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Nexperia USA Inc. 74HCT164PW,118
- Part No.:
- 74HCT164PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT164PW,118.pdf
- Description:
- IC SHIFT REG 8BIT SI-PO 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:373
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Product details
Overview
74HCT164PW,118 from Nexperia is an 8-bit serial-in/parallel-out shift register with TTL-compatible inputs, dual gated serial data inputs (DSA and DSB), asynchronous master reset (MR), and edge-triggered clock (CP) operating on LOW-to-HIGH transitions. It delivers Q0–Q7 parallel outputs, supports 4.5 V to 5.5 V supply, operates from –40 °C to +125 °C, and is used in LED matrix drivers, GPIO expansion, and serial-to-parallel data conversion in industrial control panels.
For engineers reviewing the 74HCT164PW,118 datasheet, 74HCT164PW,118 pinout, 74HCT164PW,118 application, or 74HCT164PW,118 equivalent, this device is selected for robust serial data latching in noise-prone environments, where TTL-level input compatibility, guaranteed reset behavior, and TSSOP14 thermal performance are critical design requirements.
Technical Context
The 74HCT164PW,118 implements a synchronous 8-stage D-type flip-flop chain with gated serial input logic: either DSA or DSB acts as an active-HIGH enable for the other, enabling flexible data routing. Its asynchronous MR overrides all clocked operations, forcing Q0–Q7 LOW independently of CP state.
It uses standard CMOS silicon with TTL input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5 V–5.5 V), ensuring interoperability with legacy 5 V logic families. Propagation delay from CP to Qn is 17 ns (typ) at VCC = 4.5 V, supporting up to 55 MHz maximum clock frequency under CL = 15 pF conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-compatible input thresholds, CMOS output drive, 5 V nominal operation |
| Supply Voltage Range | 4.5 V to 5.5 V - Ensures stable operation across industrial 5 V rails with ±5 % tolerance |
| Operating Temperature | –40 °C to +125 °C - Qualified for extended-temperature industrial and automotive-adjacent applications |
| Propagation Delay (CP→Qn) | 17 ns (typ) at VCC = 4.5 V, CL = 50 pF - Enables reliable timing in high-speed serial interface chains |
| Output Drive Strength | ±4.0 mA (VOH/VOL) at VCC = 4.5 V - Sufficient to directly drive LEDs or feed CMOS/TTL inputs without buffering |
| Input Clamp Diodes | Integrated - Allows safe interfacing to voltages exceeding VCC when used with current-limiting resistors |
| Power Dissipation Capacitance | 40 pF - Used to calculate dynamic power: PD = CPD × VCC² × fi × N |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1); 14-lead, 4.4 mm body width, 0.65 mm pitch; exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DSA) | Serial data input A | Gated by DSB: active only when DSB = HIGH; enables selective serial data routing |
| 2 (DSB) | Serial data input B | Gated by DSA: active only when DSA = HIGH; provides dual-input flexibility for daisy-chaining or multiplexed streams |
| 3–6, 10–13 (Q0–Q7) | Parallel output terminals | Q0 shifts first; Q7 is MSB; all outputs are buffered CMOS with rail-to-rail swing |
| 7 (GND) | Ground reference | Primary return path for supply and signal currents; must be low-impedance for noise immunity |
| 8 (CP) | Clock input | Edge-triggered on LOW-to-HIGH transition; no internal debouncing - external filtering required if noisy |
| 9 (MR) | Master reset | Asynchronous, active-LOW; forces all Qn = LOW regardless of CP or data state |
| 14 (VCC) | Positive supply | Must be decoupled locally (e.g., 100 nF ceramic) adjacent to pin to suppress switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Dual gated serial inputs | DSA and DSB function as mutual enables - eliminates need for external AND gates in multi-source serial paths |
| Asynchronous master reset | MR clears all 8 bits independently of clock timing - essential for deterministic startup and fault recovery |
| TTL-compatible input thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V - ensures direct connection to 5 V microcontroller UART/GPIO without level shifters |
| Input clamp diodes | Enable overvoltage-tolerant interfacing (e.g., 12 V control signals) using series current-limiting resistors |
| JEDEC-compliant packaging | SOT402-1 (TSSOP14) meets MO-153 mechanical standards - compatible with automated SMT placement and reflow profiles |
Applications
| LED Display Driver | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving 8-segment common-cathode LED displays in HVAC control panels with limited MCU I/O. IC Role / Device Role / Timing Role: Serial-to-parallel converter that accepts UART-shifted data and presents static segment outputs synchronized to CP. Use Value: Reduces MCU pin count by 7 (vs. direct drive), eliminates software bit-banging, and provides glitch-free output updates via MR-controlled initialization. |
Use Scenario: Adding 8 digital outputs to an STM32F4-based PLC module where native GPIOs are exhausted. IC Role / Device Role / Timing Role: Parallel output latch controlled by SPI MOSI/CLK, with MR tied to system reset for known initial state. Use Value: Enables deterministic I/O expansion without firmware overhead; TTL inputs accept direct SPI levels; TSSOP14 footprint saves PCB area vs. SO14. |
| Industrial Serial Data Buffer | Legacy Bus Interface Adapter |
Use Scenario: Buffering RS-485-modulated serial telemetry before parallel distribution to analog monitoring circuits. IC Role / Device Role / Timing Role: Synchronizing asynchronous serial stream into aligned byte-wide parallel format for ADC/DAC control registers. Use Value: Provides setup/hold time margin (tsu = 12 ns, th = +4 ns) against jittery bus clocks; MR ensures clean buffer reset after communication errors. |
