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ST M74HC109 Dual J-K Flip-Flop with Preset and Clear - Data Sheet/Manual

Summary

The M74HC109 is a high-speed CMOS Dual J-K Flip-Flop featuring built-in preset and clear functions, ideal for reliable digital circuit design. This component supports versatile operation across an extended voltage range of 2V to 6V. Developers can utilize this manual for comprehensive technical specifications, detailed electrical characteristics, timing parameters, and application guidelines, ensuring the precise integration of robust logic into embedded systems and general digital circuitry projects.

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M74HC109

DUAL J-K FLIP FLOP WITH PRESET AND CLEAR

HIGH SPEED : f MAX = 67MHz (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC =2µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.)

SYMMETRICAL OUTPUT IMPEDANCE: SOP TSSOPDIP

|IOH| = IOL = 4m A (MIN) BALANCED PROPAGATION DELAYS: t PLH ≅ t PHL ORDER CODES WIDE OPERATING VOLTAGE RANGE:

PACKAGE TUBE T & R

VCC (OPR) = 2V to 6V

DIP M74HC109B1R

PIN AND FUNCTION COMPATIBLE WITH

SOP M74HC109M1R M74HC109RM13TR

74 SERIES 109

TSSOP M74HC109TTR

DESCRIPTION

The M74HC109 is an high speed CMOS DUAL are independent of the clock and are J-K FLIP FLOP WITH PRESET AND CLEAR accomplished by a logic low on the corresponding fabricated with silicon gate C2MOS technology. In input. accordance with the logic level on the J and K All inputs are equipped with protection circuits input this device changes state on positive going against static discharge and transient excess transition of the clock pulse. CLEAR and PRESET voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/12July 2001

Page Summary Contents For ST M74HC109 Dual J-K Flip-Flop with Preset and Clear - Data Sheet/Manual

Page 1 M74HC109 DUAL J-K FLIP FLOP WITH PRESET AND CLEAR HIGH SPEED : f MAX = 67MHz (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC =2µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.) SYMM...
Page 2 M74HC109 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION Asynchronous Reset 1,15 1CLR, 2CLR Direct Input 1J, 2J, 1K, Synchronous Inputs; 2K Flip-Flops 1 and 2 4, 12...
Page 3 M74HC109 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCC Supply Voltage -0.5 to +7 VI DC Input Voltage -0.5 to VCC + 0.5 VO DC Output Voltage -0.5 to VCC + 0.5 IIK DC Input Diode Current ± 20...
Page 4 M74HC109 DC SPECIFICATIONS Test Condition Value Symbol Parameter TA = 25°C -40 to 85°C -55 to 125°C Unit VCC Min. Typ. Max. Min. Max. Min. Max. VIH High Level Input 2.0 1.5 1.5 1.5 Voltage VIL Low Lev...
Page 5 M74HC109 AC ELECTRICAL CHARACTERISTICS (CL = 50 p F, Input tr = tf = 6ns) Test Condition Value Symbol Parameter TA = 25°C -40 to 85°C -55 to 125°C Unit VCC Min. Typ. Max. Min. Max. Min. Max. t TLH t T...
Page 6 M74HC109 TEST CIRCUIT CL = 50p F or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM 1: PROPAGATION DELAY TIMES, SETUP AND HOLD TIMES, MINIMUM PULS...
Page 7 M74HC109 WAVEFORM 2 : PROPAGATION DELAY TIMES , MINIMUM PULSE WITDTH (CLR), (PR) (f=1MHz; 50% duty cycle) WAVEFORM 3 : MINIMUM REMOVAL TIME (CLR to CK) (f=1MHz; 50% duty cycle)
Page 8 M74HC109 WAVEFORM 4 : MINIMUM REMOVAL TIME (PR to CK) (f=1MHz; 50% duty cycle)
Page 9 M74HC109 Plastic DIP-16 (0.25) MECHANICAL DATA mm. inch MIN. TYP MAX. MIN. TYP. MAX.
Page 10 M74HC109 SO-16 MECHANICAL DATA mm. inch MIN. TYP MAX. MIN. TYP. MAX. c1 45° (typ.) 0.62 0.024 8° (max.) PO13H
Page 11 M74HC109 TSSOP16 MECHANICAL DATA mm. inch MIN. TYP MAX. MIN. TYP. MAX. 0.65 BSC 0.0256 BSC PIN 1 IDENTIFICATION
Page 12 M74HC109 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement o...

Manual Details

Brand CLEAR
Pages 12
File Size 187.58 KB
Published May 18, 2026
68 views

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Frequently Asked Questions

What is this device's typical maximum operating speed?

The device has a typical clock frequency (f) of 67MHz at V = 6V.

How are the asynchronous reset and set functions controlled?

Asynchronous Reset uses Pin 1/5, and Asynchronous Set uses Pin 2/11. Both are active low inputs.

What is the recommended range for the supply voltage (Vcc)?

The recommended operating condition specifies a Vcc between 2V and 6V.

Are there temperature limits for operation?

The recommended operating temperature range is from -55°C to 125°C.