80C186EC/188EC, 80L186EC/188EC
AC SPECIFICATIONS
AC CharacteristicsÐ80C186EC-20/80C186EC-13
Symbol
Parameter
Min
Max
Min
Max
Unit Notes
INPUT CLOCK
20 MHz
13 MHz
TF
TC
TCH
TCL
TCR
TCF
CLKIN Frequency
CLKIN Period
CLKIN High Time
CLKIN Low Time
CLKIN Rise Time
CLKIN Fall Time
0
25
10
10
1
40
%
%
%
10
10
0
38.5
12
12
1
26
%
%
%
10
10
MHz
ns
ns
ns
ns
1
1
1, 2
1, 2
1, 3
1, 3
1
1
ns
OUTPUT CLOCK
T
T
T
T
T
T
CLKIN to CLKOUT Delay
CLKOUT Period
CLKOUT High Time
CLKOUT Low Time
CLKOUT Rise Time
CLKOUT Fall Time
0
17
0
23
ns
ns
ns
ns
ns
ns
1, 4
1
1
1
1, 5
1, 5
CD
2 * TC
2 * TC
b
a
a
b
a
a
(T/2) 5 (T/2)
b
(T/2) 5 (T/2)
5 (T/2) 5 (T/2)
b
5 (T/2) 5 (T/2)
5
5
PH
PL
PR
PF
1
1
6
6
1
1
6
6
OUTPUT DELAYS
T
T
T
T
T
T
ALE, S2:0, DEN, DT/R,
BHE (RFSH), LOCK, A19:16
3
3
3
3
0
0
20
23
20
23
25
25
3
3
3
3
0
0
25
30
25
30
30
30
ns 1, 4, 6, 7
ns 1, 4, 6, 8
ns 1, 4, 6
ns 1, 4, 6
CHOV1
CHOV2
CLOV1
CLOV2
CHOF
GCS7:0, LCS, UCS,
RD, WR, NCS, WDTOUT
BHE (RFSH), DEN, LOCK, RESOUT,
HLDA, T0OUT, T1OUT
RD, WR, GSC7:0, LCS, UCS, AD15:0
(AD7:0, A15:8), NCS, INTA, S2:0, A19:16
RD, WR, BHE (RFSH), DT/R, LOCK,
S2:0, A19:16
ns
ns
1
1
DEN, AD15:0 (AD7:0, A15:8)
CLOF
INPUT REQUIREMENTS
T
TEST, NMI, T1IN, T0IN, READY,
CTS1:0, BCLK1:0, P3.4, P3.5
10
3
10
3
ns
ns
1, 9
1, 9
CHIS
T
TEST, NMI, T1IN, T0IN, READY,
CTS1:0, BCLK1:0, P3.4, P3.5
CHIH
T
T
T
T
AD15:0 (AD7:0), READY
10
3
10
3
ns
ns
ns
ns
1, 10
1, 10
1, 9
CLIS
CLIH
CLIS
CLIH
AD15:0 (AD7:0), READY
HOLD, RESIN, PEREQ, ERROR, DRQ3:0
HOLD, RESIN, REREQ, ERROR, DRQ3:0
10
3
10
3
1, 9
NOTES:
1. See AC Timing Waveforms, for waveforms and definition.
2. Measure at V for high time, V for low time.
IH IL
3. Only required to guarantee I . Maximum limits are bounded by T , T
C
and T
.
CL
CC
CH
4. Specified for a 50 pF load, see Figure 14 for capacitive derating information.
5. Specified for a 50 pF load, see Figure 15 for rise and fall times outside 50 pF.
6. See Figure 15 for rise and fall times.
7. T
8. T
applies to BHE (RFSH), LOCK and A19:16 only after a HOLD release.
applies to RD and WR only after a HOLD release.
CHOV1
CHOV2
9. Setup and Hold are required to guarantee recognition.
10. Setup and Hold are required for proper operation.
32
INTEL [ INTEL ]
