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Diodes Incorporated 74HC164T14-13
- Part No.:
- 74HC164T14-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Shift Registers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC164T14-13.pdf
- Description:
- IC 8BIT SERIAL SHIFT REG 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
74HC164T14-13 from Diodes Incorporated is an 8-bit serial-in/parallel-out shift register with asynchronous master reset, positive-edge clock triggering, dual ANDed serial inputs (DSA/DSB), and Schmitt-trigger inputs. It operates from 2.0V to 6.0V, sinks/sources 4mA at 4.5V, and delivers propagation delay as low as 12ns at 6.0V - used in LED matrix drivers and I/O expansion for microcontrollers.
For engineers reviewing the 74HC164T14-13 datasheet, 74HC164T14-13 pinout, 74HC164T14-13 application, or 74HC164T14-13 equivalent, key selection criteria include setup/hold timing (tSU = 10ns, tH = 4ns @6V), maximum clock frequency (85MHz @6V), output drive capability (4mA sink/source), asynchronous MR behavior, and TSSOP-14 package thermal and layout constraints.
Technical Context
The 74HC164T14-13 implements a synchronous 8-stage shift register with edge-triggered clock (CP) and fully asynchronous master reset (MR). Data enters Q0 on each rising CP edge only when DSA and DSB are both HIGH; otherwise, the ANDed input suppresses shifting.
Its Schmitt-trigger inputs enable robust noise immunity on serial and control lines, while the dual serial inputs allow flexible enable/data gating - one pin acts as data path, the other as active-HIGH enable, or both tied together for single-input operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 6.0V - supports mixed-voltage logic interfacing and battery-powered systems down to 2V. |
| Max Clock Frequency | 85MHz at VCC = 6.0V - enables high-speed serial-to-parallel conversion in real-time display or communication interfaces. |
| Output Drive | ±4mA at VCC = 4.5V - sufficient to directly drive LEDs or interface with standard CMOS/TTL loads without external buffers. |
| Propagation Delay | 12ns (CP to Qn, typ.) at 6.0V - ensures tight timing margins in cascaded shift register chains or time-critical control paths. |
| Setup/Hold Time | tSU = 10ns, tH = 4ns at 6.0V - defines minimum data stability window before/after CP rising edge for reliable sampling. |
| ESD Protection | HBM: 2kV, CDM: 1kV - meets industrial handling requirements and reduces need for external protection in board-level ESD zones. |
Pinout & Package
TSSOP-14 package: 4.9mm × 4.4mm body, 0.65mm pitch, 1.0mm max height - optimized for space-constrained PCBs with moderate thermal dissipation (PTOT = 500mW).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DSA) | Serial Data Input A | One of two ANDed inputs; must be HIGH with DSB to enable data transfer into Q0 on CP rising edge. |
| 2 (DSB) | Serial Data Input B | Second ANDed input; allows hardware gating - e.g., DSB tied HIGH to use DSA as sole data line. |
| 3 (Q0) | Stage 0 Output | First shifted bit; feeds Q1 on next CP edge - critical for cascade connection or feedback timing loops. |
| 8 (CP) | Clock Pulse Input | Positive-edge triggered; all internal shifts and Q0 loading occur synchronously on rising edge. |
| 9 (MR) | Master Reset | Asynchronous active-LOW reset - forces all Q0–Q7 LOW regardless of CP or data state; requires recovery time before next CP. |
| 14 (VCC) | Supply Voltage | Primary power rail; decoupling capacitor placement near this pin is essential for stable high-frequency operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual ANDed Serial Inputs | Enables hardware-selectable data enable: DSB can serve as active-HIGH gate while DSA carries serial stream - eliminates need for external logic. |
| Schmitt-Trigger Inputs | Provides >0.8V hysteresis on DSA, DSB, CP, and MR - rejects noise on long traces or unshielded cables in industrial environments. |
| Asynchronous Master Reset | MR overrides clock and data; resets all outputs within tPHL ≤11ns (6V) - guarantees known state at power-up or fault recovery. |
| Wide-Voltage Operation | 2.0V–6.0V supply range allows direct interface with 3.3V MCUs and 5V peripherals without level shifters. |
Applications
| LED Matrix Driver | Microcontroller I/O Expander |
|---|---|
Use Scenario: Driving 8-segment alphanumeric displays or 8×8 monochrome LED grids using serial data from an MCU with limited GPIO. IC Role / Device Role / Timing Role: Converts SPI-like serial stream into parallel 8-bit output; CP synchronizes column scanning; MR clears display on startup. Use Value: Reduces MCU pin count by 7 (vs. direct parallel drive); Schmitt inputs tolerate noisy PCB routing; 4mA drive supports common-anode LED configurations. |
Use Scenario: Adding digital outputs to an ARM Cortex-M0+ with only 2 spare GPIOs for SPI clock and data. IC Role / Device Role / Timing Role: Acts as serial-to-parallel bridge; CP provides timing reference; DSA/DSB AND logic allows software-controlled enable/disable of output updates. Use Value: Enables 8-bit output expansion with no additional control lines; wide VCC range matches MCU core voltage (3.3V) or I/O voltage (5V). |
| Industrial Control Panel | Legacy Peripheral Interface |
Use Scenario: Controlling relay banks or status indicators in DIN-rail mounted PLC modules where ESD resilience and wide temperature range are mandatory. IC Role / Device Role / Timing Role: Shift register stage in distributed I/O subsystem; MR linked to system watchdog timeout for fail-safe output reset. Use Value: HBM 2kV ESD rating withstands field maintenance; -40°C to +125°C operating range supports uncooled enclosures; TSSOP-14 footprint saves board area vs. PDIP. |
