4x4 Shift Register Files with 3-State Outputs DIP-16 Specifications Series: 74LS Logic Type: Register File Output Type: Tri-State Number of Elements: 4 Number of Bits per Element: 4 Function: Universal Voltage - Supply: 4.75 V to 5.25 V Operating Temperature: 0C to 70C Mounting Type: Through Hole Package: 16-DIP (0.300", 7.62mm) Base Number: 74LS670