The 'LS597 comes in a 16-pin package and consists of an 8-bit storage latch feeding a parallel-in, serial-out 8-bit shift register. Both the storage register and shift register have positive-edge triggered clocks. The shift register also has direct load (from storage) and clear inputs.

The 'LS598 comes in a 20-pin package and has all the features of the 'LS597 plus 3-state I/O ports that provide parallel shift register outputs and also has multiplexed serial data inputs.

• 8-Bit Parallel Storage Register Inputs ('LS597)
• Parallel 3-State I/O, Storage Register Inputs, Shift Register Outputs ('LS598)
• Shift Register has Direct Overriding Load and Clear
• Accurate Shift-Frequency … DC to 20 MHz

• Configuration
• Parallel-in, Serial-out
• Bits (#)
• 8
• 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)
• 53000
• Features
• High speed (tpd 10-50ns)

SN74LS597的完整型号有：SN74LS597D、SN74LS597N，以下是这些产品的关键参数及官网采购报价：

SN74LS597D，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SN74LS597D的批量USD价格：5.8（1000+）

SN74LS597N，工作温度：0 to 70，封装：PDIP (N)-16，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网SN74LS597N的批量USD价格：6.67（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。