IDT70V24L20GI データシートの表示（PDF） - Integrated Device Technology
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IDT70V24L20GI Datasheet PDF : 22 Pages
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IDT70V24S/L
High-Speed 4K x 16 Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range(4)
70V24X15
Com'l Only
70V24X20
Com'l
& Ind
70V24X25
Com'l
& Ind
Symbol
Parameter
Min. Max. Min. Max. Min. Max. Unit
READ CYCLE
tRC
Read Cycle Time
15
____
20
____
25
____
ns
tAA
Address Access Time
____
15
____
20
____
25
ns
tACE
Chip Enable Access Time(3)
____
15
____
20
____
25
ns
tABE
Byte Enable Access Time(3)
____
15
____
20
____
25
ns
tAOE
Output Enable Access Time(3)
____
10
____
12
____
13
ns
tOH
Output Hold from Address Change
3
____
3
____
3
____
ns
tLZ
Output Low-Z Time(1,2)
3
____
3
____
3
____
ns
tHZ
Output High-Z Time(1,2)
____
10
____
12
____
15
ns
tPU
Chip Enable to Power Up Time(1,2)
0
____
0
____
0
____
ns
tPD
Chip Disable to Power Down Time(1,2)
____
15
____
20
____
25
ns
tSOP
Semaphore Flag Update Pulse (OE or SEM)
10
____
10
____
10
____
ns
tSAA
Semaphore Address Access(3)
____
15
____
20
____
25
ns
2911 tbl 11a
70V24X35
Com'l
& Ind
70V24X55
Com'l
& Ind
Symbol
Parameter
Min. Max. Min. Max. Unit
READ CYCLE
tRC
Read Cycle Time
35
____
55
____
ns
tAA
Address Access Time
tACE
Chip Enable Access Time(3)
tABE
Byte Enable Access Time(3)
tAOE
Output Enable Access Time(3)
____
35
____
55
ns
____
35
____
55
ns
____
35
____
55
ns
____
20
____
30
ns
tOH
Output Hold from Address Change
tLZ
Output Low-Z Time(1,2)
tHZ
Output High-Z Time(1,2)
tPU
Chip Enable to Power Up Time(1,2)
tPD
Chip Disable to Power Down Time(1,2)
tSOP
Semaphore Flag Update Pulse (OE or SEM)
tSAA
Semaphore Address Access(3)
3
____
3
____
ns
3
____
3
____
ns
____
15
____
25
ns
0
____
0
____
ns
____
35
____
50
ns
15
____
15
____
ns
____
35
____
55
ns
NOTES:
1. Transition is measured 0mV from Low or High-impedance voltage with Output Test Load (Figure 2).
2. This parameter is guaranteed by device characterization, but is not production tested.
3. To access RAM, CE = VIL, UB or LB = VIL, and SEM = VIH. To access semaphore, CE = VIH or UB and LB = VIH, and SEM = VIL.
4. 'X' in part number indicates power rating (S or L).
2911 tbl 11b
6.842
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