16-Bit High-Integration Embedded Processors Specification Sheet
80C186EA/80C188EA, 80L186EA/80L188EA
AC SPECIFICATIONS
AC CharacteristicsĂ80C186EA25/80C186EA20/80C186EA13
Symbol Parameter Min Max Min Max Min Max Units Notes
INPUT CLOCK 25 MHz
(12)
20 MHz 13 MHz
T
F
CLKIN Frequency 0 50 0 40 0 26 MHz 1
T
C
CLKIN Period 20
%
25
%
38.5
%
ns 1
T
CH
CLKIN High Time 10
%
10
%
12
%
ns 1, 2
T
CL
CLKIN Low Time 10
%
10
%
12
%
ns 1, 2
T
CR
CLKIN Rise Time 1 8 1 8 1 8 ns 1, 3
T
CF
CLKIN Fall Time 1 8 1 8 1 8 ns 1, 3
OUTPUT CLOCK
T
CD
CLKIN to CLKOUT Delay 0 15 0 17 0 23 ns 1, 4
T CLKOUT Period 2T
C
2*T
C
2*T
C
ns 1
T
PH
CLKOUT High Time (T/2)
b
5 (T/2)
b
5 (T/2)
b
5ns1
T
PL
CLKOUT Low Time (T/2)
b
5 (T/2)
b
5 (T/2)
b
5ns1
T
PR
CLKOUT Rise Time 1 6 1 6 1 6 ns 1, 5
T
PF
CLKOUT Fall Time 1 6 1 6 1 6 ns 1, 5
OUTPUT DELAYS
T
CHOV1
ALE, S2:0, DEN, DT/R, 3 20 3 22 3 25 ns 1, 4, 6, 7
BHE
, (RFSH), LOCK, A19:16
T
CHOV2
MCS3:0, LCS, UCS, PCS6:0, 3 25 3 27 3 30 ns 1, 4, 6, 8
NCS,RD,WR
T
CLOV1
BHE (RFSH), DEN, LOCK, 3 20 3 22 3 25 ns 1, 4, 6
RESOUT, HLDA,
T0OUT, T1OUT, A19:16
T
CLOV2
RD,WR, MCS3:0, LCS, 3 25 3 27 3 30 ns 1, 4, 6
UCS
, PCS6:0, AD15:0
(A15:8, AD7:0),
NCS, INTA1:0, S2:0
T
CHOF
RD,WR, BHE (RFSH), DT/R, 0 25 0 25 0 25 ns 1
LOCK
, S2:0
, A19:16
T
CLOF
DEN, AD15:0 (A15:8, AD7:0) 0 25 0 25 0 25 ns 1
25
25