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參數(shù)資料
| 型號(hào)： | IBM038329NL6B |
| 廠商： | IBM Microeletronics |
| 英文描述： | 256K x 32 Synchronous Graphics RAM(256K x 32 高性能8M位CMOS同步動(dòng)態(tài)RAM（帶內(nèi)置的圖形性能）) |
| 中文描述： | 256K × 32同步圖形RAM（256K × 32位高性能800萬(wàn)的CMOS同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器（帶內(nèi)置的圖形性能）） |
| 文件頁(yè)數(shù)： | 22/66頁(yè) |
| 文件大?。?/td> | 952K |
| 代理商： | IBM038329NL6B |
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IBM038329NL6B
IBM038329NP6B
256K x 32 Synchronous Graphics RAM
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 22 of 66
03K4292.E35604
Revised 3/98
Self Refresh (SREF)
The Self Refresh command can be used to retain data in the SGRAM, even if the rest of the system is
powered down.
When in the Self Refresh mode, the SGRAM retains data without external clocking. Once
the SREF command is registered, all the inputs to the SGRAM become “don't care” with the exception of
CKE, which must remain low. Once SREF mode is engaged, the SGRAM provides its own internal clocking,
causing it to perform its own Auto Refresh cycles. The SGRAM may remain in Self Refresh mode for an
indefinite period. The procedure for exiting requires a sequence of commands. First, the system clock must
be stable prior to CKE going high.
Once CKE is high, the SGRAM must have NOP commands issued for
t
XSR
(100ns), because of the time required for the completion of any bank currently being internally
refreshed.
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| IBM038329NP6B | 256K x 32 Synchronous Graphics RAM(256K x 32 高性能8M位CMOS同步動(dòng)態(tài)RAM（帶內(nèi)置的圖形性能）) |
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| IBM038329NQ6A-7R5 | 制造商:IBM 功能描述: |
| IBM041812PQKB10 | 制造商:IBM 功能描述:* |
| IBM041812PQKB11 | 制造商:IBM 功能描述:* |
| IBM041813PQKB5 | 制造商:IBM 功能描述: |
| IBM0418A4ACLAA-4F | 制造商:IBM 功能描述: |
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