74FCT2373CTSOCTG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The 74FCT2373CTSOCTG4 is an octal D-type transparent latch and bus driver from Texas Instruments in the FCT logic family. Key specs: 8-bit unidirectional, active-low output enable, 12 mA sink current, 20-pin SOIC package. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- 74FCT2373CTSOCTG4 Datasheet PDF
- Category
- Integrated Circuit
- 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: data is passed when Latch Enable is high, latched when low — ideal for bus hold
- FCT logic family: fast CMOS with TTL-compatible inputs for high-speed backplane and bus driving applications
- 12 mA output sink current (Max I(ol) = 0.012 A) for robust fan-out drive capability on heavily loaded buses
- 20-pin SOIC (R-PDSO-G20) surface-mount package with 50 pF load capacitance and active-low output enable
Applications
The 74FCT2373CTSOCTG4 is commonly used as an address or data latch in microprocessor bus demultiplexing circuits, where 8-bit data must be captured and held stable while the bus transitions to a new cycle. Its transparent latch mode allows real-time pass-through during valid data windows, and the storage mode holds the last valid byte during address or control phases. The FCT family's fast switching speed and TTL-compatible inputs make it well-suited for VMEbus, ISA bus, and industrial backplane applications.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | FCT |
| JESD-30 Code | R-PDSO-G20 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.012A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE WITH SERIES RESISTOR |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 0.2mA |
| Prop. Delay@Nom-Sup | 4.7ns |
| Propagation Delay (tpd) | 5.5ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | HIGH LEVEL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the 74FCT2373CTSOCTG4 and how does a transparent latch work?
The 74FCT2373CTSOCTG4 is an octal D-type transparent latch: when the Latch Enable (LE) pin is high, outputs follow the D inputs in real-time (transparent mode). When LE goes low, the outputs are latched and hold their last state regardless of input changes. This behavior is used in address demultiplexing for multiplexed bus microprocessors.
What is the output drive capability of the 74FCT2373CTSOCTG4?
The 74FCT2373CTSOCTG4 can sink up to 12 mA (Max I(ol) = 0.012 A) at each output. This higher drive current compared to standard HC devices makes it suitable for driving long bus traces or multiple device inputs on heavily loaded PCB backplanes and data buses in industrial and computing systems.
What package and pin count does the 74FCT2373CTSOCTG4 use?
The 74FCT2373CTSOCTG4 comes in a 20-pin SOIC (Small Outline Integrated Circuit) package, JESD-30 designated R-PDSO-G20. The surface-mount package supports standard reflow assembly and is suitable for compact industrial PCBs requiring octal latch functions in a proven wide-body SOIC form factor.
What logic family does the 74FCT2373CTSOCTG4 belong to?
The 74FCT2373CTSOCTG4 is part of the FCT (Fast CMOS Technology) logic family, which combines CMOS low-power characteristics with TTL-compatible input thresholds and fast propagation delays. FCT devices are designed for high-speed bus interfaces and backplane applications where both speed and drive strength are important.
Is the 74FCT2373CTSOCTG4 RoHS compliant?
The 74FCT2373CTSOCTG4 has a Pb-free code of No, indicating this particular variant is not lead-free. Designers requiring RoHS-compliant versions should check for alternative variants or replacement parts in the TI portfolio that carry the e4 JESD-609 Pb-free designation for compliance with EU RoHS directives.
Related Guides
SN74LVC14APWR Hex Schmitt-Trigger Inverter: Application Note and Design Guide
Complete design guide for the SN74LVC14APWR hex Schmitt-trigger inverter: thresholds, decoupling, oscillator design, package selection, and common pitfalls.
May 21, 2026
TPS62841DGRR Buck Converter Selection Guide: Ultra-Low 60 nA IQ for Battery-Powered IoT
How to choose the right TPS62841 variant for IoT, wearables, and wireless sensors: quiescent current, voltage range, package, and application examples.
May 21, 2026
TPS54160DGQR Selection Guide: How to Choose a 60V Step-Down Buck Converter
Complete selection guide for the TPS54160DGQR 60V/1.5A step-down converter. Compare specs, alternatives, and sourcing options for industrial and automotive designs.
May 20, 2026
LMV932MM Dual Low-Voltage CMOS Op-Amp: Application Design Guide
Complete application design guide for the LMV932MM dual rail-to-rail CMOS op-amp: supply decoupling, RRIO design rules, stability, and recommended circuits for 1.8V–5.5V battery-powered systems.
May 20, 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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”