TTL compatible CMOS input circuit

Details TTL compatible CMOS input circuit TTL compatible CMOS input circuit

1987-01-02

1988-01-05

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307451, 307576, 307579, 307585, 307270, 323315, H03K 19092, H03K 17687, H03K 19094, G05F 316

Patent

active

047178450

ABSTRACT:
A TTL compatible CMOS input circuit comprising a series of current mirror circuits arranged so that the input transistor is used to discharge the capacitive load and one of a pair of transistors in one of the current mirror circuits provides charging current for the load. Only one of the charging and discharging transistor switches in "on" at any one time, thus reducing circuit power consumption and reducing required device sizes. The input switching level is also independent of the supply voltage.

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patent: 4438352 (1984-03-01), Mardkha
patent: 4469959 (1984-09-01), Luke et al.
patent: 4471242 (1984-09-01), Noufer et al.
patent: 4475050 (1984-10-01), Noufer
patent: 4485317 (1984-11-01), Davies, Jr.
patent: 4490633 (1984-12-01), Noufer et al.
patent: 4555642 (1985-11-01), Marales
patent: 4578600 (1986-03-01), Magee
patent: 4584491 (1986-04-01), Ulmer
patent: 4587447 (1986-05-01), Baehring

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