M5M5256DVP-15VXL-I Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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M5M5256DVP-15VXL-I Datasheet PDF : 7 Pages
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'97.4.7
MITSUBISHI LSIs
M5M5256DFP,VP,RV -10VLL-I,-12VLL-I,-15VLL-I,
-10VXL-I,-12VXL-I,-15VXL-I
262144-BIT (32768-WORD BY 8-BIT) CMOS STATIC RAM
AC ELECTRICAL CHARACTERISTICS (Ta = -40~85°C, Vcc=2.7~3.6V, unless otherwise noted )
(1) MEASUREMENT CONDITIONS
Input pulse level···················VIH=2.2V,VIL=0.4V
Input rise and fall time··········5ns
Reference level····················VOH=VOL=1.5V
Output loads·························Fig.1,CL=30pF (-10VLL,-10VXL )
1TTL
DQ
CL=50pF (-12VLL,-12VXL )
CL=100pF (-15VLL,-15VXL )
CL=5pF (for ten,tdis)
(Including
CL
scope and JIG)
Transition is measured ±500mV from steady
state voltage. (for ten,tdis)
Fig.1 Output load
(2) READ CYCLE
Symbol
Parameter
tCR
ta(A)
ta(S)
ta(OE)
tdis(S)
tdis(OE)
ten(S)
ten(OE)
tV(A)
Read cycle time
Address access time
Chip select access time
Output enable access time
Output disable time after /S high
Output disable time after /OE high
Output enable time after /S low
Output enable time after /OE low
Data valid time after address
Limits
-10VLL, VXL -12VLL, VXL -15VLL, VXL Unit
Min Max Min Max Min Max
100
120
150
ns
100
120
150 ns
100
120
150 ns
50
60
75 ns
30
35
40 ns
30
35
40 ns
10
10
10
ns
10
10
10
ns
10
10
10
ns
(3) WRITE CYCLE
Limits
Symbol
Parameter
-10VLL, VXL -12VLL, VXL -15VLL, VXL Unit
Min Max Min Max Min Max
tCW
Write cycle time
100
120
150
ns
tw(W) Write pulse width
70
80
90
ns
tsu(A) Address setup time
0
0
0
ns
tsu(A-WH) Address setup time with respect to /W high 80
90
100
ns
tsu(S) Chip select setup time
80
90
100
ns
tsu(D)
th(D)
trec(W)
Data setup time
Data hold time
Write recovery time
40
45
50
ns
0
0
0
ns
0
0
0
ns
tdis(W)
tdis(OE)
ten(W)
Output disable time from /W low
Output disable time from /OE high
Output enable time from /W high
30
35
40 ns
30
35
40 ns
10
10
10
ns
ten(OE) Output enable time from /OE low
10
10
10
ns
MITSUBISHI
ELECTRIC
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