公开(公告)号：US4962341A

公开(公告)日：1990-10-09

申请号：US151423

申请日：1988-02-02

申请人： John A. Schoeff

发明人： John A. Schoeff

IPC分类号： G05F1/577 ,  H03K3/037 ,  H03K19/018 ,  H03K19/082 ,  H03K19/0944 ,  H03K19/173 ,  H03K19/21

CPC分类号： G05F1/577 ,  H03K19/01806 ,  H03K19/082 ,  H03K19/0944 ,  H03K19/09441 ,  H03K19/1735 ,  H03K19/21 ,  H03K19/212 ,  H03K3/037

摘要： Digital logic circuitry designed to operate on a low voltage power supply without substantial transistor saturation thereby achieving lower power and higher opeational speeds. A non-saturating inverter with a low voltage swing can be made with one transistor using standard bipolar production processes and without clamp diodes. The novel circuitry uses logic units which can be modularly combined to form various other logical functions such as inverters, gates, flip-flops, etc. The preferred logic units use a transistor with the base connected by a load resistor to a first current network. The logical input is between the load resistor and base. The emitter is connected either directly or via one or more resistors to a second current network. The first and second power networks are constructed and arranged to provide a voltage-varying profile across both networks which are preferably complementary to provide nearly constant differential voltages across the logic units. The differential voltages can be relatively low, such as less than 1 volt, thus providing low power operation. The power networks provide the biasing voltage for the logic units without separate biasing circuitry. The inverters, gates or other logical units are advantageously grouped into current balanced groups which conduct approximatley constant current between the power networks for a variety of logical code combinations. The total current flow is preferably balanced to be approximatley constant. A means for providing a relatively fixed amount of current matched to equal the balanced total current flow for the logic array is also preferably used. Also disclosed are preferred power networks, logic signal interconnect methods, a preferred gate array and methods for operating such circuits in non-saturating manners.

摘要翻译： 数字逻辑电路设计为在低电压电源上工作，而没有实质的晶体管饱和，从而实现更低的功率和更高的运行速度。 具有低电压摆幅的非饱和型逆变器可以通过一个晶体管使用标准的双极制造工艺，而不需要钳位二极管。 新颖的电路使用逻辑单元，其可以被模块化组合以形成诸如逆变器，门，触发器等的各种其他逻辑功能。优选的逻辑单元使用晶体管，其基极通过负载电阻器连接到第一当前网络。 逻辑输入位于负载电阻和基极之间。 发射极直接或通过一个或多个电阻连接到第二个当前网络。 第一和第二电力网络被构造和布置成在两个网络上提供电压变化的分布，这两个网络优选是互补的，以在逻辑单元上提供几乎恒定的差分电压。 差分电压可以相对较低，例如小于1伏，从而提供低功率操作。 电力网络为逻辑单元提供偏置电压，而无需单独的偏置电路。 逆变器，门或其他逻辑单元有利地被组合成电流平衡组，其对于各种逻辑代码组合在电力网络之间传导近似恒定电流。 总电流优选平衡为近似常数。 还优选使用用于提供与逻辑阵列的平衡总电流相匹配的相对固定量的电流的装置。 还公开了优选的电力网络，逻辑信号互连方法，优选的门阵列和用于以非饱和方式操作这些电路的方法。