CD74HC40103MT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC40103MT is a single 8-bit synchronous/asynchronous binary down counter from Texas Instruments, operating at up to 10 MHz in a 16-pin SOIC tape-and-reel package. It features a terminal count output, reset-to-max function, and load/preset input for flexible counting applications. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC40103MT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit binary down counter with synchronous and asynchronous reset modes for versatile counting control
- Terminal Count Output (TCO) enables easy cascading of multiple counters for extended count ranges
- Load/Preset input allows the counter to be initialized to any value, enabling programmable count sequences
- HC/UH logic family supports 2V to 6V operation at up to 10 MHz with 50 pF load capacitance
Applications
The CD74HC40103MT is used in digital timing circuits, frequency dividers, and event counting systems where a precise 8-bit down counter with flexible reset and preset capabilities is required. Its terminal count output makes it easy to cascade multiple devices for 16-bit or wider counting applications in industrial automation and instrumentation. The device is also well suited for programmable delay generators, watchdog timer circuits, and general-purpose CMOS logic designs.
Specifications
| YTEOL | 0 |
| Additional Feature | TCO OUTPUT; RESET TO MAX COUNT |
| Count Direction | DOWN |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| 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 | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 12MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC40103MT:
Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 8-Bit, Down Direction, CMOS, PDSO16
Frequently Asked Questions
What is the maximum counting frequency of the CD74HC40103MT?
The CD74HC40103MT can count at a maximum frequency of 10 MHz (10,000,000 Hz) at nominal supply voltage with a 50 pF load capacitance, making it suitable for medium-speed digital timing and counting applications in CMOS logic systems.
What count direction does the CD74HC40103MT support?
The CD74HC40103MT is an 8-bit binary down counter, counting from a loaded or preset value down to zero. It supports both synchronous and asynchronous reset modes, and includes a terminal count output to signal when the count reaches zero.
What package does the CD74HC40103MT come in?
The CD74HC40103MT is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package in tape-and-reel (T/R) format, following the JESD-30 code R-PDSO-G16. This surface-mount package is ideal for automated PCB assembly.
Can CD74HC40103MT counters be cascaded for wider counting?
Yes, the CD74HC40103MT includes a Terminal Count Output (TCO) that goes active when the counter reaches zero. This output can drive the enable input of a subsequent CD74HC40103MT to cascade multiple 8-bit counters for 16-bit, 24-bit, or wider counting applications.
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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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