M58LT256JST, M58LT256JSB
DC and AC parameters
Figure 17. Reset and power-up AC waveforms
tPHWL
tPLWL
tPLEL
tPLGL
tPLLL
W, E, G, L
tPHEL
tPHGL
tPHLL
RP
tVDHPH
tPLPH
VDD, VDDQ
Power-up
Reset
AI06976
Table 26. Reset and power-up AC characteristics
Symbol
Parameter
Test condition
During program
85
Unit
Reset Low to
Min
Min
Min
Min
25
25
µs
µs
ns
µs
tPLWL
tPLEL
tPLGL
tPLLL
Write Enable Low,
Chip Enable Low,
Output Enable Low,
Latch Enable Low
During erase
Read
80
Other conditions
200
Reset High to
tPHWL
tPHEL
tPHGL
tPHLL
Write Enable Low,
Chip Enable Low,
Output Enable Low,
Latch Enable Low
Min
30
ns
(1),(2)
tPLPH
RP Pulse Width
Min
Min
50
ns
µs
Supply voltages High to Reset
High
(3)
tVDHPH
150
1. The device Reset is possible but not guaranteed if tPLPH < 50 ns.
2. Sampled only, not 100% tested.
3. It is important to assert RPr to allow proper CPU initialization during power-up or reset.
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NUMONYX [ NUMONYX B.V ]
