SN54AS640
- Bidirectional Bus Transceivers in High-Density 20-Pin Packages
- Inverting Logic
- Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
These octal bus transceivers are designed for asynchronous two-way
communication between data buses. These devices transmit data from
the A bus to the B bus or from the B bus to the A bus, depending upon
the level at the direction-control (DIR) input. The output-enable
(
) input can be
used to disable the device so that the buses are effectively
isolated.
The -1 version of the SN74ALS640B is identical to the standard version, except that the recommended maximum IOL for the -1 version is increased to 48 mA. There is no -1 version of the SN54ALS640B.
The SN54ALS640B and SN54AS640 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS640B and SN74AS640 are characterized for operation from 0°C to 70°C.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Octal Bus Transceivers With 3-State Outputs datasheet (Rev. A) | 1995年 1月 1日 | |
| * | SMD | SN54AS640 SMD 5962-89553 | 2016年 6月 21日 | |
| Selection guide | Logic Guide (Rev. AB) | 2017年 6月 12日 | ||
| Application note | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 2015年 12月 2日 | ||
| User guide | LOGIC Pocket Data Book (Rev. B) | 2007年 1月 16日 | ||
| Application note | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 2004年 7月 8日 | ||
| Application note | TI IBIS File Creation, Validation, and Distribution Processes | 2002年 8月 29日 | ||
| Application note | Designing With Logic (Rev. C) | 1997年 6月 1日 | ||
| Application note | Advanced Schottky Load Management | 1997年 2月 1日 | ||
| Application note | Input and Output Characteristics of Digital Integrated Circuits | 1996年 10月 1日 | ||
| Application note | Live Insertion | 1996年 10月 1日 | ||
| Application note | Advanced Schottky (ALS and AS) Logic Families | 1995年 8月 1日 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| CDIP (J) | 20 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點