CD74HC125M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
CD74HC125M is a quad 3-state buffer and line driver from Texas Instruments in the high-speed CMOS HC logic family. It features 4 independent channels with active-low output enables, operating from 2 V to 6 V supply, and sources 6 mA output current at 50 pF load in a 14-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC125M 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
- Quad independent 3-state output buffers with active-low enable pins for flexible bus multiplexing and signal isolation on 2 V to 6 V rails
- High-speed CMOS HC family with typical propagation delay of 7 ns at 5 V supply, compatible with TTL and CMOS logic levels
- 6 mA sink and source output drive capability at 50 pF load capacity supporting medium-fanout data bus driving in 14-pin SOIC package
Applications
CD74HC125M is widely used for data bus isolation, signal buffering between mixed-voltage logic families, and output enable gating in microcontroller peripheral interfaces. Its 4 independent 3-state channels allow selective bus segment connection in SPI, parallel memory, and I/O expander designs operating from 2 V to 6 V. The 14-pin SOIC footprint supports both industrial control boards and consumer electronics requiring unidirectional bus buffering with enable logic.
Specifications
| YTEOL | 0 |
| Additional Feature | DUMMY VAL |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.006A |
| Number of Bits | 1 |
| Number of Functions | 4 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 30ns |
| Propagation Delay (tpd) | 150ns |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 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 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC125M:
Frequently Asked Questions
What drive current and supply voltage does CD74HC125M support for a 5 V TTL bus interface?
CD74HC125M sources and sinks 6 mA output current at a 5 V supply with 50 pF load capacitance, providing sufficient drive for standard TTL logic levels. It operates from 2 V to 6 V, making it directly compatible with both 3.3 V and 5 V TTL bus systems with a typical propagation delay of 7 ns.
How do the active-low enable inputs on CD74HC125M help in shared parallel bus designs?
Each of the 4 channels on CD74HC125M has an independent active-low output enable pin (OE), which tristates that channel's output when deasserted high. This allows multiple bus drivers to share a common data bus line, with only one driver enabled at a time, preventing bus contention in parallel memory or I/O interfaces.
Can CD74HC125M interface between 3.3 V and 5 V logic in a mixed-voltage MCU design?
CD74HC125M accepts input voltages from 0 V to VCC on a 2 V to 6 V supply, and its HC logic family inputs are TTL-compatible. When powered at 5 V, it accepts 3.3 V logic HIGH inputs (above the 3.15 V VIH threshold) while driving 5 V outputs, enabling level-compatible interfacing between 3.3 V MCUs and 5 V peripherals.
What are the PCB dimensions and pin count of the CD74HC125M package for automated assembly?
CD74HC125M uses a 14-pin SOIC small outline package with a 8.65 mm × 3.9 mm body, 1.27 mm pin pitch, and 1.75 mm maximum height, suitable for standard SMT pick-and-place assembly in high-volume industrial and consumer PCB production.
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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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