SN74LS323 - Motorola

SN74LS323 8-BIT SHIFT/STORAGE REGISTER

The logic diagram and truth table indicate the functional characteristics of the SN54/74LS323 Universal Shift/Storage Register. This device is similar in operation to the SN54/74LS299 except for synchronous reset. A partial list of the common features are described below: 1. They use eight D-type edge-triggered flip-flops that respond only to the LOW-to-HIGH.

Features

are described below: 1. They use eight D-type edge-triggered flip-flops that respond only to the LOW-to-HIGH transition of the Clock (CP). The only timing restriction, therefore, is that the mode control (S0, S1) and data inputs (DS0, DS7, I/O0
  –I/O7) may be stable at least a setup time prior to the positive transition of the Clock Pulse. 2. When S0 = S1 = 1, I/O0
  –I/O7 are parallel inputs to flip-flops Q0
  –Q7 respectively, and the outputs of Q0
  –Q7 are in the high impedance state regardless of the state of OE1 or OE2. An important unique feature of the SN54/74LS323 is a fully Synchronous Reset t.