- 制造厂商：TI
- 产品类别：逻辑和电压转换
- 技术类目：触发器、锁存器和寄存器 - 移位寄存器
- 功能描述：4 位双向通用移位寄存器
- 点击这里打开及下载SN74AS194的技术文档资料
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These 4-bit bidirectional universal shift registers feature parallel outputs, right-shift and left-shift serial (SR SER, SL SER) inputs, operating-mode-control (S0, S1) inputs, and a direct overriding clear (CLR\) line. The registers have four distinct modes of operation:
- Inhibit clock (temporary data latch/do nothing)
- Shift right (in the direction QA toward QD)
- Shift left (in the direction QD toward QA)
- Parallel (broadside) load
Parallel synchronous loading is accomplished by applying the four bits of data and taking both S0 and S1 high. The data is loaded into the associated flip-flops and appears at the outputs after the positive transition of the clock (CLK) 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 inputs. Clocking of the flip-flop is inhibited when both mode-control inputs are low.
The SN54AS194 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AS194 is characterized for operation from 0°C to 70°C.
- Parallel-to-Serial, Serial-to-Parallel Conversions
- Left or Right Shifts
- Parallel Synchronous Loading
- Direct Overriding Clear
- Temporary Data-Latching Capability
- Package Options Include Plastic Small-Outline Packages (D), Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
- Configuration
- Universal
- Bits (#)
- 4
- Technology Family
- AS
- Supply voltage (Min) (V)
- 4.5
- Supply voltage (Max) (V)
- 5.5
- Input type
- Bipolar
- Output type
- Push-Pull
- Clock Frequency (MHz)
- 80
- IOL (Max) (mA)
- 20
- IOH (Max) (mA)
- -2
- ICC (Max) (uA)
- 53000
- Features
- Very high speed (tpd 5-10ns)
SN74AS194的完整型号有：SN74AS194D、SN74AS194DR，以下是这些产品的关键参数及官网采购报价：
SN74AS194D，工作温度：0 to 70，封装：SOIC (D)-16，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AS194D的批量USD价格：2.087（1000+）
SN74AS194DR，工作温度：0 to 70，封装：SOIC (D)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AS194DR的批量USD价格：1.739（1000+）
14-24-LOGIC-EVM — 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM
该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。
