 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 Invalid Delay and BHE
9
t_CHLH ALE Active Delay
10
t_LHLL ALE Width
11 t_CHLL ALE Inactive Delay
19
t_DXDL DEN Inactive to DT/R Low^(a)
22 t_CHCTV Control Active Delay 2^(b)
68 t_CHAV CLKOUTA High to A Address
Invalid
20 MHz
Min
Preliminary
25 MHz
Max
Min
0
25
0
0
25
0
0
25
0
25
t_CLCL – 10 = 40
t_CLCL – 10 = 30
25
0
0
0
25
0
0
25
0
Max Unit
20 ns
20 ns
20 ns
20 ns
ns
20 ns
ns
20 ns
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 DEN signal.
86
Am186/188ES and Am186/188ESLV Microcontrollers