CD74HC4094NSR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC4094NSR is a high-speed CMOS 8-stage serial-in parallel-out shift and store bus register from Texas Instruments in a 16-pin SOIC package. It operates up to 20 MHz, supports 2V to 6V supply, and features 3-state parallel outputs for direct bus connection. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4094NSR 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
Key Features
- 8-stage serial-in parallel-out shift register with output store latch enabling glitch-free parallel output updates synchronized to a strobe signal
- 3-state parallel outputs allowing direct connection to shared data buses while providing high-impedance state for bus release and multi-device sharing
- High-speed HC CMOS logic family with 20 MHz maximum clock frequency and 2V to 6V supply voltage for compatibility with 3.3V and 5V systems
- Cascadable serial output pin enabling multiple devices to be chained together for expanding to 16-bit, 24-bit, or wider parallel output configurations
Applications
The CD74HC4094NSR is widely used for expanding the parallel output capability of microcontrollers by converting a serial data stream from an SPI or bit-bang interface into 8 simultaneous parallel outputs, reducing GPIO pin usage. It is commonly applied in LED bar graph drivers, relay control arrays, LCD segment controllers, and multi-channel digital-to-analog output applications where latched parallel data must be updated synchronously. The 3-state output feature also makes it suitable for shared data bus architectures in programmable logic and embedded system designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Count Direction | RIGHT |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | SERIAL IN PARALLEL OUT |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0052A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR, 13 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 33ns |
| Propagation Delay (tpd) | 295ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 24MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4094NSR:
8-Bit, Right Direction, True Output, CMOS, PDSO16
Serial In Parallel Out, HC/UH Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Frequently Asked Questions
What is the function of the CD74HC4094NSR?
The CD74HC4094NSR is an 8-stage serial-in parallel-out shift register with output storage latches. It shifts serial input data on each clock edge, stores it in the register, and transfers it to the 8 parallel outputs on a strobe signal, enabling synchronous parallel output updates without output glitches during shifting.
What is the maximum clock frequency of the CD74HC4094NSR?
The CD74HC4094NSR supports a maximum clock frequency of 20 MHz at nominal supply voltage, providing sufficient speed for most serial-to-parallel data conversion applications. This makes it suitable for SPI-driven output expanders and clocked shift register chains in embedded system designs.
What are the 3-state outputs used for on the CD74HC4094NSR?
The 3-state outputs on the CD74HC4094NSR allow all parallel outputs to be placed in a high-impedance state when the output enable pin is deasserted. This is essential for connecting multiple devices to a shared data bus, as it prevents bus contention when other devices are driving the same lines.
Can multiple CD74HC4094NSR devices be cascaded?
Yes, the CD74HC4094NSR provides a serial output (QS) pin that feeds the shifted data to the next device in a chain. By cascading multiple ICs, designers can create 16-bit, 24-bit, or wider parallel output expanders using a single serial data line, significantly expanding GPIO capability with minimal interface pins.
What is the supply voltage range and package for the CD74HC4094NSR?
The CD74HC4094NSR operates from 2V to 6V supply voltage and is housed in a 16-pin SOIC package (JESD-30 code R-PDSO-G16). The small outline package supports automated SMT assembly, and the wide voltage range enables use in both 3.3V and 5V digital systems across industrial, consumer, and embedded electronics applications.
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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.
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