AM188ES-40KCW Datasheet, PDF (92/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Ready and Peripheral (20 MHz and 25 MHz)
Parameter
No. Symbol
Description
Ready and Peripheral Timing Requirements
47 t_SRYCL SRDY Transition Setup Time^(a)
48 t_CLSRY SRDY Transition Hold Time^(a)
49 t_ARYCH ARDY Resolution Transition
Setup Time^(b)
50 t_CLARX ARDY Active Hold Time^(a)
51 t_ARYCHL ARDY Inactive Holding Time
52 t_ARYLCL ARDY Setup Time^(a)
53 t_INVCH Peripheral Setup Time^(b)
54
t_INVCL DRQ Setup Time^(b)
Peripheral Timing Responses
55 t_CLTMV Timer Output Delay
Preliminary
20 MHz
Min Max
Preliminary
25 MHz
Min Max Unit
10
10
ns
3
3
ns
10
10
ns
4
4
ns
6
6
ns
15
15
ns
10
10
ns
10
10
ns
25
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 This timing must be met to guarantee proper operation.
b This timing must be met to guarantee recognition at the clock edge.
92
Am186/188ES and Am186/188ESLV Microcontrollers