Overview
The 74HCT164D is an 8-bit serial-in, parallel-out shift register produced by NXP Semiconductors. This device is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) levels. It features two serial data inputs (DSA and DSB) and eight parallel data outputs (Q0 to Q7), allowing data to be entered serially and output in parallel. The device operates with a wide supply voltage range from 4.5 to 5.5 volts and is known for its low power dissipation and high noise immunity.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT164D | 4.5 - 5.5 | TTL | ± 4 | 20 | 55 | 8 | low | -40~125 | 107 | 19.4 | 65 | SO14 |
Key Features
- Two serial data inputs (DSA and DSB) with either input capable of acting as an active HIGH enable for data entry through the other input.
- Eight parallel data outputs (Q0 to Q7).
- Data is shifted on the LOW-to-HIGH transitions of the clock (CP) input.
- Asynchronous master reset (MR) input to clear the register and force all outputs LOW.
- Inputs include clamp diodes for interfacing with voltages in excess of VCC.
- Wide supply voltage range from 4.5 to 5.5 volts.
- CMOS low power dissipation.
- High noise immunity.
- Complies with JEDEC standards (JESD8C and JESD7A).
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
- Multiple package options, including SO14.
Applications
The 74HCT164D is versatile and can be used in a variety of applications across different industries, including:
- Automotive systems for data processing and transmission.
- Industrial control systems for sequential data handling.
- Consumer electronics for display and interface control.
- Computing and networking for data buffering and shifting.
- Mobile and wearable devices for efficient data management.
Q & A
- What is the primary function of the 74HCT164D?
The primary function of the 74HCT164D is to act as an 8-bit serial-in, parallel-out shift register. - What are the logic switching levels for the 74HCT164D?
The logic switching levels for the 74HCT164D are TTL (Transistor-Transistor Logic) levels. - What is the supply voltage range for the 74HCT164D?
The supply voltage range for the 74HCT164D is from 4.5 to 5.5 volts. - How many parallel data outputs does the 74HCT164D have?
The 74HCT164D has eight parallel data outputs (Q0 to Q7). - What is the maximum clock frequency for the 74HCT164D?
The maximum clock frequency for the 74HCT164D is 55 MHz. - Does the 74HCT164D have ESD protection?
Yes, the 74HCT164D has ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V. - What is the operating temperature range for the 74HCT164D?
The operating temperature range for the 74HCT164D is from -40°C to +125°C. - Can the 74HCT164D be used in automotive applications?
Yes, the 74HCT164D can be used in automotive applications due to its robust specifications and compliance with JEDEC standards. - What package options are available for the 74HCT164D?
The 74HCT164D is available in several package options, including SO14. - Does the 74HCT164D have asynchronous master reset?
Yes, the 74HCT164D has an asynchronous master reset (MR) input to clear the register and force all outputs LOW.
