M28W640HCT70N6E NUMONYX, M28W640HCT70N6E Datasheet - Page 41

• Manufacturer Part Number: M28W640HCT70N6E
• Description: TSOP-1 48 12X20 CUSTD FLASH
• Manufacturer: NUMONYX

M28W640HCT, M28W640HCB
Figure 12. Power-up and Reset AC waveforms
Table 19.
1. The device reset is possible but not guaranteed if t
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.
t
t
PLPH
Symbol
VDHPH
W, E, G
RP
V
t
t
t
DD
PHWL
PHEL
PHGL
(1)(2)
(3)
Power-up and Reset AC characteristics
Reset High to Write Enable Low,
Chip Enable Low, Output Enable Low
Reset Low to Reset High
Supply voltages High to Reset High
tVDHPH
Power-up
Parameter
tPHWL
tPHGL
tPHEL
PLPH
< 100 ns.
During program and
Test condition
others
erase
Reset
tPLPH
DC and AC parameters
tPHWL
tPHGL
tPHEL
Min
Min
Min
Min
M28W640HCT,
M28W640HCB
70 ns
100
300
50
30
AI03537c
Unit
µs
ns
ns
µs
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