80C186EA/80C188EA, 80L186EA/80L188EA
AC SPECIFICATIONS (Continued)
AC CharacteristicsÐ80C186EA25/80C186EA20/80C186EA13Symbol Parameter Min Max Min Max Min Max Units Notes
SYNCHRONOUSINPUTS 25 MHz(12) 20 MHz 13 MHz
TCHIS TEST,NMI, INT3:0, 8 10 10 ns 1, 9
T1:0IN,ARDY
TCHIH TEST,NMI, INT3:0, 3 3 3 ns 1,9
T1:0IN,ARDY
TCLIS AD15:0(AD7:0), ARDY, 10 10 10 ns 1, 10
SRDY,DRQ1:0
TCLIH AD15:0(AD7:0), ARDY, 3 3 3 ns 1, 10
SRDY,DRQ1:0
TCLIS HOLD,PEREQ, ERROR 10 10 10 ns 1, 9
(80C186EAOnly)
TCLIH HOLD,PEREQ, ERROR 333ns1,9
(80C186EAOnly)
TCLIS RESIN(to CLKIN) 10 10 10 ns 1, 9
TCLIH RESIN(from CLKIN) 3 3 3 ns 1, 9
NOTES:
1. See AC Timing Waveforms, for waveforms and definition.
2. Measured at VIH for high time, VIL for low time.
3. Only required to guarantee ICC. Maximum limits are bounded by TC,T
CH and TCL.
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. TCHOV1 applies to BHE (RFSH), LOCK and A19:16 only after a HOLD release.
8. TCHOV2 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. TCHOVS applies to BHE (RFSH) and A19:16 only after a HOLD release.
12. Operating conditions for 25 MHz are 0§Ctoa
70§C, VCC e5.0V g10%.
Pin names in parentheses apply to the 80C188EA/80L188EA.
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