公开(公告)号：DE1279747B

公开(公告)日：1968-10-10

申请号：DEJ0030614

申请日：1966-04-14

Applicant: IBM

Inventor： FARBER ARNOLD STANLEY ,  SCHLIG EUGENE STEWART

IPC: G11C11/38 ,  G11C11/411 ,  H03K3/286 ,  H03K3/288 ,  H03K3/315 ,  G11C11/34

Abstract: 1,065,702. Semi-conductor data storage matrix. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 17, 1966 [April 19, 1965 (2)], No. 6937/66. Heading G4C. [Also in Division H3] The input of a bi-stable storage circuit is connected to the base of a transistor so as to be switched by base current which flows when a current is applied to the emitter and a pulse is applied to the collector to cause the transistor to saturate. The Figure shows a conventional cross-coupled bi-stable circuit Q4, Q5 for a storage matrix having a word driver line W and bit drive and read out lines A, B. If the circuit is in the state in which Q4 is conducting the base of a gating transistor Q2 is at - V volts whereas the base of Q3 is at earth potential. Accordingly when a word pulse cuts off driver transistor Q1 the current from R1 flows through Q3 to indicate in line B by a current pulse and in line A by the absence of a pulse, the state of the circuit. If, however, coincident with the pulse at W a negative pulse is applied at B, transistor Q3 will saturate and substantial emitter current will flow to the base of Q3 to render QS conducting and so change the state of the circuit. The original state will be similarly restored by coincident pulses at W and A instead of Q1 may be omitted if the word pulse W is applied at Ve (Fig. 5, not shown) and one of Q2, Q3 may be omitted if alternative reset arrangements are provided. In Fig. 6 (not shown) the bi-stable circuit is replaced by a tunnel diode (T), transistor Q2 having its base connected to the diode so that base current will change the state in one direction, the supply to the diode being derived from a line (c) to which reset pulses may be provided. The circuits may be arranged in a matrix (Fig. I, not shown) with word drivers (WD) connected to a line terminated in its characteristic impedance (Z) and the bit lines connected to bit drivers (BD) and sense amplifiers (SA).