My Inquiry
My Account
NXP Semiconductors 74HC164DB,118
- Part No.:
- 74HC164DB,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Shift Registers
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HC164DB,118.pdf
- Description:
- NOW NEXPERIA 74HC164DB - SERIAL
- Quantity:
- Payment:
- Shipping:
Inventory:126,947
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HC164DB,118 from Nexperia is an 8-bit serial-in/parallel-out CMOS shift register in SO14 (SOT108-1) package, featuring dual gated serial inputs (DSA/DSB), asynchronous active-LOW master reset (MR), and edge-triggered clock (CP) operating from 2.0 V to 6.0 V. It delivers 8 parallel outputs (Q0–Q7) with propagation delay as low as 12 ns at VCC = 6.0 V and supports industrial temperature range (−40 °C to +125 °C). Used for LED matrix expansion, GPIO port extension, and serial-to-parallel data conversion in embedded control systems.
For engineers reviewing the 74HC164DB,118 datasheet, 74HC164DB,118 pinout, 74HC164DB,118 application, or 74HC164DB,118 equivalent, this page provides verified functional behavior, SO14 pin mapping, timing constraints (tsu = 2 ns, th = +4 ns at VCC = 6.0 V), static voltage thresholds (VIH = 4.2 V, VIL = 1.8 V), and validated alternatives for serial interface logic design.
Technical Context
The device implements an 8-stage D-type flip-flop chain with synchronous serial loading and asynchronous reset. Data shifts on LOW-to-HIGH CP transitions, with DSA and DSB acting as mutually enabling serial inputs - one serves as data path while the other acts as active-HIGH gate enable. The MR input forces all Q outputs LOW independently of clock or data state.
Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Static characteristics are specified across −40 °C to +125 °C, with VIH/VIL levels compliant to CMOS thresholds (not TTL), and output drive capability of ±4.0 mA at VCC = 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with gated dual data inputs and asynchronous reset |
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V logic domains without level translation |
| Propagation Delay (tpd) | 12 ns (max) at VCC = 6.0 V - supports clock frequencies up to 85 MHz in high-speed serial data pipelines |
| Input Thresholds (VIH/VIL) | VIH = 4.2 V, VIL = 1.8 V at VCC = 6.0 V - ensures noise margin >1.2 V under worst-case conditions |
| Output Drive Strength | ±4.0 mA at VCC = 4.5 V - sufficient to directly drive LEDs or standard CMOS inputs without buffering |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor controllers |
| ESD Protection | HBM >2000 V, CDM >1000 V - reduces need for external protection in board-level ESD-prone environments |
Pinout & Package
74HC164DB,118 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm pitch, gull-wing leads. Pin 1 index located at top-left corner with notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DSA) | Serial data input A | Primary serial data path; enabled only when DSB = HIGH - used for daisy-chained data forwarding |
| 2 (DSB) | Serial data input B | Gate-enable input for DSA; when HIGH, allows DSA data to enter; when LOW, blocks DSA regardless of value |
| 3–6, 10–13 (Q0–Q7) | Parallel output terminals | Q0 is LSB, Q7 is MSB; outputs retain state between clocks; no internal pull-ups - external termination required |
| 7 (GND) | Ground reference | 0 V return path for all internal logic and I/O; must be low-impedance connection to minimize ground bounce |
| 8 (CP) | Clock input | Edge-triggered on LOW-to-HIGH transition; requires clean rise time ≤6 ns for reliable operation at max frequency |
| 9 (MR) | Master reset | Asynchronous active-LOW signal; clears all Q outputs to LOW immediately, overriding clock and data |
| 14 (VCC) | Positive supply | Power rail for internal logic and output drivers; decoupling capacitor (100 nF) required within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual gated serial inputs | DSA and DSB provide hardware-selectable data path control - eliminates need for external AND gates in multi-source serial systems |
| Asynchronous master reset | MR forces Q0–Q7 LOW independent of CP timing - enables deterministic initialization during power-up or fault recovery |
| Wide supply voltage range | 2.0 V to 6.0 V operation allows single part to serve both 3.3 V microcontrollers and legacy 5 V peripherals |
| Clamp diode protected inputs | Enables safe interfacing to signals up to VCC + 0.5 V using series resistors - simplifies mixed-voltage system integration |
| High noise immunity | CMOS input structure with >40 % VCC noise margin at VCC = 4.5 V - resists EMI in motor drive and industrial PLC environments |
Applications
| LED Display Driver | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 8-segment alphanumeric displays or 8×8 LED matrices in consumer electronics and instrumentation panels. IC Role / Device Role / Timing Role: Serial-to-parallel converter translating SPI or bit-banged UART data into parallel column/row activation signals. Use Value: Reduces MCU pin count by 7 (vs. direct parallel drive); enables brightness control via PWM on CP or MR lines. |
Use Scenario: Extending digital I/O capability of resource-constrained MCUs (e.g., STM32F0, PIC16) in HVAC controllers and smart sensors. IC Role / Device Role / Timing Role: Synchronous peripheral providing additional output latches controlled by a single clock and two data lines. Use Value: Adds 8 robust, glitch-free outputs with <12 ns skew; supports hot-plug detection via MR assertion. |
| Industrial Serial Bus Interface | Test Fixture Signal Generator |
|
