SN54LS673, SN74LS673

The 'LS673 is a 16-bit shift register and a 16-bit storage register in a single 24-pin package. A three-state input/output (SER/Q15) port to the shift register allows serial entry and/or reading of data. The storage register is connected in a parallel data loop with the shift register and may be asynchronously cleared by taking the store-clear input low. The storage register may be parallel loaded with shift-register data to provide shift-register status via the parallel outputs. The shift register can be parallel loaded with the storage-register data upon commmand.

A high logic level at the chip-level (CS\) input disables both the shift-register clock and the storage register clock and places SER/Q15 in the high-impedance state. The store-clear function is not disabled by the chip select.

Caution must be exercised to prevent false clocking of either the shift register or the storage register via the chip-select input. The shift clock should be low during the low-to-high transition of chip select and the store clock should be low during the high-to-low transition of chip select.

SN54LS674, SN74LS674

The 'LS674 is a 16-bit parallel-in, serial-out shift register. A three-state input/output (SER/Q15) port provides access for entering a serial data or reading the shift-register word in a recirculating loop.

The device has four basic modes of operation:

1. Hold (do nothing)
2. Write (serially via input/output)
3. Read (serially)
4. Load (parallel via data inputs)

Low-to-high-level changes at the chip select input should be made only when the clock input is low to prevent false clocking.

• 'LS673
  • 16-Bit Serial-In, Serial-Out Shift Register with 16-Bit Parallel-Out Storage Register
  • Performs Serial-to-Parallel Conversion
• 'LS674
  • 16-Bit Parallel-In, Serial-Out Shift Register
  • Performs Parallel-to-Serial Conversion

• Configuration
• Serial-in, Parallel-out
• Bits (#)
• 16
• Technology Family
• LS
• Supply voltage (Min) (V)
• 4.75
• Supply voltage (Max) (V)
• 5.25
• Input type
• Bipolar
• Output type
• Push-Pull
• Clock Frequency (MHz)
• 25
• IOL (Max) (mA)
• 24
• IOH (Max) (mA)
• -2.6
• ICC (Max) (uA)
• 80000
• Features
• High speed (tpd 10-50ns)

SN54LS673的完整型号有：5962-88602013A、5962-8860201JA、5962-8860201LA、SN54LS673J、SNJ54LS673FK、SNJ54LS673J、SNJ54LS673JT，以下是这些产品的关键参数及官网采购报价：

5962-88602013A，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-88602013A的批量USD价格：64.578（1000+）

5962-8860201JA，工作温度：-55 to 125，封装：CDIP (J)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：Call TI，TI官网5962-8860201JA的批量USD价格：39.816（1000+）

5962-8860201LA，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-8860201LA的批量USD价格：31.442（1000+）

SN54LS673J，工作温度：-55 to 125，封装：CDIP (J)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：Call TI，TI官网SN54LS673J的批量USD价格：32.908（1000+）

SNJ54LS673FK，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54LS673FK的批量USD价格：64.578（1000+）

SNJ54LS673J，工作温度：-55 to 125，封装：CDIP (J)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：Call TI，TI官网SNJ54LS673J的批量USD价格：39.816（1000+）

SNJ54LS673JT，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54LS673JT的批量USD价格：31.442（1000+）