SN74AC373NIn StockTexas Instruments
SN74AC373N is an octal D-type transparent latch with 3-state outputs in a 20-pin DIP package. Features 50 pF load capacitance, enable-low control, and 24 mA output sink current. Ideal for bus interfacing and data storage applications. From $0.4641 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74AC373N Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4641(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal D-type transparent latch with active-low enable control for reliable data capture
- 3-state outputs (high-Z) for easy multi-device bus sharing and signal isolation
- AC-family CMOS logic with 50 pF load capacitance and 24 mA sink current for robust drive
- 20-pin PDIP package for easy breadboard prototyping and through-hole assembly
- Lead-free (Pb-free) compliant with JESD-609 e4 rating for RoHS compatibility
Applications
The SN74AC373N is widely used in microprocessor-based systems for address/data bus buffering and latching, enabling reliable data capture in memory interface circuits. It is commonly employed in industrial control systems, PLCs, and embedded designs where 3-state bus expansion is needed to connect multiple peripherals. Its transparent latch architecture also makes it suitable for display drivers, register files, and any application requiring temporary data storage with high-impedance output capability.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | AC |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 15ns |
| Propagation Delay (tpd) | 15ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74AC373N:
Frequently Asked Questions
What is the SN74AC373N and what does it do?
The SN74AC373N is an octal D-type transparent latch with 3-state outputs from Texas Instruments. It stores 8 bits of data simultaneously when the enable input is active-low, and its 3-state outputs allow multiple devices to share a single bus without signal conflict.
What are the key electrical specifications of the SN74AC373N?
The SN74AC373N operates in the AC CMOS logic family with a load capacitance (CL) of 50 pF and a maximum output sink current (IOL) of 24 mA. It is housed in a 20-pin PDIP (R-PDIP-T20) package and is lead-free (Pb-free) compliant per JESD-609 e4.
What are typical applications for the SN74AC373N?
Typical applications include microprocessor address and data bus latching, memory interface circuits, industrial PLC I/O expansion, and display driver registers. The 3-state output makes it ideal for any design requiring multiple chips to share a common data bus.
What is a suitable replacement or alternative for the SN74AC373N?
Compatible alternatives include the SN74HCT373N (HCT-family, TTL-compatible inputs), SN74LS373N (LS-family, lower power), and SN74F373N (F-family, faster switching). Ensure the replacement matches your supply voltage, speed grade, and drive current requirements before substitution.
Is the SN74AC373N still in production and where can I buy it?
Yes, the SN74AC373N is an active product from Texas Instruments. It is available from major distributors worldwide starting from approximately $0.4641 per unit. FindMyChip lists current stock and pricing from multiple suppliers to help you source it quickly.
Related Guides
Is Buying Electronic Components from Chinese Suppliers Safe? A 2025–2026 Buyer's Guide
A 2025–2026 buyer's guide to sourcing electronic components from Chinese suppliers: real risks, authorized vs. broker channels, and a 5-point safety framework.
Apr 22, 2026
BOM Optimization: How to Reduce Electronic Component Costs Without Sacrificing Quality
Practical strategies for reducing BOM costs by 15-30% through smart component selection, supplier diversification, and procurement optimization.
Apr 9, 2026
Top 10 Microcontrollers in 2025: A Comprehensive Comparison Guide
Detailed comparison of the most popular MCUs in 2025 — STM32, ESP32, RP2040, nRF52, and more. Specs, pricing, ecosystem, and use-case recommendations.
Apr 9, 2026
How to Read an IC Datasheet: A Practical Guide for Engineers
Master the art of reading IC datasheets. Learn what every section means, which specs matter most, and how to extract the information you need for your design.
Apr 9, 2026
Why Buy from FindMyChip
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.6500 | $1.65 |
| 4+ | $1.3200 | $5.28 |
| 5+ | $1.2375 | $6.19 |
| 16+ | $0.8250 | $13.20 |
| 18+ | $0.8044 | $14.48 |
| 64+ | $0.4641 | $29.70 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”