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SN74S112A

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

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Data sheet

SN74S112A

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Technology family S Input type TTL Output type Push-Pull Clock frequency (MHz) 125 Supply current (max) (µA) 25000 IOL (max) (mA) 20 IOH (max) (mA) -1 Features Clear, High speed (tpd 10-50ns), Negative edge triggered, Preset Operating temperature range (°C) 0 to 70 Rating Catalog
Number of channels 2 Technology family S Input type TTL Output type Push-Pull Clock frequency (MHz) 125 Supply current (max) (µA) 25000 IOL (max) (mA) 20 IOH (max) (mA) -1 Features Clear, High speed (tpd 10-50ns), Negative edge triggered, Preset Operating temperature range (°C) 0 to 70 Rating Catalog
PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm)
  • Fully Buffered to Offer Maximum Isolation from External Disturbance
  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 
  • Fully Buffered to Offer Maximum Isolation from External Disturbance
  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 

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.

 
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* Data sheet Dual J-K Negative-Edge-Triggered Flip-Flops With Preset And Clear datasheet Mar 1, 1988

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