SN74LS91 8-Bit Shift Registers DIP-14

Description:

These monolithic serial-in, serial-out, 8-bit shift registers utilize transistor-transistor logic (TTL) circuits and are composed of eight R-S master-slave flip-flops, input gating, and a clock driver. Single-rail data and input control are gated through inputs A and B and an internal inverter to form the complementary inputs to the first bit of the shift register. Drive for the internal common clock line is provided by an inverting clock driver. This clock pulse inverter/driver causes these circuits to shift information one bit on the positive edge of an input clock pulse.

For applications in:

• Digital Computer Systems
• Data-Handling Systems
• Control Systems

Schematics of inputs and outputs

Parameters

• Technology family: LS
• Supply voltage (min) (V): 4.75V
• Supply voltage (max) (V): 5.25V
• High-level output current, I(OH): -400uA
• Low-level output current, I(OL): 8mA
• Operating temperature range: 0 to 70°C
• Typical Maximum Clock Frequency: 18MHz
• Typical Dissipation: 80mW

SN74LS91 Datasheet