Overview
The CD74HC194MT is a high-speed CMOS logic 4-bit bidirectional universal shift register produced by Texas Instruments. This component is part of the 74HC series and is known for its versatility and high performance. It operates in four primary modes: shift right, shift left, hold, and reset, making it suitable for a variety of digital circuit applications. The device features synchronous parallel or serial operation and includes an asynchronous master reset function. It is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package, which is surface mountable and RoHS compliant.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Voltage - Supply | 2V ~ 6V |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Package | Tape & Reel (TR) |
| Output Type | Push-Pull |
| Operating Temperature | -55°C ~ 125°C |
| Number of Elements | 1 |
| Number of Bits per Element | 4 |
| Mounting Type | Surface Mount |
| Logic Type | Register, Bidirectional |
| Function | Universal |
| RoHs Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Key Features
- Four operating modes: shift right, shift left, hold, and reset.
- Synchronous parallel or serial operation.
- Asynchronous master reset (MR) function.
- Typical maximum clock frequency of 60MHz at VCC= 5V, CL= 15pF, TA= 25°C.
- Wide operating temperature range: -55°C to 125°C.
- Balanced propagation delay and transition times.
- Significant power reduction compared to LSTTL logic ICs.
- CMOS input compatibility with low input current (IL ≤ 1µA at VOL, VOH).
- Direct LSTTL input logic compatibility for HCT types.
- High noise immunity: NIL= 30%, NIH= 30% of VCC at VCC= 5V.
Applications
The CD74HC194MT is versatile and can be used in a variety of digital circuit applications, including:
- Serial and parallel data processing.
- Shift registers in digital counters and timers.
- Data storage and retrieval systems.
- Digital signal processing circuits.
- Microcontroller and microprocessor interfaces.
- Automotive and industrial control systems.
Q & A
- What is the primary function of the CD74HC194MT?
The CD74HC194MT is a 4-bit bidirectional universal shift register, capable of operating in shift right, shift left, hold, and reset modes.
- What is the operating voltage range of the CD74HC194MT?
The operating voltage range is 2V to 6V.
- What is the package type of the CD74HC194MT?
The component is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package.
- What is the maximum clock frequency of the CD74HC194MT?
The typical maximum clock frequency is 60MHz at VCC= 5V, CL= 15pF, TA= 25°C.
- Does the CD74HC194MT have an asynchronous reset function?
- What is the operating temperature range of the CD74HC194MT?
The operating temperature range is -55°C to 125°C.
- Is the CD74HC194MT RoHS compliant?
- What is the moisture sensitivity level (MSL) of the CD74HC194MT?
The MSL is 1 (Unlimited).
- Can the CD74HC194MT be used in both serial and parallel data processing?
- What are some common applications of the CD74HC194MT?
- Does the CD74HC194MT have high noise immunity?
