Semiconductor device including clock selection circuitry selecti

Details Semiconductor device including clock selection circuitry selecti Semiconductor device including clock selection circuitry selecti

1992-06-25

1995-06-20

Gossage, Glenn

Static information storage and retrieval

Magnetic bubbles

Guide structure

365227, 36518905, 365208, 365233, 364707, 395750, 395550, 327 57, G06F 1300, G06F 108, G11C 700

Patent

active

054267552

ABSTRACT:
A semiconductor device and an electronic apparatus with the semiconductor device incorporated therein, include a sense amplifier so that a storage device can be read at a high speed and at a low speed, whereby low power consumption may be realized driving low speed reading. When a high speed mode is set and a read instruction is given, the sense amplifier is driven to send out a signal of a bit line to a data bus through the sense amplifier, while when a low speed mode is set and a read instruction is given, a sense amplifier is brought into a non-driven state to send out a signal of a bit line to a data bus without going through the sense amplifier. The semiconductor device may also include a clock control circuit and a clock selection circuit for selecting a high frequency clock signal when the high speed mode is set and for selecting a low frequency clock signal when the low speed mode is set.

REFERENCES:
patent: 4627033 (1986-12-01), Hyslop et al.
patent: 4862348 (1989-08-01), Nakamura
patent: 4881205 (1989-11-01), Aihara
patent: 5086387 (1992-02-01), Arroyo et al.
patent: 5261082 (1993-11-01), Ito et al.

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