发明名称 |
Self timed memory chip having an apportionable data bus |
摘要 |
A self timed memory chip having an apportionable data bus. Access timing to an array on the memory chip is dynamically determined by circuitry on the memory chip. A ring oscillator on the memory chip has a frequency that is indicative of how fast an array on the memory chip can be accessed. The ring oscillator includes a bit line that is periodically charged and a memory element that subsequently discharges the bit line. The memory chip has a data bus interface having a number of bits. The data bus interface has a first number of bits apportioned to write data and a second number of bits apportioned to read data. The first number of bits and the second number of bits is programmable.
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申请公布号 |
US7546410(B2) |
申请公布日期 |
2009.06.09 |
申请号 |
US20060459947 |
申请日期 |
2006.07.26 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BARTLEY GERALD KEITH;BECKER DARRYL JOHN;BORKENHAGEN JOHN MICHAEL;DAHLEN PAUL ERIC;GERMANN PHILIP RAYMOND;MAKI ANDREW BENSON;MAXSON MARK OWEN |
分类号 |
G06F12/00;G06F13/00;G06F13/28 |
主分类号 |
G06F12/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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