Use Scenario: Interfacing 8-bit parallel address/data buses from vintage 8051-based instrumentation to modern FPGA controllers. IC Role / Device Role / Timing Role: Level-shifting and serialization bridge: parallel reads converted to serial packets for FPGA-side parsing. Use Value: TTL input compatibility matches 8051 output specs; 125 °C rating supports operation near heat-generating analog sections; compact TSSOP eases retrofit into legacy board layouts. |
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 |
|---|---|---|---|
| 74HC164PW,118 | CMOS input thresholds (VIH = 3.15 V min @ VCC = 4.5 V); wider 2.0–6.0 V supply range | Better suited for mixed-voltage systems (e.g., 3.3 V MCU driving 5 V peripherals) but requires level translation when interfacing to TTL sources | Select when supply flexibility or ultra-low ICC (< 8 μA) at 25 °C is prioritized over TTL compatibility |
| SN74LV164APW | 3.3 V optimized (1.65–5.5 V), lower CP→Qn delay (10 ns typ @ VCC = 3.3 V), LVCMOS inputs | Designed for 3.3 V domains; lacks true TTL input compatibility; not rated for 125 °C operation | Prefer for new 3.3 V designs requiring faster timing and lower power, where industrial temperature range is not mandatory |
Compared with 74HC164PW,118 and SN74LV164APW, the 74HCT164PW,118 uniquely balances TTL input compatibility, extended temperature support, and TSSOP14 density - making it the optimal choice for upgrading legacy 5 V systems without redesigning level-shifting networks.
Availability
74HCT164PW,118 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller GPIO expansion, industrial serial data buffering, and legacy bus interface adapters requiring stable component supply across extended temperature ranges.
Supply support for 74HCT164PW,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, reliable discrete, logic, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.
The 74HCT164 forms part of Nexperia's industry-standard 74-series logic portfolio, engineered for interoperability with legacy 5 V TTL systems while maintaining CMOS power efficiency and robustness in industrial environments.
FAQ
Can 74HCT164PW,118 operate reliably at 3.3 V supply?
No - the 74HCT164PW,118 is specified only for 4.5 V to 5.5 V operation per its recommended conditions. At 3.3 V, VIH and VIL thresholds fall outside guaranteed switching margins, risking metastability or failure to recognize logic levels. For 3.3 V systems, use the pin-compatible 74LV164A or 74LVC164A instead.
What is the minimum pulse width required on the MR pin to ensure reliable reset?
The MR pin requires a minimum LOW pulse width of 10 ns (typ) at VCC = 4.5 V, with 15 ns guaranteed across –40 °C to +125 °C. This ensures full propagation through all eight internal flip-flops. Shorter pulses may result in partial or failed reset, especially under worst-case voltage/temperature conditions.
How does the dual-input gating (DSA/DSB) affect data loading behavior?
Data enters only when one input is HIGH (enabling gate) and the other carries the data bit. If both DSA and DSB are HIGH, the input is indeterminate; if both are LOW, no data shifts. This allows hardware-selectable data source routing without external logic - for example, DSB = HIGH selects DSA as data path, while DSA = HIGH selects DSB.
Is the exposed thermal pad on the TSSOP14 package electrically connected?
No - the exposed pad on SOT402-1 (TSSOP14) is not electrically connected to any internal node. Per Nexperia documentation, it has no electrical or mechanical requirement to be soldered. If soldered, it must remain floating or be connected to GND to avoid unintended coupling or thermal stress.
74HCT164PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74HCT164PW,118 FAQ
1.How can I place an order for 74HCT164PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT164PW,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 74HCT164PW,118 reliable?
The price and inventory of 74HCT164PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT164PW,118 is usually 5 days.
3.What payment methods are accepted for 74HCT164PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT164PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT164PW,118?
74HCT164PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT164PW,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 74HCT164PW,118?
For technical support, including 74HCT164PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT164PW,118 requirements.
6.How does Aetrix verify that 74HCT164PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT164PW,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 74HCT164PW,118 meets industry standards.
7.What is the process for return or replacement of 74HCT164PW,118?
All 74HCT164PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT164PW,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 74HCT164PW,118 part is unused and in its original packaging.
Return procedure for 74HCT164PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT164PW,118 Tags
-
SN74HC164DR
Texas Instruments
-
SN74HC595DR
Texas Instruments
-
74HC595PW,118
Nexperia USA Inc.
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SN74HC165PWR
Texas Instruments
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HEF4094BT,653
Nexperia USA Inc.
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74HC595D,118
Nexperia USA Inc.
-
SN74HC595PWR
Texas Instruments
-
74HC165D,653
Nexperia USA Inc.
-
SN74LV165APWR
Texas Instruments
-
74HC595BQ,115
Nexperia USA Inc.
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74HC165BQ,115
Nexperia USA Inc.
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CD4094BPWR
Texas Instruments
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