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M28W640HCT Datasheet(PDF) 40 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) 40 Page - Numonyx B.V

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DC and AC parameters
M28W640HCT, M28W640HCB
40/72
Table 18.
Write AC characteristics, Chip Enable controlled
Symbol
Alt
Parameter
M28W640HCT,
M28W640HCB
70 ns
Unit
tAVAV
tWC
Write Cycle time
Min
70
ns
tAVEH
tAS
Address Valid to Chip Enable High
Min
45
ns
tDVEH
tDS
Data Valid to Chip Enable High
Min
45
ns
tEHAX
tAH
Chip Enable High to Address Transition
Min
0
ns
tEHDX
tDH
Chip Enable High to Data Transition
Min
0
ns
tEHEL
tCPH
Chip Enable High to Chip Enable Low
Min
25
ns
tEHGL
Chip Enable High to Output Enable Low
Min
25
ns
tEHWH
tWH
Chip Enable High to Write Enable High
Min
0
ns
tELEH
tCP
Chip Enable Low to Chip Enable High
Min
45
ns
tELQV
Chip Enable Low to Output Valid
Min
70
ns
tQVVPL
(1)(2)
1.
Sampled only, not 100% tested.
2.
Applicable if VPP is seen as a logic input (VPP < 3.6 V).
Output Valid to VPP Low
Min
0
ns
tQVWPL
Data Valid to Write Protect Low
Min
0
ns
tVPHEH
(1)
tVPS
VPP High to Chip Enable High
Min
200
ns
tWLEL
tCS
Write Enable Low to Chip Enable Low
Min
0
ns
tWPHEH
Write Protect High to Chip Enable High
Min
45
ns



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