SN54S194
- Parallel Inputs and Outputs
- Four Operating Modes:
- Synchronous Parallel Load
- Right Shift
- Left Shift
- Do Nothing
- Positive Edge-Triggered Clocking
- Direct Overriding Clear
These bidirectional shift registers are designed to incorporate virtually all of the features a system designer may want in a shift register. The circuit contains 46 equivalent gates and features parallel inputs, parallel outputs, right-shift and left-shift serial inputs, operating-mode-control inputs, and a direct overriding clear line. The register has four distinct modes of operation, namely:
- Inhibit clock (do nothing)
- Shift right (in the direction QA toward QD)
- Shift left (in the direction QD toward QA)
- Parallel (broadside) load
Synchronous parallel loading is accomplished by applying the four bits of data and taking both mode control inputs, S0 and S1, high. The data are loaded into the associated flip-flops and appear at the outputs after the positive transition of the clock input. During loading, serial data flow is inhibited.
Shift right is accomplished synchronously with the rising edge of the clock pulse when S0 is high and S1 is low. Serial data for this mode is entered at the shift-right data input. When S0 is low and S1 is high, data shifts left synchronously and new data is entered at the shift-left serial input.
Clocking of the shift register is inhibited when both mode control inputs are low. The mode controls of the SN54194/SN74194 should be changed only while the clock input is high.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | 4-Bit Bidirectional Universal Shift Registers datasheet | 1988年 3月 1日 | |
* | SMD | SN54S194 SMD 7604001EA | 2016年 6月 21日 | |
Application note | Power-Up Behavior of Clocked Devices (Rev. B) | PDF | HTML | 2022年 12月 15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 | Designing With Logic (Rev. C) | 1997年 6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 |
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) | 16 | Ultra Librarian |
CFP (W) | 16 | 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