GMS84512 Datasheet, PDF (120/123 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTER

SWITCHING WAVEFORMS
WAVEFORM
GMS84512T/GMS84524T EPROM PROGRAMMING
INPUTS
Must be steady
May change
from H to L
May change
from L to H
Do not care any
change permitted
Does not apply
OUTPUTS
Will be steady
Will be changing
from H to L
Will be changing
from L to H
Changing state
unknown
Center line is
high impedance
"Off" state
READING WAVEFORMS
VIH
Addresses
VIL
Address Valid
VIH
OE
VIL
(2)
tAS
tO E
VIH
Output
VIL
High-Z
tDH
Valid Output
NOTES:
1. The input timing reference level is 1.0 V for a VIL and 4.0V for a VIH at VDD=5.0V
2. To read the output data, transition requires on the OE from the high to the low after address setup time tAS.
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