AM186 Datasheet, PDF (90/112 Pages) Advanced Micro Devices – High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM

Switching Characteristics over Commercial and Industrial Operating Ranges
Software Halt Cycle (25 MHz and 33 MHz)
Parameter
No. Symbol Description
General Timing Responses
Preliminary
25 MHz
33 MHz
Min
Max
Min
Max Unit
3
t_CHSV Status Active Delay
0
20
0
15 ns
4
t_CLSH Status Inactive Delay
0
20
0
15 ns
5
t_CLAV AD Address Invalid Delay
0
20
0
15 ns
9
t_CHLH ALE Active Delay
20
15 ns
10
t_LHLL ALE Width
t_CLCL – 10 = 30
t_CLCL – 10 = 20
ns
11
t_CHLL ALE Inactive Delay
20
15 ns
19
t_DXDL DEN Inactive to DT/R Low^(a)
0
0
ns
22
t_CHCTV Control Active Delay 2^(b)
0
20
0
15 ns
68
t_CHAV CLKOUTA High to A Address Invalid
0
20
0
15 ns
Notes:
All timing parameters are measured at V_CC/2 with 50 pF loading on CLKOUTA, unless otherwise noted. All
output test conditions are with C_L=50 pF. For switching tests, V_IL=0.3 V and V_IH =V_CC–0.3 V.
a Testing is performed with equal loading on referenced pins.
T ^{b This parameter applies to the DEN signal.}
Switching Characteristics over Commercial and Industrial Operating Ranges
Software Halt Cycle (40 MHz and 50 MHz)
F _Parameter
No. Symbol Description
A ^{General Timing Responses}
3
t_CHSV Status Active Delay
4
t_CLSH Status Inactive Delay
5
t_CLAV AD Address Invalid Delay
R 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)
D²²
t_CHCTV Control Active Delay 2^(b)
Preliminary
40 MHz
50 MHz
Min
Max
Min
Max Unit
0
12
0
10
ns
0
12
0
10
ns
0
12
0
10
ns
12
10
ns
t_CLCL – 5 = 20
15
ns
12
10
ns
0
0
ns
0
12
0
10
ns
68
t_CHAV CLKOUTA High to A Address Invalid
0
10
0
10
ns
Notes:
All timing parameters are measured at V_CC/2 with 50 pF loading on CLKOUTA, unless otherwise noted. All
output test conditions are with C_L=50 pF. For switching tests, V_IL=0.3 V and V_IH =V_CC–0.3 V.
a Testing is performed with equal loading on referenced pins.
b This parameter applies to the DEN signal.
90
Am186^TMER and Am188^TMER Microcontrollers Data Sheet