JP4159553B2 - 半導体装置の出力回路及びこれを備える半導体装置、並びに、出力回路の特性調整方法 - Google Patents
半導体装置の出力回路及びこれを備える半導体装置、並びに、出力回路の特性調整方法 Download PDFInfo
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- JP4159553B2 JP4159553B2 JP2005011272A JP2005011272A JP4159553B2 JP 4159553 B2 JP4159553 B2 JP 4159553B2 JP 2005011272 A JP2005011272 A JP 2005011272A JP 2005011272 A JP2005011272 A JP 2005011272A JP 4159553 B2 JP4159553 B2 JP 4159553B2
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/28—Impedance matching networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/31712—Input or output aspects
- G01R31/31713—Input or output interfaces for test, e.g. test pins, buffers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/4063—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
- G11C11/409—Read-write [R-W] circuits
- G11C11/4093—Input/output [I/O] data interface arrangements, e.g. data buffers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/02—Detection or location of defective auxiliary circuits, e.g. defective refresh counters
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/02—Detection or location of defective auxiliary circuits, e.g. defective refresh counters
- G11C29/022—Detection or location of defective auxiliary circuits, e.g. defective refresh counters in I/O circuitry
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/02—Detection or location of defective auxiliary circuits, e.g. defective refresh counters
- G11C29/028—Detection or location of defective auxiliary circuits, e.g. defective refresh counters with adaption or trimming of parameters
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/50—Marginal testing, e.g. race, voltage or current testing
- G11C29/50008—Marginal testing, e.g. race, voltage or current testing of impedance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0005—Modifications of input or output impedance
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Dram (AREA)
- Logic Circuits (AREA)
Description
110 第1の出力バッファ
111〜113,121〜123 単位バッファ
120 第2の出力バッファ
130 キャリブレーション回路
131,132,PU プルアップ回路
133,PD プルダウン回路
134,135 カウンタ
136,137 コンパレータ
138,139,231,232,331,332 抵抗
150 出力制御回路
161〜163 前段回路
170 入力バッファ
211〜215,311〜315 PチャンネルMOSトランジスタ
221〜225,321〜325 NチャンネルMOSトランジスタ
411〜415 OR回路
421〜425 AND回路
DQ データピン
ZQ キャリブレーション用ピン
Claims (5)
- 所定のデータピンに接続され、少なくともデータ出力時に活性化される第1の出力バッファと、
前記所定のデータピンと同じデータピンに接続され、少なくともODT動作時に活性化される第2の出力バッファと、
キャリブレーション用ピンに接続され、前記第1及び第2の出力バッファのインピーダンスを一括して設定するキャリブレーション回路とを備え、
前記第1及び第2の出力バッファは、それぞれ1又は並列接続された2以上のインピーダンス調整可能な単位バッファによって構成されており、前記単位バッファは、互いに実質的に同一の回路構成を有しており、
前記キャリブレーション回路は、前記第1及び第2の出力バッファを構成する複数の前記単位バッファのインピーダンスを一括して同じインピーダンスに設定することを特徴とする半導体装置の出力回路。 - 前記第2の出力バッファは、前記データ出力時にも活性化されることを特徴とする請求項1に記載の半導体装置の出力回路。
- 前記第1の出力バッファは、前記ODT動作時には非活性化されることを特徴とする請求項1又は2に記載の半導体装置の出力回路。
- 前記キャリブレーション回路には、前記単位バッファと実質的に同じ回路構成を有するレプリカバッファが含まれていることを特徴とする請求項1乃至3のいずれか一項に記載の半導体装置の出力回路。
- 請求項1乃至4のいずれか1項に記載の出力回路を備えることを特徴とする半導体装置。
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005011272A JP4159553B2 (ja) | 2005-01-19 | 2005-01-19 | 半導体装置の出力回路及びこれを備える半導体装置、並びに、出力回路の特性調整方法 |
US11/327,425 US7215128B2 (en) | 2005-01-19 | 2006-01-09 | Output circuit for semiconductor device, semiconductor device having output circuit, and method of adjusting characteristics of output circuit |
CN2006100036244A CN1808902B (zh) | 2005-01-19 | 2006-01-09 | 输出电路、半导体器件和调整输出电路的特性的方法 |
US11/783,787 US7495453B2 (en) | 2005-01-19 | 2007-04-12 | Output circuit for semiconductor device, semiconductor device having output circuit, and method of adjusting characteristics of output circuit |
US12/364,296 US7808270B2 (en) | 2005-01-19 | 2009-02-02 | Output circuit for semiconductor device, semiconductor device having output circuit, and method of adjusting characteristics of output circuit |
US12/883,563 US8198911B2 (en) | 2005-01-19 | 2010-09-16 | Output circuit for semiconductor device, semiconductor device having output circuit, and method of adjusting characteristics of output circuit |
US13/468,691 US9047986B2 (en) | 2005-01-19 | 2012-05-10 | Output circuit for semiconductor device, semiconductor device having output circuit, and method of adjusting characteristics of output circuit |
US14/727,096 US9391612B2 (en) | 2005-01-19 | 2015-06-01 | Output circuit for semiconductor device, semiconductor device having output circuit, and method of adjusting characteristics of output circuit |
US15/177,646 US9641175B2 (en) | 2005-01-19 | 2016-06-09 | Output circuit for semiconductor device, semiconductor device having output circuit, and method of adjusting characteristics of output circuit |
US15/478,635 US20170207770A1 (en) | 2005-01-19 | 2017-04-04 | Output Circuit for Semiconductor Device, Semiconductor Device Having Output Circuit, and Method of Adjusting Characteristics of Output Circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005011272A JP4159553B2 (ja) | 2005-01-19 | 2005-01-19 | 半導体装置の出力回路及びこれを備える半導体装置、並びに、出力回路の特性調整方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008104237A Division JP4618602B2 (ja) | 2008-04-14 | 2008-04-14 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
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JP2006203405A JP2006203405A (ja) | 2006-08-03 |
JP4159553B2 true JP4159553B2 (ja) | 2008-10-01 |
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JP2005011272A Expired - Fee Related JP4159553B2 (ja) | 2005-01-19 | 2005-01-19 | 半導体装置の出力回路及びこれを備える半導体装置、並びに、出力回路の特性調整方法 |
Country Status (3)
Country | Link |
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US (8) | US7215128B2 (ja) |
JP (1) | JP4159553B2 (ja) |
CN (1) | CN1808902B (ja) |
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US20150263727A1 (en) | 2015-09-17 |
US20110001511A1 (en) | 2011-01-06 |
US7808270B2 (en) | 2010-10-05 |
US20090146756A1 (en) | 2009-06-11 |
US20160359484A1 (en) | 2016-12-08 |
US8198911B2 (en) | 2012-06-12 |
US20070194798A1 (en) | 2007-08-23 |
US7495453B2 (en) | 2009-02-24 |
CN1808902B (zh) | 2011-05-04 |
JP2006203405A (ja) | 2006-08-03 |
US20120217992A1 (en) | 2012-08-30 |
US20060158198A1 (en) | 2006-07-20 |
US9047986B2 (en) | 2015-06-02 |
US20170207770A1 (en) | 2017-07-20 |
CN1808902A (zh) | 2006-07-26 |
US9391612B2 (en) | 2016-07-12 |
US9641175B2 (en) | 2017-05-02 |
US7215128B2 (en) | 2007-05-08 |
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