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參數(shù)資料
| 型號(hào)： | MT48LC32M4A2P-7ELIT:G |
| 元件分類： | DRAM |
| 英文描述： | 32M X 4 SYNCHRONOUS DRAM, 5.4 ns, PDSO54 |
| 封裝： | 0.400 INCH, LEAD FREE, PLASTIC, TSOP2-54 |
| 文件頁數(shù)： | 48/74頁 |
| 文件大小： | 2385K |
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PDF: 09005aef8091e66d/Source: 09005aef8091e625
Micron Technology, Inc., reserves the right to change products or specifications without notice.
128MSDRAM_2.fm - Rev. N 1/09 EN
52
1999 Micron Technology, Inc. All rights reserved.
128Mb: x4, x8, x16 SDRAM
Notes
12. Other input signals are allowed to transition no more than once every 2 clocks and are
otherwise at valid VIH or VIL levels.
13. IDD specifications are tested after the device is properly initialized.
14. Timing actually specified by tCKS; clock(s) specified as a reference only at minimum
cycle rate.
15. Timing actually specified by tWR plus tRP; clock(s) specified as a reference only at
minimum cycle rate.
16. Timing actually specified by tWR.
17. Required clocks are specified by JEDEC functionality and are not dependent on any
timing parameter.
18. The IDD current will increase or decrease proportionally according to the amount of
frequency alteration for the test condition.
19. Address transitions average one transition every 2 clocks.
20. CLK must be toggled a minimum of two times during this period.
21. Based on tCK = 7.5ns for -75/-7E, and tCK = 6ns for -6A.
22. VIH overshoot: VIH (MAX) = VDDQ + 2V for a pulse width ≤ 3ns, and the pulse width
cannot be greater than one-third of the cycle rate. VIL undershoot: VIL (MIN) = –2V for
a pulse width ≤ 3ns.
23. The clock frequency must remain constant (stable clock is defined as a signal cycling
within timing constraints specified for the clock pin) during access or precharge
states (READ, WRITE, including tWR, and PRECHARGE commands). CKE may be
used to reduce the data rate.
24. Auto precharge mode only. The precharge timing budget (tRP) begins 6ns for -6A, 7ns
for -7E, and 7.5ns for -75 after the first clock delay, after the last WRITE is executed.
25. Precharge mode only.
26. JEDEC and PC100 specify 3 clocks.
27. tAC for -75/-7E at CL = 3 with no load is 4.6ns and is guaranteed by design.
28. Parameter guaranteed by design.
29. PC100 specifies a maximum of 4pF.
30. PC100 specifies a maximum of 5pF.
31. PC100 specifies a maximum of 6.5pF.
32. For -75, CL = 3 and tCK = 7.5ns; for -7E, CL = 2 and tCK = 7.5ns, and CL = 3 and tCK =
6ns.
33. CKE is HIGH during refresh command period tRFC (MIN) else CKE is LOW. The IDD6
limit is actually a nominal value and does not result in a fail value.
34. PC133 specifies a minimum of 2.5pF.
35. PC133 specifies a minimum of 2.5pF.
36. PC133 specifies a minimum of 3.0pF.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MT48LC32M4A2TG | 制造商:MICRON 制造商全稱:Micron Technology 功能描述:SYNCHRONOUS DRAM |
| MT48LC32M4A2TG-75 | 制造商:MICRON 制造商全稱:Micron Technology 功能描述:SYNCHRONOUS DRAM |
| MT48LC32M4A2TG-75IT | 制造商:MICRON 制造商全稱:Micron Technology 功能描述:SYNCHRONOUS DRAM |
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