Suspend-to-RAM controlling circuit

Details Suspend-to-RAM controlling circuit Suspend-to-RAM controlling circuit

2005-12-27

2005-12-27

Du, Thuan (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

By external command

C713S320000

Reexamination Certificate

active

06981162

ABSTRACT:
A suspend-to-RAM controlling circuit includes a RAM (random access memory) controller, a logic circuit and at least one RAM module. The RAM controller has a controlling pin connected to the logic circuit. Each of the RAM modules has a first enable pin and a second enable pin connected to output pins of the logic circuit. The RAM module is driven to the STR (suspend-to-RAM) state after receiving an STR signal from the logic circuit. Therefore, the RAM controller can provide STR signals to a plurality of RAM modules by only one controlling pin in incorporation with the logic circuit.

REFERENCES:
patent: 5612664 (1997-03-01), Hilgenberg et al.
patent: 6557071 (2003-04-01), Stolt et al.

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