发明名称 |
Method and apparatus for providing both power and control by way of an integrated circuit terminal |
摘要 |
A method and apparatus for providing both power and control by way of an integrated circuit terminal (22). In one form, a clock source (12) supplies a periodic signal to a phase lock loop circuit (32) and to a multiplexer (34). The output of the phase lock loop circuit (32) is a second input to the multiplexer (34). The phase lock loop circuit (32) receives its power from a power and control pin (22). The multiplexer (34) receives its power from a power pin (24). The power and control pin (22) is used as a control input to multiplexer (34). Multiplexer (34) uses the power and control pin (22) to select which input to output as a system clock.
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申请公布号 |
US5535398(A) |
申请公布日期 |
1996.07.09 |
申请号 |
US19920842951 |
申请日期 |
1992.02.28 |
申请人 |
MOTOROLA INC. |
发明人 |
BIGGS, TERRY L.;TIETJEN, DONALD L.;WILSON, JESSE R. |
分类号 |
G06F1/08;G06F1/10;G06F1/22;H03K17/693;(IPC1-7):G06F1/16 |
主分类号 |
G06F1/08 |
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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