CD54HCT123F3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HCT123F3A is a dual retriggerable monostable multivibrator in HCT logic family operating from -55°C to 125°C. Delivers precise one-shot pulse generation with 50 pF load capacitance in a ceramic 16-pin DIP package. Available in tube packaging for military and high-reliability applications with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD54HCT123F3A 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 CD54HCT123F3A?
- Dual retriggerable monostable multivibrator enabling precise 2-channel one-shot pulse generation in a single 16-pin CDIP package
- Extended -55°C to 125°C operating temperature range meeting military and aerospace reliability standards
- HCT-family logic compatibility bridging TTL and CMOS systems with standard 5 V supply operation
- Ceramic DIP package providing superior hermeticity and long-term reliability in harsh environment applications
What is CD54HCT123F3A used for?
The CD54HCT123F3A is designed for military avionics, defense electronics, and high-reliability industrial control systems requiring dual monostable pulse generation from -55°C to 125°C. Its retriggerable inputs allow flexible pulse width extension in timing circuits, debounce networks, and delay generators where precise one-shot operation across wide temperature ranges is critical. The 16-pin ceramic DIP package satisfies the mechanical and hermeticity requirements of aerospace and defense procurement standards.
What are the specifications of CD54HCT123F3A?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | RETRIGGERABLE |
| Family | HCT |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MONOSTABLE MULTIVIBRATOR |
| Max I(ol) | 0.004A |
| Number of Bits | 2 |
| Number of Data/Clock Inputs | 2 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.16mA |
| Propagation Delay (tpd) | 102ns |
| Qualification Status | Not Qualified |
| Screening Level | 38535Q/M;38534H;883B |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the CD54HCT123F3A datasheet?
CD54HCT123F3A Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD54HCT123F3A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What temperature range does the CD54HCT123F3A support and which environments require this?
The CD54HCT123F3A operates from -55°C to 125°C, meeting military-grade temperature requirements. This extended range is mandatory for avionics, defense electronics, and space applications where commercial-grade ICs rated only to 85°C would fail under thermal cycling or high-altitude temperature extremes.
How does the retriggerable input of CD54HCT123F3A affect pulse output in digital timing circuits?
When the input is retriggered before the current output pulse ends, the CD54HCT123F3A resets its internal timing RC network and extends the output pulse from the new trigger edge. This allows the 2-bit monostable to produce elongated or sustained output pulses in response to repetitive input bursts, useful for watchdog timers and switch debounce circuits at load capacitances up to 50 pF.
Why is the ceramic DIP package of CD54HCT123F3A preferred over plastic packages for high-reliability designs?
The ceramic 16-pin CDIP (JESD-30 code R-GDIP-T16) offers hermetic sealing that prevents moisture ingress, which is critical for military and aerospace boards exposed to humidity cycling between -55°C and 125°C. Plastic DIP packages absorb moisture and can crack or delaminate under the same temperature and humidity conditions.
How many independent monostable channels does CD54HCT123F3A provide and how are they triggered?
The CD54HCT123F3A provides 2 independent retriggerable monostable channels in a single 16-pin package, each with separate trigger and reset inputs. Each channel can source and sink up to 4 mA of output current at 50 pF load, making them suitable for driving CMOS and TTL logic inputs in HCT-family system designs.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit