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NAND256-A датащи(PDF) 46 Page - STMicroelectronics

номер детали NAND256-A
подробное описание детали  128 Mbit, 256 Mbit, 512 Mbit, 1 Gbit (x8/x16) 528 Byte/264 Word Page, 1.8V/3V, NAND Flash Memories
PDF  57 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

NAND256-A датащи(HTML) 46 Page - STMicroelectronics

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Ready/Busy Signal Electrical Characteristics
Figures 35, 34 and 36 show the electrical charac-
teristics for the Ready/Busy signal. The value re-
quired for the resistor RP can be calculated using
the following equation:
So,
where IL is the sum of the input currents of all the
devices tied to the Ready/Busy signal. RP max is
determined by the maximum value of tr.
Figure 34. Ready/Busy AC Waveform
Figure 35. Ready/Busy Load Circuit
Figure 36. Resistor Value Versus Waveform Timings For Ready/Busy Signal
Note: T = 25°C.
RPmin
VDDmax VOLmax
–
()
IOL
IL
+
------------------------------------------------------------
=
RPmin 1.8V
()
1.85V
3mA
IL
+
---------------------------
=
RPmin 3V
()
3.2V
8mA
IL
+
---------------------------
=
AI07564B
busy
VOH
ready VDD
VOL
tf
tr
AI07563B
RP
VDD
VSS
RB
DEVICE
Open Drain Output
ibusy
ai07565B
RP (KΩ)
12
3
4
100
300
200
1
2
3
1.7
0.85
30
1.7
1.7
1.7
1.7
tr
tf
ibusy
0
400
4
RP (KΩ)
12
3
4
100
300
200
1
2
3
2.4
1.2
0.8
0.6
100
200
300
400
3.6
3.6
3.6
3.6
0
400
4
VDD = 1.8V, CL = 30pF
VDD = 3.3V, CL = 100pF
60
90
120
0.57
0.43



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