发明名称 |
Level shifter circuit for level adjustment |
摘要 |
Apparatuses for level adjustment are essential to make adjustments to signals between integrated circuits having differing signal levels in electronic circuits. To assure signal adjustment for a large number of signals, as occur in parallel busses, an apparatus for level adjustment is used. This digital level adjustment uses the I/O cells already present in the integrated circuits with an externally wired pullup resistor and an internal digitally programmed or constructed signal connection for controlling output drivers.
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申请公布号 |
US6552568(B2) |
申请公布日期 |
2003.04.22 |
申请号 |
US20010989961 |
申请日期 |
2001.11.21 |
申请人 |
PHOENIX CONTACT GMBH & CO. KG |
发明人 |
ESCH RAINER |
分类号 |
H03K19/00;H03K19/003;(IPC1-7):H03K19/017 |
主分类号 |
H03K19/00 |
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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