80C186EC/188EC, 80L186EC/188EC
AC SPECIFICATIONS
AC CharacteristicsÐ80C186EC25
25 MHz
Symbol
Parameter
Units
Notes
Min
Max
INPUT CLOCK
T
T
T
T
T
T
CLKIN Frequency
CLKIN Period
0
20
8
50
%
%
%
10
10
MHz
ns
1
F
1
C
CLKIN High Time
CLKIN Low Time
CLKIN Rise Time
CLKIN Fall Time
ns
ns
1, 2
1, 2
1, 3
1, 3
CH
CL
CR
CF
8
1
ns
ns
1
OUTPUT CLOCK
T
T
T
T
T
T
CLKIN to CLKOUT Delay
CLKOUT Period
0
17
ns
ns
ns
ns
ns
ns
1, 4
1
CD
2*T
C
b
b
a
a
CLKOUT High Time
CLKOUT Low Time
CLKOUT Rise Time
CLKOUT Fall Time
(T/2)
(T/2)
5
5
(T/2)
(T/2)
5
5
1
PH
PL
PR
PF
1
1
6
1, 5
1, 5
1
6
OUTPUT DELAYS
T
ALE, S2:0, DEN, DT/R,
BHE (RFSH), LOCK, A19:16
3
17
ns
1, 4, 6, 7
CHOV1
T
T
GCS0:7, LCS, UCS, NCS, RD, WR
3
3
20
17
ns
ns
1, 4, 6, 8
1, 4, 6
CHOV2
BHE (RFSH), DEN, LOCK, RESOUT,
HLDA, T0OUT, T1OUT, A19:16
CLOV1
T
T
T
RD, WR, GCS7:0, LCS, UCS, AD15:0
(AD7:0, A15:8), NCS, INTA1:0, S2:0
3
0
0
20
20
20
ns
ns
ns
1, 4, 6
CLOV2
CHOF
CLOF
RD, WR, BHE (RFSH), DT/R,
LOCK, S2:0, A19:16
1
1
DEN, AD15:0 (AD7:0, A15:8)
30
INTEL [ INTEL ]
