Invention Grant
- Patent Title: Method and apparatus for synchronization of row and column access operations
- Patent Title (中): 用于同步行和列访问操作的方法和装置
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Application No.: US12878601Application Date: 2010-09-09
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Publication No.: US07957211B2Publication Date: 2011-06-07
- Inventor: Paul Demone
- Applicant: Paul Demone
- Applicant Address: CA Ottawa, Ontario
- Assignee: Mosaid Technologies Incorporation
- Current Assignee: Mosaid Technologies Incorporation
- Current Assignee Address: CA Ottawa, Ontario
- Agency: Borden Ladner Gervais LLP
- Agent Shin Hung
- Priority: CA2313949 20000707
- Main IPC: G11C7/00
- IPC: G11C7/00

Abstract:
A circuit for synchronizing row and column access operations in a semiconductor memory having an array of bit line pairs, word lines, memory cells, sense amplifiers, and a sense amplifier power supply circuit for powering the sense amplifiers, the circuit comprising, a first delay circuit for delaying a word line timing pulse by a first predetermined period, a first logic circuit for logically combining the word line timing pulse and the delayed word line timing pulse to produce a sense amplifier enable signal, for enabling a sense amplifier power supply circuit, a second delay circuit for delaying the word line timing pulse by a second predetermined period, and a second logic circuit for logically combining the word line timing pulse and the second delayed word line timing pulse to produce a column select enable signal, for enabling selected ones of a plurality of column access devices wherein the second predetermined time period is selected so that ones of a plurality of column access devices are activated after the sense amplifier power supply circuit is enabled.
Public/Granted literature
- US20100329051A1 METHOD AND APPARATUS FOR SYNCHRONIZATION OF ROW AND COLUMN ACCESS OPERATIONS Public/Granted day:2010-12-30
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