Write driver and bit line precharge apparatus and method

Details Write driver and bit line precharge apparatus and method Write driver and bit line precharge apparatus and method

1998-02-06

1999-09-28

Nelms, David

Static information storage and retrieval

Read/write circuit

Precharge

36523003, G11C 700

Patent

active

059599162

ABSTRACT:
A write driver apparatus (10) is adapted for producing a first data output signal and a second data output signal used in driving data onto a bit line pair (16, 18) associated with an electronic computer memory. The first and second data output signals represent desired data and are produced in response to a data signal, refill signal, and a data propagation clock signal. The data propagation signal is derived from system clock signals. A precharge circuit (12) associated with the write driver (10) operates in response to a precharge clock signal to precharge the bit lines (16, 18) prior to each read or write operation. The precharge clock signal is related to the data propagation signal to ensure that the bit lines (16, 18) are fully precharged prior to a read operation. A keeper circuit (14) associated with the bit lines (16, 18) also helps maintain a desired charge state on the bit lines during a read operation from memory cells (20) connected to the bit lines.

REFERENCES:
patent: 5777942 (1998-07-01), Dosaka et al.

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