Semiconductor memory device having block write function

Details Semiconductor memory device having block write function Semiconductor memory device having block write function

1991-12-06

1994-04-19

LaRoche, Eugene R.

Static information storage and retrieval

Addressing

Plural blocks or banks

36518901, 36518905, G11C 700

Patent

active

053052781

ABSTRACT:
A color data transferring circuit, a color data storing circuit, and a block selecting circuit 1020 are provided separately from an input/output buffer circuit, in order to transmit data stored in a color register to a memory cell block. In a block write mode, data applied to a data input/output terminal is stored in the color data storing circuit through color register and the color data transferring circuit. One block selecting gate is selected in response to a block selecting signal from a block decoder, and data stored in each storage element in the color data storing circuit is transmitted to a corresponding memory cell block. Input/output buffer circuit performs normal data writing only through a sense amplifier +I/O block. A semiconductor memory device capable of easily extending the number of bits of block write with a simple circuit configuration is implemented.

REFERENCES:
patent: 4636986 (1987-01-01), Pinkham
patent: 4639890 (1987-01-01), Heilveil et al.
patent: 4689741 (1987-08-01), Redwine et al.
patent: 4874692 (1989-11-01), Tokushige
patent: 4897818 (1990-01-01), Redwine et al.
patent: 4926385 (1990-05-01), Fujishima
patent: 5003510 (1991-03-01), Kamisaki
patent: 5140553 (1992-08-01), Choi et al.
Ray Pinkham et al, "A 128KX8 70-MHz Multiport Video RAM with Auto Register Reload and 8X4 Block Write Feature", IEEE Journal of Solid-State Circuits, vol. 23, No. 5, Oct. 1988.

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