Intel 80L186EA User Manual
Page 27
80C186EA 80C188EA 80L186EA 80L188EA
AC SPECIFICATIONS
AC Characteristics
80L186EA13 80L186EA8
Symbol
Parameter
Min
Max
Min
Max
Units
Notes
INPUT CLOCK
13 MHz
8 MHz
T
F
CLKIN Frequency
0
26
0
16
MHz
1
T
C
CLKIN Period
38 5
%
62 5
%
ns
1
T
CH
CLKIN High Time
12
%
12
%
ns
1 2
T
CL
CLKIN Low Time
12
%
12
%
ns
1 2
T
CR
CLKIN Rise Time
1
8
1
8
ns
1 3
T
CF
CLKIN Fall Time
1
8
1
8
ns
1 3
OUTPUT CLOCK
T
CD
CLKIN to CLKOUT Delay
0
45
0
95
ns
1 4
T
CLKOUT Period
2 T
C
2 T
C
ns
1
T
PH
CLKOUT High Time
(T 2)
b
5
(T 2)
b
5
ns
1
T
PL
CLKOUT Low Time
(T 2)
b
5
(T 2)
b
5
ns
1
T
PR
CLKOUT Rise Time
1
12
1
12
ns
1 5
T
PF
CLKOUT Fall Time
1
12
1
12
ns
1 5
OUTPUT DELAYS
T
CHOV1
ALE LOCK
3
27
3
27
ns
1 4 6 7
T
CHOV2
MCS3 0 LCS UCS
3
32
3
32
ns
1 4
PCS6 0 RD WR
6 8
T
CHOV3
S2 0 (DEN) DT R
3
30
3
30
ns
1
BHE (RFSH) A19 16
T
CLOV1
LOCK RESOUT HLDA
3
27
3
27
ns
1 4 6
T0OUT T1OUT
T
CLOV2
RD WR MCS3 0 LCS
3
32
3
35
ns
1 4 6
UCS PCS6 0 INTA1 0
T
CLOV3
BHE (RFSH) DEN A19 16
3
30
3
30
ns
1 4 6
T
CLOV4
AD15 0 (A15 8 AD7 0)
3
34
3
35
ns
1 4 6
T
CLOV5
S2 0
3
38
3
40
ns
1 4 6
T
CHOF
RD WR BHE (RFSH)
0
27
0
27
ns
1
DT R LOCK
S2 0 A19 16
T
CLOF
DEN AD15 0
(A15 8 AD7 0)
0
27
0
27
ns
1
NOTES
1 See AC Timing Waveforms for waveforms and definition
2 Measured at V
IH
for high time V
IL
for low time
3 Only required to guarantee I
CC
Maximum limits are bounded by T
C
T
CH
and T
CL
4 Specified for a 50 pF load see Figure 13 for capacitive derating information
5 Specified for a 50 pF load see Figure 14 for rise and fall times outside 50 pF
6 See Figure 14 for rise and fall times
7 T
CHOV1
applies to BHE (RFSH) LOCK and A19 16 only after a HOLD release
8 T
CHOV2
applies to RD and WR only after a HOLD release
9 Setup and Hold are required to guarantee recognition
10 Setup and Hold are required for proper operation
11 T
CHOVS
applies to BHE (RFSH) and A19 16 only after a HOLD release
12 Pin names in parentheses apply to the 80C188EA 80L188EA
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