28C256TRT4DI-15 查看數據表（PDF） - MAXWELL TECHNOLOGIES
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28C256TRT4DI-15 Datasheet PDF : 14 Pages
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256K EEPROM (32K x 8-Bit) EEPROM
28C256T
TABLE 8. 28C256T AC ELECTRICAL CHARACTERISTICS FOR PAGE/BYTE ERASE AND WRITE OPERATIONS
(VCC = 5V ±10%, TA = -55 TO 125 °C UNLESS OTHERWISE SPECIFIED)
PARAMETER
SYMBOL
MIN1
TYP
MAX
UNITS
WE Pulse Width
-120
-150
CE Pulse Width
-120
-150
tWP 2
ns
200
--
--
250
--
--
tCW 3
200
--
--
250
--
--
Address Hold Time
-120
-150
tAH
ns
150
--
--
150
--
--
Data Setup Time
-120
-150
tDS
ns
75
--
--
100
--
--
Data Hold Time
-120
-150
tDH
ns
10
--
--
10
--
--
Chip Enable Hold Time2
-120
-150
tCH
ns
0
--
--
0
--
--
Output Enable to Write Setup Time
-120
-150
tOES
ns
0
--
--
0
--
--
Output Enable Hold Time
-120
-150
Data Latch Time4
-120
-150
tOEH
ns
0
--
--
0
--
--
tDL
ns
--
230
--
--
280
--
Write Cycle Time
-120
-150
tWC
--
--
ms
--
10
--
10
Byte Load Window4
-120
-150
tBL
us
--
100
--
--
100
--
Byte Load Cycle4
-120
-150
tBLC
us
0.55
--
30
0.55
--
30
Write Start Time
-120
-150
tDW
ns
120
--
--
150
--
--
1. Use this device in a longer cycle than this value.
2. WE controlled operation.
3. CE controlled operation.
4. Not tested.
1000584
12.19.01 Rev 5
All data sheets are subject to change without notice 5
©2001 Maxwell Technologies
All rights reserved.
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