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RS74HC74XP

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Jiangsu RUNIC Tech Flip Flops, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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RS74HC74XP

Jiangsu RUNIC Tech · Flip Flops · SOIC-14

RS74HC74XP from Jiangsu RUNIC Tech, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1R̅D input Asynchronous reset-direct input (active LOW) that forces 1Q LOW and 1Q̅ HIGH when asserted with 1S̅D HIGH.
2 1D input Data input that is stored in the flip-flop on the LOW-to-HIGH transition of 1CP when set-up and hold times are met.
3 1CP input Clock input; the data at 1D is captured on its LOW-to-HIGH transition.
4 1S̅D input Asynchronous set-direct input (active LOW) that forces 1Q HIGH and 1Q̅ LOW when asserted with 1R̅D HIGH.
5 1Q output True flip-flop output that follows the stored data state of the first flip-flop.
6 1Q̅ output Complement flip-flop output, the logic inverse of 1Q.
7 GND power_in Ground reference for the device.
8 2Q̅ output Complement flip-flop output, the logic inverse of 2Q.
9 2Q output True flip-flop output that follows the stored data state of the second flip-flop.
10 2S̅D input Asynchronous set-direct input (active LOW) that forces 2Q HIGH and 2Q̅ LOW when asserted with 2R̅D HIGH.
11 2CP input Clock input; the data at 2D is captured on its LOW-to-HIGH transition.
12 2D input Data input that is stored in the flip-flop on the LOW-to-HIGH transition of 2CP when set-up and hold times are met.
13 2R̅D input Asynchronous reset-direct input (active LOW) that forces 2Q LOW and 2Q̅ HIGH when asserted with 2S̅D HIGH.
14 VCC power_in Supply pin; the operating supply voltage range is 1.65V to 5.5V.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOIC-14
Category Logic ICs
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage range VCC -0.5 6.5 V 6
Input voltage range VI -0.5 6.5 V 6
Voltage range applied to any output in the high-impedance or power-off state Vo -0.5 6.5 V 6
Input clamp current IIK -50 mA VI<0 6
Output clamp current IOK -50 mA VO<0 6
Continuous output current IO -50 50 mA 6
Continuous current through VCC or GND -100 100 mA 6
Junction temperature TJ -65 150 °C 6
Storage temperature Tstg -65 150 °C 6
Supply voltage range VCC 1.65 5.5 V Operating 7
High-level input voltage VIH 1.7 V VCC=2.3V to 2.7V 7
High-level input voltage VIH 2 V VCC=3V to 3.6V 7
Low-level input voltage VIL 0.7 V VCC=2.3V to 2.7V 7
Low-level input voltage VIL 0.8 V VCC=3V to 3.6V 7
Input voltage VI 0 5.5 V 7
High-level output current IOH -4 mA VCC=1.65V 7
High-level output current IOH -8 mA VCC=2.3V 7
High-level output current IOH -16 mA VCC=3V 7
High-level output current IOH -24 mA VCC=3V 7
High-level output current IOH -32 mA VCC=4.5V 7
Low-level output current IOL 4 mA VCC=1.65V 7
Low-level output current IOL 8 mA VCC=2.3V 7
Low-level output current IOL 16 mA VCC=3V 7
Low-level output current IOL 24 mA VCC=3V 7
Low-level output current IOL 32 mA VCC=4.5V 7
Input transition rise or fall rate Δt/Δv 20 ns/V VCC=1.8V±0.15V, 2.5V±0.2V 7
Input transition rise or fall rate Δt/Δv 10 ns/V VCC=3.3V±0.3V 7
Operating temperature TA -40 125 °C 7
Package thermal impedance SOIC-14(SOP14) θJA 105 °C/W SOIC-14(SOP14), calculated per JESD-51 6
High-level output voltage VOH 1.2 V IOH = -4mA, 1.65V 8
High-level output voltage VOH 1.9 V IOH = -8mA, 2.3V 8
High-level output voltage VOH 2.4 V IOH = -16mA, 3V 8
High-level output voltage VOH 2.3 V IOH = -24mA, 3V 8
High-level output voltage VOH 3.8 V IOH = -32mA, 4.5V 8
Low-level output voltage VOL 0.1 V IOL = 100μA, 1.65V to 5.5V, Full 8
Low-level output voltage VOL 0.45 V IOL = 4mA, 1.65V 8
Low-level output voltage VOL 0.3 V IOL = 8mA, 2.3V 8
Low-level output voltage VOL 0.4 V IOL = 16mA, 3V 8
Low-level output voltage VOL 0.55 V IOL = 24mA, 3V 8
Input leakage current II -1 0.1 1 µA All inputs VI=5.5V or GND, 0V to 5.5V, +25C 8
Input leakage current II -5 5 µA All inputs VI=5.5V or GND, 0V to 5.5V, Full 8
Power-off leakage current Ioff -1 0.1 1 µA VI or VO=5.5V, VCC=0, +25C 8
Power-off leakage current Ioff -10 10 µA VI or VO=5.5V, VCC=0, Full 8
Quiescent supply current ICC 0.1 1 µA VI=5.5V or GND, IO=0, 1.65V to 5.5V, +25C 8
Quiescent supply current ICC 10 µA VI=5.5V or GND, IO=0, 1.65V to 5.5V, Full 8
Additional quiescent supply current ΔICC 500 µA One input at VCC-0.6V, other inputs at VCC or GND, 3V to 5.5V, Full 8
Maximum clock frequency fmax 30 MHz -40°C to 85°C, VCC=1.8V 9
Maximum clock frequency fmax 65 MHz -40°C to 85°C, VCC=2.5V 9
Maximum clock frequency fmax 100 MHz -40°C to 85°C, VCC=3.3V 9
Maximum clock frequency fmax 155 MHz -40°C to 85°C, VCC=5V 9
Propagation delay nCP to nQ tpd 4.8 23.5 ns -40°C to 85°C, VCC=1.8V 9
Propagation delay nCP to nQ tpd 2.2 15.5 ns -40°C to 85°C, VCC=2.5V 9
Propagation delay nCP to nQ tpd 2.2 11.5 ns -40°C to 85°C, VCC=3.3V 9
Propagation delay nCP to nQ tpd 1.4 9.2 ns -40°C to 85°C, VCC=5V 9
Propagation delay nSD or nRD to nQ or nQ̅ tpd 4.4 27 ns -40°C to 85°C, VCC=1.8V 9
Propagation delay nSD or nRD to nQ or nQ̅ tpd 2.3 16 ns -40°C to 85°C, VCC=2.5V 9
Propagation delay nSD or nRD to nQ or nQ̅ tpd 1.7 12 ns -40°C to 85°C, VCC=3.3V 9
Propagation delay nSD or nRD to nQ or nQ̅ tpd 1.6 9.4 ns -40°C to 85°C, VCC=5V 9

CAD (KiCad official)

  • Symbol: RS74HC74XP
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: rs74hc74xp-etched.step / rs74hc74xp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs74hc74xp.step / rs74hc74xp.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Jiangsu RUNIC Tech datasheet (15 pp, sha256 fff9f54fcb3a091d, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF