74LS74 Series

Dual D-type pos.-edge-triggered flip-flops with preset and clear

Catalog(4 parts)

Part	Output Type	Number of Bits per Element▲▼	Trigger Type	Package / Case▲▼	Package / Case▲▼	Package / Case	Function	Type	Mounting Type	Operating Temperature▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Clock Frequency▲▼	Max Propagation Delay @ V, Max CL▲▼	Current - Quiescent (Iq)▲▼	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Supplier Device Package	Number of Elements▲▼	Package / Case▲▼	Package / Case▲▼	Package / Case▲▼
Texas Instruments SN74LS74ANSR Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.209", 5.30mm Width)	Complementary	1 ul	Positive Edge	0.0052999998442828655 m	0.005308600142598152 m	14-SOIC	Reset, Set(Preset)	D-Type	Surface Mount	70 °C	4.75 V	5.25 V	33000000 Hz	3.999999975690116e-8 s	0.00800000037997961 A	0.00800000037997961 A	0.00039999998989515007 A	14-SO	2 ul
Texas Instruments SN74LS74ANSRG4 Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.209", 5.30mm Width)	Complementary	1 ul	Positive Edge	0.0052999998442828655 m	0.005308600142598152 m	14-SOIC	Reset, Set(Preset)	D-Type	Surface Mount	70 °C	4.75 V	5.25 V	33000000 Hz	3.999999975690116e-8 s	0.00800000037997961 A	0.00800000037997961 A	0.00039999998989515007 A	14-SO	2 ul
Texas Instruments SN74LS74ADBR Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SSOP (0.209", 5.30mm Width)	Complementary	1 ul	Positive Edge			14-SSOP	Reset, Set(Preset)	D-Type	Surface Mount	70 °C	4.75 V	5.25 V	33000000 Hz	3.999999975690116e-8 s	0.00800000037997961 A	0.00800000037997961 A	0.00039999998989515007 A	14-SSOP	2 ul	0.005308600142598152 m	0.0052999998442828655 m
Texas Instruments SN74LS74ADG4 Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)	Complementary	1 ul	Positive Edge			14-SOIC	Reset, Set(Preset)	D-Type	Surface Mount	70 °C	4.75 V	5.25 V	33000000 Hz	3.999999975690116e-8 s	0.00800000037997961 A	0.00800000037997961 A	0.00039999998989515007 A		2 ul		0.003911599982529879 m	0.003899999894201755 m

Key Features

• Package Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPsDependable Texas Instruments Quality and ReliabilityPackage Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPsDependable Texas Instruments Quality and Reliability

Description

These devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the D input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the D input may be changed without affecting the levels at the outputs. The SN54' family is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74' family is characterized for operation from 0°C to 70°C. These devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the D input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the D input may be changed without affecting the levels at the outputs. The SN54' family is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74' family is characterized for operation from 0°C to 70°C.