Use Scenario: Converting RS-485 or CAN bus serial commands into parallel control bits for relay banks or solenoid drivers in factory automation. IC Role / Device Role / Timing Role: Protocol-agnostic shift register synchronizing to isolated UART clock edges in electrically noisy plant-floor environments. Use Value: Tolerates >2000 V HBM ESD events on data lines; operates reliably at 125 °C ambient near motor drives. |
Use Scenario: Generating precise, repeatable stimulus patterns for IC functional testing and PCB boundary-scan validation. IC Role / Device Role / Timing Role: Pattern generator core clocked by test system's master clock, with MR enabling deterministic pattern restart. Use Value: Achieves 85 MHz pattern rate with sub-nanosecond setup/hold margins; supports automated test script synchronization via MR pulse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit serial-in/parallel-out shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC164D,118 | Same die, identical SO14 package and electrical specs; differs only in tape-and-reel packaging code (DB vs D) | No functional difference; D variant is standard reel format, DB is optimized for high-speed pick-and-place | Select 74HC164D,118 for manual prototyping or low-volume assembly; 74HC164DB,118 preferred for SMT production lines |
| SN74HC164N | DIP-14 package, wider body (6.35 mm), higher thermal resistance (120 K/W), rated only to +70 °C | Limited to lab bench use or non-temperature-critical applications; incompatible with automated SMT placement | Choose SN74HC164N only for through-hole breadboarding or legacy repair; not suitable for new industrial designs |
Compared with 74HC164DB,118, the 74HC164D,118 offers identical performance in a functionally interchangeable reel format, while SN74HC164N sacrifices thermal robustness and SMT compatibility for through-hole convenience - making the DB variant optimal for volume production in harsh environments.
Availability
74HC164DB,118 is available at Aetrix Electronics and suitable for LED display driver circuits, microcontroller GPIO expansion, industrial serial bus interfaces, and automated test fixture signal generation requiring stable component supply across extended temperature ranges.
Supply support for 74HC164DB,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial and automotive markets.
The 74HC164DB,118 belongs to Nexperia's HC-series high-speed CMOS logic family, designed specifically for low-power, noise-immune serial interface expansion in space- and thermal-constrained embedded systems.
FAQ
What is the maximum clock frequency supported by 74HC164DB,118?
The 74HC164DB,118 supports a maximum clock frequency of 85 MHz at VCC = 6.0 V and CL = 15 pF, with typical propagation delay of 12 ns. At VCC = 4.5 V, fmax drops to 71 MHz. These values assume clean clock edges (tr/tf ≤ 6 ns) and proper load capacitance management per the datasheet test circuit.
Can DSA and DSB be used simultaneously for data input?
No - DSA and DSB are logically AND-gated: data enters only when one input is HIGH (acting as enable) and the other carries the data bit. Simultaneous HIGH on both inputs results in logic HIGH at the first stage, but violates the functional table's defined operating modes and may cause metastability. Use only one as data, the other as gate.
Is 74HC164DB,118 pin-compatible with 74HCT164DB,118?
Yes - both share identical SO14 pinout and terminal functions. However, 74HCT164DB,118 uses TTL-compatible input thresholds (VIH = 2.0 V min), while 74HC164DB,118 requires CMOS thresholds (VIH = 4.2 V at VCC = 6.0 V). Interchange requires verifying source logic family voltage levels.
Does the MR pin require a pull-up resistor in normal operation?
Yes - MR is active-LOW and internally unconnected. A 10 kΩ pull-up to VCC is required to hold the register operational; absence causes permanent reset. During intentional reset, drive MR to GND via open-drain or push-pull output with <10 ns fall time to ensure full clearing before next CP edge.
74HC164DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Shift Register
- Output Type:
- Push-Pull
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Serial to Parallel
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
74HC164DB,118 FAQ
1.How can I place an order for 74HC164DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC164DB,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74HC164DB,118 reliable?
The price and inventory of 74HC164DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC164DB,118 is usually 5 days.
3.What payment methods are accepted for 74HC164DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC164DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC164DB,118?
74HC164DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC164DB,118 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74HC164DB,118?
For technical support, including 74HC164DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC164DB,118 requirements.
6.How does Aetrix verify that 74HC164DB,118 is sourced from the original manufacturer or authorized distributors?
All 74HC164DB,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HC164DB,118 meets industry standards.
7.What is the process for return or replacement of 74HC164DB,118?
All 74HC164DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC164DB,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74HC164DB,118 part is unused and in its original packaging.
Return procedure for 74HC164DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC164DB,118 Tags
-
SN74HC164DR
Texas Instruments
-
SN74HC595DR
Texas Instruments
-
74HC595PW,118
Nexperia USA Inc.
-
SN74HC165PWR
Texas Instruments
-
HEF4094BT,653
Nexperia USA Inc.
-
74HC595D,118
Nexperia USA Inc.
-
SN74HC595PWR
Texas Instruments
-
74HC165D,653
Nexperia USA Inc.
-
SN74LV165APWR
Texas Instruments
-
74HC595BQ,115
Nexperia USA Inc.
-
74HC165BQ,115
Nexperia USA Inc.
-
CD4094BPWR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
