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參數(shù)資料
| 型號： | MCM67A618B |
| 廠商： | Motorola, Inc. |
| 英文描述： | 64K x 18 Bit Asynchronous/ Latched Address Fast Static RAM |
| 中文描述： | 64K的× 18位異步/鎖存地址快速靜態(tài)存儲器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 141K |
| 代理商： | MCM67A618B |
MCM67A618B
8
MOTOROLA FAST SRAM
LATCHED READ CYCLE TIMING
(See Notes 1 and 2)
MCM67A618B–10
MCM67A618B–12
MCM67A618B–15
Parameter
Symbol
Min
Max
Min
Max
Min
Max
Unit
Notes
Read Cycle Times
tAVAV
10
—
12
—
15
—
ns
3
Access Times:
Address Valid to Output Valid
E Low to Output Valid
AL High to Output Valid
Output Enable Low to Output Valid
tAVQV
tELQV
tALHQV
tGLQV
—
—
—
—
10
10
10
5
—
—
—
—
12
12
12
6
—
—
—
—
15
15
15
7
ns
3
4
Setup Times:
Address Valid to AL Low
E Valid to AL Low
Address Valid to AL High
E Valid to AL High
tAVALL
tEVALL
tAVALH
tEVALH
2
2
0
0
—
—
—
—
2
2
0
0
—
—
—
—
2
2
0
0
—
—
—
—
ns
4
4
Hold Times:
AL Low to Address Invalid
AL Low to E Invalid
tALLAX
tALLEX
2
2
—
—
2
2
—
—
3
3
—
—
ns
4
Output Hold:
Address Invalid to Output Invalid
AL High to Output Invalid
tAXQX
tALHQX1
4
4
—
—
4
4
—
—
4
4
—
—
ns
Address Latch Pulse Width
tALHALL
5
—
5
—
5
—
ns
Output Buffer Control:
E Low to Output Active
G Low to Output Active
AL High to Output Active
E High to Output High–Z
AL High to Output High–Z
G High to Output High–Z
tELQX
tGLQX
tALHQX2
tEHQZ
tALHQZ
tGHQZ
1
3
2
2
2
—
—
—
5
5
5
3
1
3
2
2
2
—
—
—
6
6
6
3
1
3
2
2
2
—
—
—
9
9
7
ns
5
NOTES:
1. Both Write Enable Signals (LW, UW) are equal to VIH for all read cycles.
2. All read cycle timing is referenced from the last valid address to the first transitioning address.
3. Addresses valid prior to or coincident with E going low.
4. All latched inputs must meet the specified setup and hold times with stable logic levels for ALL falling edges of address latch (AL) and data
latch (DL).
5. Transition is measured
±
500 mV from steady–state voltage with output load of Figure 1b. This parameter is sampled and not 100% tested.
At any given voltage and temperature, tEHQZ is less than tELQX and tALHQZ is less than tALHQX2 and tGHQZ is less than tGLQX for
a given device.
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| MCM67A618BFN10 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:64K x 18 Bit Asynchronous/ Latched Address Fast Static RAM |
| MCM67A618BFN12 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:64K x 18 Bit Asynchronous/ Latched Address Fast Static RAM |
| MCM67A618BFN15 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:64K x 18 Bit Asynchronous/ Latched Address Fast Static RAM |
| MCM67A618FN10 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:64K x 18 Bit Asychronous/Latched Address Fast Static RAM |
| MCM67A618FN12 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:64K x 18 Bit Asychronous/Latched Address Fast Static RAM |
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