376 datasheet(65/95 Pages) INTEL

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376 EMBEDDED PROCESSOR

Table 65 80376 AC Characteristics at 20 MHz

(Continued)

Functional Operating Range VCC e 5V g10% TCASE e 0 C to 115 C for 88-pin PGA or 100-pin PQFP

Symbol

Parameter

Min

Max

Unit

Figure

Notes

t14

HLDA Valid Delay

CL e 75 pF(4)

t15

NA Setup Time

t16

NA Hold Time

t19

READY Setup Time

t20

READY Hold Time

t21

D15–D0 Read Data Setup Time

t22

D15–D0 Read Data Hold Time

t23

HOLD Setup Time

t24

HOLD Hold Time

t25

RESET Setup Time

t26

RESET Hold Time

t27

NMI INTR Setup Time

(2)

t28

NMI INTR Hold Time

(2)

t29

PEREQ ERROR BUSY FLT

(2)

Setup Time

t30

PEREQ ERROR BUSY FLT

(2)

Hold Time

NOTES

1 Float condition occurs when maximum output current becomes less than ILO in magnitude Float delay is not 100%

tested

2 These inputs are allowed to be asynchronous to CLK2 The setup and hold specifications are given for testing purposes

to assure recognition within a specific CLK2 period

3 These are not tested They are guaranteed by design characterization

4 Tested with CL set to 50 pF and derated to support the indicated distributed capacitive load See Figures 68 through 610

for capacitive derating curves

5 The 80376 does not have t17 or t18 timing specifications

AC TEST LOADS

240182 – 36

Figure 62 AC Test Loads

AC TIMING WAVEFORMS

240182 – 37

Figure 63 CLK2 Waveform

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