IDT70V16S 데이터 시트보기 (PDF) - Integrated Device Technology
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IDT70V16S Datasheet PDF : 18 Pages
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ELIMINARY
IDT70V16/5S/L
High-Speed 3.3V 16/8K x 9 Dual-Port Static RAM
PRELIMINARY
Industrial and Commercial Temperature Ranges
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range(4)
70V16/5X15
Com'l Only
70V16/5X20
Com'l
& Ind
70V16/5X25
Com'l Only
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)
tSOP
Semaphore Flag Update Pulse (OE or SEM)
____
15
____
20
____
25
ns
10
____
10
____
10
____
ns
tSAA
Semaphore Address Access(3)
____
15
____
20
____
25
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 and SEM = VIH. To access semaphore, CE = VIH and SEM = VIL.
4. 'X' in part number indicates power rating (S or L).
5669 tbl 11
Waveform of Read Cycles(5)
ADDR
CE
OE
tRC
tAA(4)
(4)
tACE
tAOE (4)
R/W
DATAOUT
tLZ (1)
tOH
(4)
VALID DATA
tHZ(2)
BUSYOUT
tBDD(3,4)
5669 drw 06
NOTES:
1. Timing depends on which signal is asserted last, OE or CE.
2. Timing depends on which signal is de-asserted first, CE or OE.
3. tBDD delay is required only in cases where the opposite port is completing a write operation to the same address location. For simultaneous read operations BUSY
has no relation to valid output data.
4. Start of valid data depends on which timing becomes effective last: tAOE, tACE, tAA or tBDD.
5. SEM = VIH.
6.472
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