M74HC20TTR STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
The STMicroelectronics M74HC20TTR is a dual 4-input NAND gate in the HC/UH logic family, housed in a 14-lead SOIC package, operating from 2 V to 6 V with 50 pF load capacitance and 4 mA output drive. From $0.15 in stock worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- M74HC20TTR 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
What are the key features of M74HC20TTR?
- Dual independent 4-input NAND gate in a single 14-lead SOIC package for space-efficient logic design
- HC/UH family operation from 2 V to 6 V supply enabling compatibility with both 3.3 V and 5 V systems
- 50 pF load capacitance rating and 4 mA output current for reliable bus driving in high-density PCBs
- Tape-and-reel packaging (TTR suffix) for automated SMD assembly in high-volume production
What is M74HC20TTR used for?
The M74HC20TTR is used as a combinational logic building block in microcontroller glue logic, FPGA peripheral decode circuits, and address decoding where multiple control signals must be combined with a NAND function. Its 2 V to 6 V operating range makes it compatible with both legacy 5 V TTL-level systems and modern 3.3 V microcontroller I/O. The tape-and-reel format suits high-volume automated assembly in consumer electronics, industrial controllers, and communication equipment.
What are the specifications of M74HC20TTR?
| Pbfree Code | No |
| YTEOL | 0 |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | NAND GATE |
| Max I(ol) | 0.004A |
| Number of Functions | 2 |
| Number of Inputs | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Prop. Delay@Nom-Sup | 24ns |
| Propagation Delay (tpd) | 120ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| 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 | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the M74HC20TTR datasheet?
M74HC20TTR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for M74HC20TTR?
Compatible alternatives and drop-in replacements for M74HC20TTR:
Frequently Asked Questions
What supply voltage range does the M74HC20TTR support, and can it interface with 3.3 V microcontrollers?
The M74HC20TTR operates from 2 V to 6 V, making it fully compatible with 3.3 V microcontroller I/O as well as 5 V TTL-level legacy systems. This wide range allows it to serve as a level-tolerant NAND gate in mixed-voltage board designs without additional level-shifting components.
How many independent 4-input NAND functions does the M74HC20TTR integrate, and what is its package?
The M74HC20TTR contains 2 independent 4-input NAND gates in a single 14-lead SOIC package. Each gate can accept 4 digital inputs and produce an active-low output, enabling compact combinational logic without consuming two separate packages on the board.
When is the M74HC20TTR preferred over a basic 2-input NAND for address decoding in embedded systems?
A 4-input NAND gate like the M74HC20TTR is preferred when four address or chip-select lines must be simultaneously decoded in a single gate stage, reducing propagation delay and board area compared to a cascade of 2-input NAND gates. With 4 mA output current at a 50 pF load, it reliably drives the enable inputs of multiple peripheral ICs without a buffer.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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