Overview
The 74HCT164DB,112 is an 8-bit serial-in, parallel-out shift register produced by Nexperia USA Inc. This device is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) input levels. It features two serial data inputs (DSA and DSB) and eight parallel data outputs (Q0 to Q7), allowing for flexible data entry and output configurations. The shift register operates by shifting data on the LOW-to-HIGH transitions of the clock (CP) input and includes an asynchronous master reset (MR) to clear the register and set all outputs to LOW.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HCT164DB,112 |
| Package | 14-SSOP (SOT337-1) |
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
| Logic Switching Levels | TTL |
| Output Drive Capability | ± 4 mA |
| Propagation Delay (tpd) | 20 ns |
| Maximum Clock Frequency (fmax) | 55 MHz |
| Number of Bits | 8 |
| Operating Temperature | -40 °C to +125 °C |
| Mounting Type | Surface Mount |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- Wide supply voltage range from 4.5 V to 5.5 V
- CMOS low power dissipation
- High noise immunity
- Gated serial data inputs
- Asynchronous master reset
- Complies with JEDEC standards (JESD8C and JESD7A)
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- Multiple package options available
Applications
The 74HCT164DB,112 is suitable for various digital logic applications requiring serial-to-parallel data conversion. It can be used in:
- Digital signal processing systems
- Data transmission and reception circuits
- Microcontroller and microprocessor interfaces
- Display drivers and LED controllers
- Automotive and industrial control systems
Q & A
- What is the primary function of the 74HCT164DB,112?
The primary function is to act as an 8-bit serial-in, parallel-out shift register.
- What are the supply voltage ranges for the 74HCT164DB,112?
The supply voltage range is from 4.5 V to 5.5 V.
- What logic switching levels does the 74HCT164DB,112 support?
The device supports TTL (Transistor-Transistor Logic) input levels.
- How many serial data inputs does the 74HCT164DB,112 have?
The device has two serial data inputs (DSA and DSB).
- What is the maximum clock frequency for the 74HCT164DB,112?
The maximum clock frequency is 55 MHz.
- What is the operating temperature range for the 74HCT164DB,112?
The operating temperature range is from -40 °C to +125 °C.
- Does the 74HCT164DB,112 have ESD protection?
Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What package types are available for the 74HCT164DB,112?
The device is available in a 14-SSOP (SOT337-1) package.
- Is the 74HCT164DB,112 compliant with any industry standards?
Yes, it complies with JEDEC standards (JESD8C and JESD7A).
- What is the purpose of the master reset (MR) input?
The master reset input clears the register and sets all outputs to LOW.
