Intel UPI-C42, UPI-L42 specifications WAVEFORMS

UPI-C42/UPI-L42
WAVEFORMS(Continued)
COMBINATION PROGRAM/VERIFY MODE
290414–25
NOTES:
1. A0must be held low (0V) during program/verify modes.
2. For VIH,V
IH1,V IL,V IL1,V DDH, and VDDL, please consult the D.C. Characteristics Table.
3. When programming the 87C42, a 0.1 mF capacitor is required across VDD and ground to suppress spurious voltage
transients which can damage the device.
VERIFY MODE
290414–26
NOTES:
1. PROG must float if EA is low.
2. PROG must float or e5V when EA is high.
3. P10–P17 e5V or must float.
4. P24–P27 e5V or must float.
5. A0must be held low during programming/verify modes.
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