CD54HC165F3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HC165F3A is an 8-bit parallel-in serial-out (PISO) shift register in the HC/UH CMOS family, 16-pin ceramic DIP package, operating at 50 pF load capacitance. Supports both parallel load and serial shift modes for GPIO expansion and data serialization. Available worldwide with in-stock inventory.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD54HC165F3A Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Non-compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD54HC165F3A?
- 8-bit parallel-load serial-shift operation enabling GPIO expansion using only 2 SPI wires plus clock for up to 8 inputs per IC
- SISO (serial-in serial-out) cascading capability allowing daisy-chaining multiple CD54HC165 devices to expand to 16, 24, or 32 inputs
- Ceramic DIP-16 package (JEDEC-30 R-GDIP-T16) providing military-grade hermetic sealing for high-reliability and aerospace applications
What is CD54HC165F3A used for?
The CD54HC165F3A is used in embedded systems and PLCs to read multiple parallel digital inputs — such as switches, encoder outputs, or sensor status lines — over a 3-wire serial interface, reducing microcontroller I/O pin count. Its SISO cascading mode allows multiple ICs to be chained for 16-bit, 24-bit, or larger input word widths without additional address decoding. The ceramic DIP package makes it suitable for military, aerospace, and industrial applications requiring extended temperature operation from -55°C to +125°C.
What are the specifications of CD54HC165F3A?
| Pbfree Code | Yes |
| Reach Compliance Code | Not Compliant |
| YTEOL | 15 |
| Additional Feature | SISO OPERATION ALSO AVAILABLE |
| Count Direction | RIGHT |
| Family | HC/UH |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | PARALLEL IN SERIAL OUT |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0052A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| 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 |
| Prop. Delay@Nom-Sup | 32ns |
| Propagation Delay (tpd) | 250ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Screening Level | 38535Q/M;38534H;883B |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| 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 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 24MHz |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Non-compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the CD54HC165F3A datasheet?
CD54HC165F3A Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD54HC165F3A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many parallel inputs can be read per clock cycle using CD54HC165F3A, and how does cascading work?
Each CD54HC165F3A captures 8 parallel inputs on the falling edge of the SH/LD pin, then shifts them out serially over 8 clock pulses on the QH output. Multiple ICs can be cascaded by connecting QH of one device to the SER input of the next, extending the serial word to 16, 24, or 32 bits per load-and-shift cycle with no additional I/O pins required on the microcontroller.
What operating temperature range does the ceramic DIP-16 package of CD54HC165F3A support?
The CD54HC165F3A in ceramic DIP-16 (R-GDIP-T16) supports operation from -55°C to +125°C, meeting MIL-grade temperature requirements. This extended range exceeds the -40°C to +85°C range of commercial plastic SOIC equivalents and is required in avionics, defense electronics, and industrial control systems exposed to extreme thermal cycling environments.
What load capacitance rating applies to CD54HC165F3A, and how does it affect maximum clock frequency?
The CD54HC165F3A is rated at 50 pF load capacitance for its propagation delay and speed specifications. At 5 V supply and 50 pF, the HC family shift register operates reliably at clock frequencies up to approximately 25 MHz, giving an 8-bit word serialization time of around 320 ns per device. Higher PCB trace capacitance above 50 pF will reduce maximum safe clock frequency and should be accounted for in layout design.
How does CD54HC165F3A compare to CD74HC165 for a non-ceramic, commercial-grade design?
CD54HC165F3A uses a ceramic hermetic package with military temperature screening, while CD74HC165 uses plastic SOIC or DIP packaging for commercial -40°C to +85°C applications at lower cost. For designs that do not require MIL-grade hermetic packaging or the -55°C lower temperature bound, CD74HC165 in SOIC-16 is typically 50% to 70% less expensive per unit while offering identical 8-bit PISO logic function on the same 2 V to 6 V supply range.
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