SN74HC112

ACTIVE

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

Product details

Number of channels 2 Technology family HC Input type LVTTL/CMOS Output type Push-Pull Clock frequency (MHz) 24 Supply current (max) (µA) 40 IOL (max) (mA) 4 IOH (max) (mA) -4 Features Balanced outputs, Clear, High speed (tpd 10-50ns), Negative edge triggered, Positive input clamp diode, Preset Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 2 Technology family HC Input type LVTTL/CMOS Output type Push-Pull Clock frequency (MHz) 24 Supply current (max) (µA) 40 IOL (max) (mA) 4 IOH (max) (mA) -4 Features Balanced outputs, Clear, High speed (tpd 10-50ns), Negative edge triggered, Positive input clamp diode, Preset Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (D) 16 59.4 mm² (9.9 mm × 6 mm) PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm)
  • Wide operating voltage range of 2V to 6V
  • Outputs can drive up to 10 LSTTL loads
  • Low power consumption, 40µA max ICC
  • Typical tpd = 13ns
  • ±4mA output drive at 5V
  • Low input current of 1µA max
  • Wide operating voltage range of 2V to 6V
  • Outputs can drive up to 10 LSTTL loads
  • Low power consumption, 40µA max ICC
  • Typical tpd = 13ns
  • ±4mA output drive at 5V
  • Low input current of 1µA max

The SNx4HC112 devices contain two independent J-K negative-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR 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 (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the fall time of the CLK 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 perform as toggle flip-flops by tying J and K high.

The SNx4HC112 devices contain two independent J-K negative-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR 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 (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the fall time of the CLK 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 perform as toggle flip-flops by tying J and K high.

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* Data sheet SNx4HC112 Dual J-K Negative-Edge-Triggered Flip-Flops With Clear and Preset datasheet (Rev. I) PDF | HTML Sep 16, 2024
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML Dec 15, 2022
Application note HCMOS Design Considerations (Rev. A) Sep 9, 2002

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