ST Micro T74LS374B1 Octal D-Type Transparent Latch DIL20

Manufactured by ST Microlectronics - Part # T74LS374B1 - DIL20 Through Hole Package

• Choice of Eight Latches or Eight D-Type Flip-Flops in a Single Package
• 3-State Bus-Driving Outputs
• Full Parallel Access for Loading
• Buffered Control Inputs Clock-Enable Input Has Hysteresis to Improve Noise Rejection (’S373 and ’S374)
• P-N-P Inputs Reduce DC Loading on Data Lines

Description

These 8-bit registers feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The high-impedance 3-state and increased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pullup components. These devices are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight flip-flops of the ’LS374 and ’S374 are edge-triggered D-type flip-flops. On the positive transition of the clock, the Q outputs are set to the logic states that were set up at the D inputs.