AM186ER-25KCW AMD [Advanced Micro Devices], AM186ER-25KCW Datasheet - Page 94

• Manufacturer Part Number: AM186ER-25KCW
• Description: High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM
• Manufacturer: AMD [Advanced Micro Devices]

Switching Characteristics over Commercial and Industrial Operating Ranges
Clock (40 MHz and 50 MHz)
Notes:
All timing parameters are measured at V
output test conditions are with C
a The Times One mode should be used for operations from 16 MHz to 20 MHz. The Times Four mode should
94
CLKIN Requirements for Times Four Mode
CLKIN Requirements for Times One Mode
CLKIN Requirements for Divide by Two Mode
CLKOUT Timing
No.
36
37
38
39
40
36
37
38
39
40
36
37
38
39
40
42
43
44
45
46
61
69
70
be used for operations above 20 MHz.
Symbol
t
t
CH1CH2
t
t
CL2CL1
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CICOA
CICOB
CHCK
CHCK
CHCK
CLCH
CHCL
LOCK
CLCK
CKHL
CKLH
CLCK
CKHL
CKLH
CLCK
CKHL
CKLH
CLCL
CKIN
CKIN
CKIN
Description
X1 Period
X1 Low Time (1.5 V)
X1 High Time (1.5 V)
X1 Fall Time (3.5 to 1.0 V)
X1 Rise Time (1.0 to 3.5 V)
X1 Period
X1 Low Time (1.5 V)
X1 High Time (1.5 V)
X1 Fall Time (3.5 to 1.0 V)
X1 Rise Time (1.0 to 3.5 V)
X1 Period
X1 Low Time (1.5 V)
X1 High Time (1.5 V)
X1 Fall Time (3.5 to 1.0 V)
X1 Rise Time (1.0 to 3.5 V)
CLKOUTA Period
CLKOUTA Low Time (C
CLKOUTA High Time (C
CLKOUTA Rise Time (1.0 to 3.5 V)
CLKOUTA Fall Time (3.5 to 1.0 V)
Maximum PLL Lock Time
X1 to CLKOUTA Skew
X1 to CLKOUTB Skew
Parameter
Am186
(a)
(a)
(a)
L
=50 pF. For switching tests, V
TM
ER and Am188
CC
(a)
(a)
(a)
(a)
(a)
(a)
/2 with 50 pF loading on CLKOUTA, unless otherwise noted. All
L
L
=50 pF)
=50 pF)
(a)
(a)
(a)
(a)
(a)
(a)
TM
0.5t
0.5t
ER Microcontrollers Data Sheet
CLCL
CLCL
IL
12.5
1.25
1.25
=0.3 V and V
Min
100
–1.25=11.25
–1.25=11.25
7.5
7.5
45
45
25
25
40 MHz
IH
Max
125
=V
60
33
20
24
Preliminary
5
5
5
5
5
5
3
3
1
CC
–0.3 V.
0.5t
0.5t
CLCL
CLCL
Not Supported
Not Supported
Min
80
35
35
20
50 MHz
–1=9
–1=9
Max
125
15
21
5
5
3
3
1
Unit
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns