Overview
The CD74AC164M is an 8-bit serial-in/parallel-out shift register produced by Texas Instruments. This device utilizes Advanced CMOS Logic technology and is designed for high-speed applications with low power consumption. It features asynchronous reset and operates on a positive-edge triggered clock. The CD74AC164M is available in a 14-pin SOIC package, making it suitable for a variety of digital circuit designs.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| VCC (DC Supply Voltage) | V | -0.5 | 6 | |
| IIK (DC Input Diode Current) | mA | ±20 | ||
| IOK (DC Output Diode Current) | mA | ±50 | ||
| IO (DC Output Source or Sink Current per Output Pin) | mA | ±50 | ||
| ICC or IGND (DC VCC or Ground Current) | mA | ±100 | ||
| fMAX (Max. Clock Frequency at VCC = 5V) | MHz | 80 | ||
| tPLH, tPHL (Propagation Delay, CP to Qn at VCC = 5V) | ns | 3.2 | 12.5 | |
| tSU (Set-up Time at VCC = 5V) | ns | 2.2 | 2.5 | |
| tH (Hold Time at VCC = 5V) | ns | 2.6 | 3 |
Key Features
- Buffered inputs
- Typical propagation delay of 6ns at VCC = 5V, TA = 25°C, CL = 50pF
- SCR-latchup-resistant CMOS process and circuit design
- Speed of bipolar FAST™/AS/S with significantly reduced power consumption
- Balanced propagation delays
- AC types feature 1.5V to 5.5V operation and balanced noise immunity at 30% of the supply
- ±24mA output drive current, capable of driving 50Ω transmission lines and fanout to 15 FAST™ ICs
- Exceeds 2kV ESD protection (MIL-STD-883, Method 3015)
Applications
- Digital signal processing and data transmission systems
- High-speed digital circuits requiring low power consumption
- Serial-to-parallel data conversion in various digital systems
- Asynchronous reset applications in digital logic circuits
- Industrial control systems and automation
Q & A
- What is the CD74AC164M?
The CD74AC164M is an 8-bit serial-in/parallel-out shift register produced by Texas Instruments.
- What is the typical propagation delay of the CD74AC164M?
The typical propagation delay is 6ns at VCC = 5V, TA = 25°C, CL = 50pF.
- What is the maximum clock frequency of the CD74AC164M at VCC = 5V?
The maximum clock frequency is 80 MHz at VCC = 5V.
- What is the output drive current of the CD74AC164M?
The output drive current is ±24mA, capable of driving 50Ω transmission lines and fanout to 15 FAST™ ICs.
- Is the CD74AC164M ESD protected?
Yes, it exceeds 2kV ESD protection (MIL-STD-883, Method 3015).
- What are the operating voltage ranges for the CD74AC164M?
The AC types feature 1.5V to 5.5V operation.
- What is the package type of the CD74AC164M?
The CD74AC164M is available in a 14-pin SOIC package.
- Is the CD74AC164M still in production?
No, the CD74AC164M is obsolete and new designs should consider an alternate product.
- What is the clock trigger type of the CD74AC164M?
The clock is rising-edge triggered.
- How does the asynchronous reset work on the CD74AC164M?
A LOW on the Master Reset (MR) pin resets the shift register and all outputs go to the LOW state regardless of the input conditions.