Use Scenario: Interfacing modern microcontrollers to legacy parallel-bus peripherals (e.g., dot-matrix printers, older LCD controllers) requiring serialized command loading. IC Role / Device Role / Timing Role: Bridges UART/SPI to parallel bus; CP derived from MCU timer; MR ensures clean initialization before first command burst. Use Value: Propagation delay ≤12ns ensures setup compliance with 10MHz peripheral buses; 6.0V tolerance accommodates 5V legacy logic levels. |
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 |
|---|---|---|---|
| SN74HC164N | PDIP-14 package; identical logic and AC specs but higher thermal resistance (θJA ≈ 70°C/W vs. TSSOP's 120°C/W) and larger footprint. | Preferred for prototyping or through-hole assembly; unsuitable for high-density SMT layouts. | Select when hand-soldering or breadboarding is required; avoid in thermally constrained or space-limited designs. |
| 74HC595PW | Includes output latch (storage register) and 3-state outputs; requires separate latch clock (RCLK); no MR pin - reset via serial clear or software. | Used where output hold during serial load is needed (e.g., glitch-free display updates); lacks hardware reset. | Choose when simultaneous output update or bus-sharing is required; not drop-in for MR-dependent safety-critical reset. |
Compared with SN74HC164N and 74HC595PW, the 74HC164T14-13 offers superior board-area efficiency and thermal performance in SMT production, while retaining true asynchronous reset - making it optimal for compact, reliability-critical I/O expansion where deterministic initialization is mandatory.
Availability
74HC164T14-13 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller I/O expansion, industrial control panels, and legacy peripheral interfaces requiring stable component supply across automotive-grade temperature ranges and high-volume manufacturing cycles.
Supply support for 74HC164T14-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.
The 74HC164 belongs to Diodes' HC logic family - designed for low-power, wide-supply-voltage operation in cost-sensitive, space-constrained applications where noise immunity and timing predictability are essential.
FAQ
Can the 74HC164T14-13 operate reliably at 2.0V supply?
Yes - the device is fully specified from 2.0V to 6.0V. At 2.0V, it maintains guaranteed functionality with fMAX ≥6MHz, tPD ≤170ns, and VIH/VIL thresholds scaled accordingly (VIH = 1.5V min). This enables compatibility with ultra-low-power microcontrollers and battery-backed systems.
What happens if DSA and DSB are left floating?
Unused inputs must not float: per datasheet Note 9, they must be tied to VCC or GND. Floating DSA/DSB risks metastability, increased ICC, or unintended shifting due to noise coupling - especially critical in high-noise industrial environments.
Is the MR pin truly asynchronous, and does it affect CP timing?
Yes - MR is fully asynchronous and forces all Q outputs LOW immediately, independent of CP state. However, the datasheet specifies a minimum MR recovery time (trec = 10ns @6V) before the next CP rising edge to ensure internal state stabilization - violating this may cause metastable outputs.
How does the TSSOP-14 package impact thermal design?
The TSSOP-14 has θJA ≈ 120°C/W (JEDEC standard board). At 500mW max power, junction temperature rise is ~60°C above ambient - requiring adequate copper pour, airflow, or derating above 70°C ambient. Thermal vias under the exposed pad (if present) are not applicable - this variant uses standard TSSOP without thermal pad.
74HC164T14-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74HC
- 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:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74HC164T14-13 FAQ
1.How can I place an order for 74HC164T14-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC164T14-13 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 74HC164T14-13 reliable?
The price and inventory of 74HC164T14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC164T14-13 is usually 5 days.
3.What payment methods are accepted for 74HC164T14-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC164T14-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC164T14-13?
74HC164T14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC164T14-13 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 74HC164T14-13?
For technical support, including 74HC164T14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC164T14-13 requirements.
6.How does Aetrix verify that 74HC164T14-13 is sourced from the original manufacturer or authorized distributors?
All 74HC164T14-13 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 74HC164T14-13 meets industry standards.
7.What is the process for return or replacement of 74HC164T14-13?
All 74HC164T14-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC164T14-13, 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 74HC164T14-13 part is unused and in its original packaging.
Return procedure for 74HC164T14-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC164T14-13 Tags
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SN74HC164DR
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74HC165D,653
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SN74LV165APWR
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74HC595BQ,115
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74HC165BQ,115
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CD4094BPWR
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