CD74HC194M Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments CD74HC194M is a 4-bit bidirectional universal shift register with serial/parallel-to-parallel operation, hold mode, 20 MHz maximum frequency, and 2 V to 6 V supply range, in a 16-pin SOIC package. From $0.70 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC194M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4895(MOQ 5)
- 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 CD74HC194M?
- 4-bit bidirectional shift register with serial, parallel, and hold modes for versatile data manipulation
- 20 MHz maximum clock frequency in HC/UH CMOS family with 50 pF rated load capacitance
- 16-pin SOIC (R-PDSO-G16) surface-mount package with 2 V to 6 V wide supply range
What is CD74HC194M used for?
The CD74HC194M is used in serial-to-parallel and parallel-to-serial data conversion stages within microcontroller interfaces, FPGA I/O expansion, and digital signal routing circuits. Its bidirectional shift capability and hold mode make it valuable for building ring counters, sequence generators, and rotate-left/rotate-right pipelines in digital control and communications systems. Operating up to 20 MHz from a 2 V to 6 V supply, it fits naturally in mixed-voltage embedded designs requiring both HC-speed performance and low power consumption.
What are the specifications of CD74HC194M?
| YTEOL | 0 |
| Additional Feature | HOLD MODE |
| Count Direction | BIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | PARALLEL IN PARALLEL OUT |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0052A |
| Number of Bits | 4 |
| Number of Functions | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 37ns |
| Propagation Delay (tpd) | 265ns |
| 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 | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 60MHz |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Where can I find the CD74HC194M datasheet?
CD74HC194M Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC194M?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What operating modes does the CD74HC194M support beyond simple left or right shifting?
In addition to shift-left and shift-right serial operation, the CD74HC194M supports synchronous parallel load from 4-bit input data and a hold mode that retains the current register contents without a clock transition, providing three functional modes in a single 16-pin SOIC device.
At what maximum clock rate can the CD74HC194M shift data reliably?
The CD74HC194M is rated for a maximum clock frequency of 20 MHz at nominal supply voltage, sufficient for most serial data formatting, stepper-motor sequence control, and parallel bus serialization tasks in embedded systems running at typical microcontroller bus speeds.
How is the CD74HC194M used in a serial-to-parallel data interface design?
In a serial-to-parallel configuration, data is clocked in serially one bit at a time through the shift-right or shift-left input; after 4 clock cycles, all 4 output pins simultaneously reflect the received nibble, enabling the CD74HC194M to convert a serial bit stream to a parallel 4-bit bus for downstream parallel logic or displays.
What supply voltage range does the CD74HC194M accept and does it interface with both 3.3 V and 5 V systems?
The CD74HC194M operates from 2 V to 6 V supply, covering standard 3.3 V and 5 V logic families; at 3.3 V its HC inputs are compatible with LVCMOS outputs, while at 5 V it interfaces directly with legacy TTL and CMOS logic, avoiding external level-translation components in mixed-voltage board designs.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $0.7200 | $3.60 |
| 10+ | $0.6660 | $6.66 |
| 40+ | $0.5960 | $23.84 |
| 250+ | $0.5729 | $143.22 |
| 500+ | $0.5013 | $250.65 |
| 100000+ | $0.4895 | $48950.00 |
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