SN74F109N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

Name: SN74F109N
Brand: Texas Instruments
SKU: SN74F109N
Availability: InStock

SN74F109N is a dual J-K positive-edge-triggered flip-flop IC with clear and preset. Features 90 MHz max frequency, 50 pF load capacitance, and 20 mA output current. From $0.13, in stock worldwide shipping.

ACTIVEIntegrated CircuitVerified Apr 2026

Package / Visual Reference

SN74F109NDual-In-Line Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Dual-In-Line Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: SN74F109N Datasheet PDF
Category: Integrated Circuit
Price: From $0.1320(MOQ 50)
Temp Range: ?°C to 70.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of SN74F109N?

Dual J-K positive-edge-triggered flip-flop with independent clear and preset inputs
High-speed F/FAST logic family with 90 MHz maximum operating frequency
TTL-compatible 16-pin DIP package with 50 pF load capacitance support
20 mA output sink current for driving standard TTL loads
Pb-free (e4) compliant, suitable for RoHS applications

What is SN74F109N used for?

The SN74F109N is widely used in digital logic design for state machines, counters, and frequency dividers where reliable edge-triggered operation is essential. It is suitable for data synchronization and pipeline registers in microprocessor-based systems, industrial controllers, and communication equipment. Its high-speed F/FAST family characteristics make it ideal for timing-critical applications requiring fast propagation delays.

What are the specifications of SN74F109N?

Pbfree Code	Yes
YTEOL	15
Family	F/FAST
JESD-30 Code	R-PDIP-T16
JESD-609 Code	e4
Load Capacitance (CL)	50pF
Logic IC Type	J-KBAR FLIP-FLOP
Max Frequency@Nom-Sup	90000000Hz
Max I(ol)	0.02A
Number of Bits	2
Number of Functions	2
Output Polarity	COMPLEMENTARY
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	DIP16,.3
Package Shape	RECTANGULAR
Package Style	IN-LINE
Packing Method	TUBE
Power Supply Current-Max (ICC)	19mA
Prop. Delay@Nom-Sup	9.2ns
Propagation Delay (tpd)	9.2ns
Qualification Status	Not Qualified
Schmitt Trigger	NO
Supply Voltage-Max (Vsup)	5.5V
Supply Voltage-Min (Vsup)	4.5V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	NO
Technology	TTL
Temperature Grade	COMMERCIAL
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	DUAL
Trigger Type	POSITIVE EDGE
fmax-Min	100MHz
Package	Dual-In-Line Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.90
Country of Origin	Malaysia, Mexico

Where can I find the SN74F109N datasheet?

SN74F109N Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for SN74F109N?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What is the maximum operating frequency of the SN74F109N?

The SN74F109N supports a maximum operating frequency of 90 MHz (90,000,000 Hz), making it suitable for high-speed digital logic applications. This is achieved with a 50 pF load capacitance and standard TTL supply voltage of 5V.

What are the typical applications for the SN74F109N?

The SN74F109N is commonly used in state machines, counters, frequency dividers, data registers, and pipeline stages. Its dual J-K flip-flop design with clear and preset inputs makes it ideal for digital control systems, microprocessor interfaces, and communication equipment requiring reliable edge-triggered clocking.

What package type does the SN74F109N come in?

The SN74F109N is available in a 16-pin Dual-In-Line Package (DIP), designated as R-PDIP-T16 per JESD-30 standard. This through-hole package is suitable for prototyping, industrial, and legacy board designs requiring easy manual soldering.

Is the SN74F109N RoHS compliant?

Yes, the SN74F109N is Pb-free and carries JESD-609 code e4, indicating it meets RoHS lead-free requirements. It is suitable for environmentally compliant designs and modern manufacturing processes.

What is the output current specification of the SN74F109N?

The SN74F109N has a maximum output low current (I_OL) of 20 mA (0.02 A), allowing it to drive standard TTL and CMOS logic loads directly. This ensures reliable signal integrity in multi-load bus configurations.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

View all Texas Instruments parts →

More from Texas Instruments

SN74HC138PWT

Small Outline Packages

Integrated Circuit

MCP6292IDGKT

Small Outline Packages

Integrated Circuit

CD4511BMN

Dual-In-Line Packages

Integrated Circuit

UCC2803DG4

Small Outline Packages

Integrated Circuit

MC33078DRE4

Small Outline Packages

Integrated Circuit

TLV6710DDCT

SOT23 (6-Pin)

Integrated Circuit

AvailabilityIn Stock

Reference Price (USD)

From $0.1320

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
50+	$0.2681	$13.41
188+	$0.1547	$29.08
648+	$0.1320	$85.54

pcs

Unit price: $0.2681 · Total: $13.41

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy

SN74F109N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

What are the key features of SN74F109N?

What is SN74F109N used for?

What are the specifications of SN74F109N?

Compliance & Regulatory

Where can I find the SN74F109N datasheet?

What are equivalent replacements for SN74F109N?

Frequently Asked Questions

What is the maximum operating frequency of the SN74F109N?

What are the typical applications for the SN74F109N?

What package type does the SN74F109N come in?

Is the SN74F109N RoHS compliant?

What is the output current specification of the SN74F109N?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

You May Also Like