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M28W640CB Datasheet(PDF) 29 Page - STMicroelectronics

Part # M28W640CB
Description  64 Mbit 4Mb x16, Boot Block 3V Supply Flash Memory
PDF  54 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M28W640CB Datasheet(HTML) 29 Page - STMicroelectronics

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M28W640CT, M28W640CB
Figure 12. Power-Up and Reset AC Waveforms
Table 18. Power-Up and Reset AC Characteristics
Note: 1. The device Reset is possible but not guaranteed if tPLPH < 100ns.
2. Sampled only, not 100% tested.
3. It is important to assert RP in order to allow proper CPU initialization during power up or reset.
Symbol
Parameter
Test Condition
M28W640C
Unit
80
90
tPHWL
tPHEL
tPHGL
Reset High to Write Enable Low, Chip
Enable Low, Output Enable Low
During Program
and Erase
Min
50
50
µs
others
Min
30
30
ns
tPLPH
(1,2)
Reset Low to Reset High
Min
100
100
ns
tVDHPH
(3)
Supply Voltages High to Reset High
Min
50
50
µs
AI03537b
W,
RP
tPHWL
tPHEL
tPHGL
E, G
VDD, VDDQ
tVDHPH
tPHWL
tPHEL
tPHGL
tPLPH
Power-Up
Reset



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