M28C64C Ver la hoja de datos (PDF) - STMicroelectronics
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M28C64C Datasheet PDF : 15 Pages
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M28C64C, M28C64X
Table 9. Write Mode AC Characteristics
(TA = 0 to 70°C or –40 to 85°C, VCC = 4.5V to 5.5V)
Symbol
Alt
Parameter
tAVWL
tAS
Address Valid to Write Enable Low
tAVEL
tAS
Address Valid to Chip Enable Low
tELWL
tCES
Chip Enable Low to Write Enable Low
tGHWL
tOES
Output Enable High to Write Enable
Low
tGHEL
tWLEL
tOES
Output Enable High to Chip Enable Low
tWES
Write Enable Low to Chip Enable Low
tWLAX
tELAX
tAH
Write Enable Low to Address Transition
tAH
Chip Enable Low to Address Transition
tWLDV
tELDV
tDV
Write Enable Low to Input Valid
tDV
Chip Enable Low to Input Valid
tWLWH
tWP
Write Enable Low to Write Enable High
tELEH
tWHEH
tWP
Chip Enable Low to Chip Enable High
tCEH
Write Enable High to Chip Enable High
tWHGL
tOEH
Write Enable High to Output Enable
Low
tEHGL
tOEH
Chip Enable High to Output Enable Low
tEHWH
tWHDX
tEHDX
tWHWL
tWHWH
tWHRH
tWHRL
tWEH
tDH
tDH
tWPH
tBLC
tWC
tDB
Chip Enable High to Write Enable High
Write Enable High to Input Transition
Chip Enable High to Input Transition
Write Enable High to Write Enable Low
Byte Load Repeat Cycle Time
Write Cycle Time
Write Enable High to Ready/Busy Low
tEHRL
tDVWH
tDB
Chip Enable High to Ready/Busy Low
tDS
Data Valid before Write Enable High
tDVEH
tDS
Data Valid before Chip Enable High
Note: 1. With a 3.3 kΩ external pull-up resistor.
Test Condition
E = VIL, G = VIH
G = VIH, W = VIL
G = VIH
E = VIL
W = VIL
G = VIH
E = VIL, G = VIH
G = VIH, W = VIL
Note 1
Note 1
Min Max Unit
0
ns
0
ns
0
ns
0
ns
0
ns
0
ns
150
ns
150
ns
1
µs
1
µs
150
ns
150
ns
0
ns
10
ns
10
ns
0
ns
0
ns
0
ns
200
ns
0.35 50
µs
5
ms
220
ns
220
ns
50
ns
50
ns
7/15
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