SNJ54F109J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock

Name: SNJ54F109J
Brand: Texas Instruments
SKU: SNJ54F109J
Availability: InStock

The SNJ54F109J is a dual J-K positive-edge-triggered flip-flop with asynchronous clear and preset from Texas Instruments, based on the F/FAST bipolar logic family. It operates up to 70 MHz clock frequency with 1 mA output current and supports two independent state storage elements. Housed in a 16-pin ceramic DIP package, it is qualified for military applications from -55°C to 125°C.

ACTIVEIntegrated CircuitVerified May 2026

Package / Visual Reference

SNJ54F109JCeramic Dual-In-Line Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Ceramic Dual-In-Line Packages
Pin Count: 14
Lifecycle: ACTIVE
Datasheet: SNJ54F109J Datasheet PDF
Category: Integrated Circuit
Price: From $9.5868(MOQ 1)
Temp Range: -55.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of SNJ54F109J?

Dual J-K positive-edge-triggered flip-flops with independent clear and preset inputs
F/FAST bipolar logic family: high-speed operation up to 70 MHz
Asynchronous clear (CLR) and preset (PRE) for direct state control
Military-grade ceramic 16-pin DIP package rated -55°C to 125°C
1 mA output drive current per flip-flop channel

What is SNJ54F109J used for?

The SNJ54F109J is used in military digital systems for state machine design, frequency division, and synchronous sequential logic. Its dual J-K architecture with asynchronous clear and preset makes it suitable for counter design, register initialization circuits, and data synchronization logic in high-reliability defense and aerospace electronics.

What are the specifications of SNJ54F109J?

Pbfree Code	Yes
YTEOL	15
Family	F/FAST
JESD-30 Code	R-GDIP-T16
JESD-609 Code	e0
Load Capacitance (CL)	50pF
Logic IC Type	J-KBAR FLIP-FLOP
Max Frequency@Nom-Sup	70000000Hz
Max I(ol)	0.001A
Number of Bits	2
Number of Functions	2
Output Polarity	COMPLEMENTARY
Package Body Material	CERAMIC, GLASS-SEALED
Package Equivalence Code	DIP16,.3
Package Shape	RECTANGULAR
Package Style	IN-LINE
Packing Method	TUBE
Power Supply Current-Max (ICC)	17mA
Prop. Delay@Nom-Sup	10.5ns
Propagation Delay (tpd)	10.5ns
Qualification Status	Not Qualified
Screening Level	MIL-PRF-38535
Supply Voltage-Max (Vsup)	5.5V
Supply Voltage-Min (Vsup)	4.5V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	NO
Technology	TTL
Temperature Grade	MILITARY
Terminal Finish	Tin/Lead (Sn/Pb)
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	DUAL
Trigger Type	POSITIVE EDGE
fmax-Min	70MHz
Package	Ceramic Dual-In-Line Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.90

Where can I find the SNJ54F109J datasheet?

SNJ54F109J Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for SNJ54F109J?

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

Frequently Asked Questions

What triggers the SNJ54F109J flip-flop?

The SNJ54F109J is a positive-edge-triggered flip-flop, meaning its output state changes on the rising edge of the clock signal. It also supports asynchronous clear and preset inputs for immediate state initialization regardless of the clock.

What is the maximum clock frequency of the SNJ54F109J?

The SNJ54F109J supports a maximum clock frequency of 70 MHz, enabled by its F/FAST bipolar logic family architecture, making it suitable for high-speed sequential logic and frequency division applications.

What temperature range does the SNJ54F109J operate over?

The SNJ54F109J is rated for operation from -55°C to 125°C, meeting full military temperature grade specifications for use in avionics, defense communications, and harsh-environment industrial systems.

What package does the SNJ54F109J come in?

The SNJ54F109J is housed in a 16-pin ceramic dual-in-line (CDIP) package, which provides hermetically sealed protection and excellent thermal stability for military-qualified electronic assemblies.

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.

Aug 1, 2026

STM32H725IGT3 High-Performance MCU Design Guide

Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.

Jul 31, 2026

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.

Jul 31, 2026

STEF05SGR 5 V eFuse Protection Design Guide

Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.

Jul 30, 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 $9.5868

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$14.3802	$14.38
3+	$10.5455	$31.64
8+	$9.5868	$76.69

pcs

Unit price: $14.3802 · Total: $14.38

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

SNJ54F109J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock

What are the key features of SNJ54F109J?

What is SNJ54F109J used for?

What are the specifications of SNJ54F109J?

Compliance & Regulatory

Where can I find the SNJ54F109J datasheet?

What are equivalent replacements for SNJ54F109J?

Frequently Asked Questions

What triggers the SNJ54F109J flip-flop?

What is the maximum clock frequency of the SNJ54F109J?

What temperature range does the SNJ54F109J operate over?

What package does the SNJ54F109J come in?

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

STM32H725IGT3 High-Performance MCU Design Guide

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

STEF05SGR 5 V eFuse Protection Design Guide

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

You May Also Like