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M28W640HCT Datasheet(PDF) 41 Page - Numonyx B.V

Part # M28W640HCT
Description  64 Mbit (4 Mb x 16, boot block) 3 V supply Flash memory
PDF  72 Pages
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Manufacturer  NUMONYX [Numonyx B.V]
Direct Link  http://www.numonyx.com
Logo NUMONYX - Numonyx B.V

M28W640HCT Datasheet(HTML) 41 Page - Numonyx B.V

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M28W640HCT, M28W640HCB
DC and AC parameters
41/72
Figure 12.
Power-up and Reset AC waveforms
Table 19.
Power-up and Reset AC characteristics
Symbol
Parameter
Test condition
M28W640HCT,
M28W640HCB
70 ns
Unit
tPHWL
tPHEL
tPHGL
Reset High to Write Enable Low,
Chip Enable Low, Output Enable Low
During program and
erase
Min
50
µs
others
Min
30
ns
tPLPH
(1)(2)
1.
The device reset is possible but not guaranteed if tPLPH < 100 ns.
2.
Sampled only, not 100% tested.
Reset Low to Reset High
Min
100
ns
tVDHPH
(3)
3.
It is important to assert RP in order to allow proper CPU initialization during power-up or reset.
Supply voltages High to Reset High
Min
300
µs
AI03537c
tPHWL
tPHEL
tPHGL
RP
W, E, G
VDD
tVDHPH
tPHWL
tPHEL
tPHGL
tPLPH
Power-up
Reset



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