74LS112 Series

Dual J-K Negative-Edge-Triggered Flip-Flops With Clear And Preset

Catalog(4 parts)

Part	Type	Package / Case	Package / Case▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Max Propagation Delay @ V, Max CL▲▼	Function	Number of Elements▲▼	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Trigger Type	Clock Frequency▲▼	Number of Bits per Element▲▼	Mounting Type	Supplier Device Package	Output Type	Operating Temperature▲▼	Current - Quiescent (Iq)▲▼
Texas Instruments SN74LS112ADR Flip Flop 2 Element JK Type 1 Bit Negative Edge 16-SOIC (0.154", 3.90mm Width)	JK Type	16-SOIC	0.003911599982529879 m, 3.900000095367432 ul	4.75 V	5.25 V	1.999999987845058e-8 s	Reset, Set(Preset)	2 ul	0.00800000037997961 A	0.00039999998989515007 A	Negative Edge	45000000 Hz	1 ul	Surface Mount	16-SOIC	Complementary	70 °C	0.006000000052154064 A
Texas Instruments SN74LS112ADRE4 Flip Flop 2 Element JK Type 1 Bit Negative Edge 16-SOIC (0.154", 3.90mm Width)	JK Type	16-SOIC	0.003911599982529879 m, 3.900000095367432 ul	4.75 V	5.25 V	1.999999987845058e-8 s	Reset, Set(Preset)	2 ul	0.00800000037997961 A	0.00039999998989515007 A	Negative Edge	45000000 Hz	1 ul	Surface Mount	16-SOIC	Complementary	70 °C	0.006000000052154064 A
Texas Instruments SN74LS112ANSR Flip Flop 2 Element JK Type 1 Bit Negative Edge 16-SOIC (0.209", 5.30mm Width)	JK Type	16-SOIC (0.209", 5.30mm Width)		4.75 V	5.25 V	1.999999987845058e-8 s	Reset, Set(Preset)	2 ul	0.00800000037997961 A	0.00039999998989515007 A	Negative Edge	45000000 Hz	1 ul	Surface Mount	16-SO	Complementary	70 °C	0.006000000052154064 A
Texas Instruments SN74LS112AN Flip Flop 2 Element JK Type 1 Bit Negative Edge 16-DIP (0.300", 7.62mm)	JK Type	16-DIP	0.007619999814778566 m, 0.007619999814778566 m	4.75 V	5.25 V	1.999999987845058e-8 s	Reset, Set(Preset)	2 ul	0.00800000037997961 A	0.00039999998989515007 A	Negative Edge	45000000 Hz	1 ul	Through Hole	16-PDIP	Complementary	70 °C	0.006000000052154064 A

Key Features

• Fully Buffered to Offer Maximum Isolation from External DisturbancePackage Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPsDependable Texas Instruments Quality and ReliabilityFully Buffered to Offer Maximum Isolation from External DisturbancePackage 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 J-K negative-edge-triggered flip-flops. A low level at the preset and 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 J and K inputs meeting the setup time requirements are transferred to the outputs on the negative-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 J and K inputs may be changed without affecting the levels at the outputs. These versatile flip-flops can perform as toggle flip-flops by tying J and K high. The SN54LS112A and SN54S112 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS112A and SN74S112A are characterized for operation from 0°C to 70°C. These devices contain two independent J-K negative-edge-triggered flip-flops. A low level at the preset and 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 J and K inputs meeting the setup time requirements are transferred to the outputs on the negative-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 J and K inputs may be changed without affecting the levels at the outputs. These versatile flip-flops can perform as toggle flip-flops by tying J and K high. The SN54LS112A and SN54S112 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS112A and SN74S112A are characterized for operation from 0°C to 70°C.