INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC06 74HC/HCT/HCU/HCMOS Logic Fami...
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/H
CMOS Logic Family Specifications The IC06 74HC/HCT/HCU/H
CMOS Logic Package Information The IC06 74HC/HCT/HCU/H
CMOS Logic Package Outlines
74HC/HCT40104 4-bit bidirectional universal shift register; 3-state
Product specification File under Integrated Circuits, IC06
December 1990
Philips Semiconductors
4-bit bidirectional universal shift register; 3-state
Product specification
74HC/HCT40104
FEATURES
Synchronous parallel or serial operating 3-state outputs Output capability: bus driver ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT40104 are high-speed Si-gate
CMOS devices and are pin compatible with the “40104” of the “4000B” series. They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT40104 are universal shift registers featuring parallel inputs, parallel outputs, shift-right and shift-left serial inputs and 3-state outputs allowing the devices to be used in bus-organized systems.
In the parallel-load mode (S0 and S1 are HIGH), data is loaded into the associated flip-flop and appears at the output after the positive transition of the clock input (CP).
During loading, serial data flow is inhibited. Shift-right and shift-left are accomplished synchronously on the positive clock edge with serial data entered at the shift-right (DSR) and shift-left (DSL) serial inputs, respectively.
Clearing the register is accomplished by setting both mo...