79C2040 查看數據表（PDF） - MAXWELL TECHNOLOGIES
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79C2040 Datasheet PDF : 17 Pages
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20 Megabit (512 x 40-Bit) EEPROM MCM
79C2040
PARAMETER
TABLE 7. 79C2040 AC ELECTRICAL CHARACTERISTICS FOR WRITE OPERATION
(V
CC
=
5V
±
10%,
TA
=
-55
TO
+125°
C)
SYMBOL
SUBGROUPS
MIN 1
MAX
Time to Device Busy
-150
-200
tDB
9, 10, 11
120
--
170
--
Write Start Time 3
-150
-200
tDW
9, 10, 11
150
--
250
--
RES to Write Setup Time4
-150
-200
tRP
9, 10, 11
100
--
200
--
VCC to RES Setup Time4
-150
-200
tRES
9, 10, 11
1
--
3
--
UNITS
ns
ns
µs
µs
1. Use this device in a longer cycle than this value.
2. tWC must be longer than this value unless polling techniques or RDY/BUSY are used. This device automatically completes the
internal write operation within this value.
3. Next read or write operation can be initiated after tDW if polling techniques or RDY/BUSY are used.
4. Guaranteed by design.
TABLE 8. 79C2040 MODE SELECTION 1
PARAMETER
CE 2
OE
WE
I/O
Read
Standby
Write
Deselect
Write Inhibit
VIL
VIL
VIH
X
VIL
VIH
VIL
VIH
X
X
X
VIL
Data Polling
VIL
VIL
Program Reset
X
X
1. Refer to the recommended DC operating conditions.
2. For CE0-3 only one CE can be used (active) at a time.
3. Bits 7, 15, 23, 31 and 39
VIH
DOUT
X
High-Z
VIL
DIN
VIH
High-Z
VIH
--
X
--
VIH
Data Out3
X
High-Z
RES
RDY/BUSY
VH
High-Z
X
High-Z
VH
High-Z --> VOL
VH
High-Z
X
--
X
--
VH
VOL
VL
High-Z
04.20.05 Rev 1
All data sheets are subject to change without notice 7
©2005 Maxwell Technologies
All rights reserved
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