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在大型快速电子计算机迅速发展的今天,对作为主存的磁心存储器的速度、容量、可靠性和可扩充性等要求越来越高。而可靠性问题又是其中特别重要的一个环节。为保证大容量磁心存储器的可靠性,除了电子元件、工艺等方面因素外,保证磁心体有一个可靠的工作域也是十分重要的。本文以一台容量3.2万字、字长56位、周期1.5μs的磁心存储器为例,着重从磁心性能、磁心板测试、磁心体工作域及磁心体温度特性等几个方面说明确保一台磁心存储器获得磁心体可靠工作域的必要措施。本文所介绍的磁心存储器采用0.6mm×0.4mm的锂锰半宽温磁心,采用重合法二度半三线矩阵方式,驱动方式为均分负载二极管导引。该存储器使用级延迟为10ns的TTL组件,驱动部分的中功率三极管及放大器用的差分对管采用分离元件组装。
Today, with the rapid development of large-scale fast electronic computers, there is a growing demand for the speed, capacity, reliability and scalability of the core memory as the main memory. Reliability is one of the most important aspects. In order to ensure the reliability of large-capacity core memory, in addition to electronic components, technology and other factors, to ensure that the core body has a reliable work area is also very important. In this paper, a 32000 words capacity, word length 56, the cycle of 1.5μs core memory, for example, focusing on core performance, core board testing, core body work area and core body temperature characteristics of several aspects of ensuring a core memory The necessary measures to obtain the reliable work area of magnetic body. The magnetic core memory introduced in this paper adopts the 0.6mm × 0.4mm lithium manganese half-width temperature core, adopts the coincidence second-half three-wire matrix method and the driving method is the uniform load diode guidance. The memory uses a TTL component with a 10-ns level delay, a middle-power transistor in the driver section, and a differential pair in the amplifier, using separate components.