S-R Logic Latches

Logic - Latches -- 1727-1771-ND
from Digi-Key Electronics


  • Latch Type: S-R
  • Supply Voltage: 3V ~ 15V
  • Output Characteristics: 3-State
  • Low-level Output Current (Sink): 3
Quad R/S latch with 3-state outputs -- HEF4043BT,652
from Nexperia

The HEF4043B is a quad R/S latch with 3-state outputs with a common output enable input (OE). Each latch has an active HIGH set input (1S to 4S), an active HIGH reset input (1R to 4R) and an active HIGH 3-state output (1Q to 4Q). When OE is HIGH, the latch output (nQ) is determined by the nR and nS... [See More]

  • Latch Type: S-R
  • Supply Voltage: 5V; 4.5 - 15
  • Output Characteristics: 3-State
  • Propagation Delay: 25
1450079 [SN74LS279AN from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

Texas Instruments range of Flip-Flops and Latches from the 74LS Family of Low Power Schottky Logic ICs. The 74LS Family use bipolar junction technology coupled with Schottky diode clamps to achieve operating speeds equal to the original 74TTL family but with much lower power consumption. Logic... [See More]

  • Latch Type: S-R; Transparent-D
  • Logic Family: TTL
  • Package Type: PDIP
  • Number of Pins: 16
Quad S-R Latch -- 54279/E,F
from Lansdale Semiconductor, Inc.

The 5400/7400 series of transistor-transistor logic is a medium-speed, high-noise-immunity family of saturating integrated logic circuits designed for general digital logic applications requiring clock frequencies to 30MHz and switching speeds in the 12-15 ns range under moderate capacitive loading. [See More]

  • Latch Type: S-R
  • Operating Temperature: -55 to 125
  • Supply Voltage: 7 VDC
  • Package Type: DIP (optional feature); Lead Flat Pack