CD74HC40103E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

Name: CD74HC40103E
Brand: Texas Instruments
SKU: CD74HC40103E
Availability: InStock

The CD74HC40103E is an 8-stage presettable binary down counter from Texas Instruments operating from 2 V to 6 V supply with terminal count output and synchronous reset. It supports load/preset input for programmable countdown in a 16-pin PDIP package. Available in stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

CD74HC40103EDual-In-Line Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Dual-In-Line Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: CD74HC40103E Datasheet PDF
Category: Integrated Circuit
Price: From $0.7500(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 CD74HC40103E?

8-stage presettable binary down counter with terminal count output (TCO) for cascading multiple counters in wider count sequences
Synchronous reset-to-max-count feature allowing instant reinitialization without glitch in time-critical control loops
Wide supply range of 2 V to 6 V covering both 3.3 V and 5 V logic systems in HC/UH CMOS family

What is CD74HC40103E used for?

The CD74HC40103E is used in programmable timer circuits, frequency dividers, and event counting systems where a down-counting sequence with a preset terminal count is required. Its TCO output simplifies cascading for longer count chains, making it suitable for industrial control timers, motor step sequencers, and digital delay generators.

What are the specifications of CD74HC40103E?

Pbfree Code	Yes
YTEOL	15
Additional Feature	TCO OUTPUT; RESET TO MAX COUNT
Count Direction	DOWN
Family	HC/UH
JESD-30 Code	R-PDIP-T16
JESD-609 Code	e4
Load Capacitance (CL)	50pF
Load/Preset Input	YES
Logic IC Type	BINARY COUNTER
Max Frequency@Nom-Sup	10000000Hz
Max I(ol)	0.0052A
Mode of Operation	SYNCHRONOUS
Number of Bits	8
Number of Functions	1
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)	0.08mA
Prop. Delay@Nom-Sup	64ns
Propagation Delay (tpd)	450ns
Qualification Status	Not Qualified
Supply Voltage-Max (Vsup)	6V
Supply Voltage-Min (Vsup)	2V
Supply Voltage-Nom (Vsup)	4.5V
Surface Mount	NO
Technology	CMOS
Temperature Grade	MILITARY
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	12MHz
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 CD74HC40103E datasheet?

CD74HC40103E Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for CD74HC40103E?

Compatible alternatives and drop-in replacements for CD74HC40103E:

CD74HC40103EE4Texas Instruments Binary

Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 8-Bit, Down Direction, CMOS, PDIP16

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

How is the CD74HC40103E configured for a 200-count programmable timer?

For a 200-count timer, two CD74HC40103E devices are cascaded: the first counts down 100 steps from the preset value, asserts its TCO output, which clocks the second device. Each handles an 8-bit (255-maximum) countdown, and the load/preset input initializes each stage. The terminal count output of the second stage signals the end of the 200-cycle sequence.

What supply voltage range does the CD74HC40103E support and which systems is it compatible with?

The CD74HC40103E operates across a supply voltage range of 2 V to 6 V, making it compatible with both 3.3 V microcontroller-based systems and traditional 5 V TTL-level designs. This flexibility allows its use in mixed-voltage environments without level translation for standard HC-family input thresholds.

When does the reset-to-max-count feature of the CD74HC40103E improve system reliability?

The synchronous reset-to-max-count feature reloads the maximum 8-bit count value (255) in one clock cycle, preventing partial or glitchy count states during recovery from power transients or fault conditions. In safety-critical industrial timers, this ensures the countdown always restarts from a known 255-count state rather than an undefined intermediate value.

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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.

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AvailabilityIn Stock

Reference Price (USD)

From $0.7500

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Qty.	Unit Price	Ext. Price
1+	$1.1400	$1.14
14+	$0.9500	$13.30
18+	$0.9000	$16.20
68+	$0.7500	$51.00

pcs

Unit price: $1.1400 · Total: $1.14

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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CD74HC40103E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

What are the key features of CD74HC40103E?

What is CD74HC40103E used for?

What are the specifications of CD74HC40103E?

Compliance & Regulatory

Where can I find the CD74HC40103E datasheet?

What are equivalent replacements for CD74HC40103E?

Frequently Asked Questions

How is the CD74HC40103E configured for a 200-count programmable timer?

What supply voltage range does the CD74HC40103E support and which systems is it compatible with?

When does the reset-to-max-count feature of the CD74HC40103E improve system reliability?

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

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