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onsemi NLV74HC595ADTR2G
- Part No.:
- NLV74HC595ADTR2G
- Manufacturer:
- onsemi
- Category:
- Shift Registers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
NLV74HC595ADTR2G.pdf
- Description:
- IC SHIFT REGISTER 8BIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,371
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Product details
Overview
NLV74HC595ADTR2G from onsemi is an 8-bit serial-input/serial-or-parallel-output shift register with latched 3-state outputs, designed for SPI interface expansion in microcontroller systems. It features independent shift and latch clocks, asynchronous reset, and operates from 2.0 V to 6.0 V. Its 3-state parallel outputs (QA–QH) and serial output (SQH) enable cascaded LED or display driver configurations in industrial control panels.
For engineers reviewing the NLV74HC595ADTR2G datasheet, pinout, applications, or equivalent options, key selection criteria include its 6.0 V max supply, 35 ns propagation delay at 4.5 V, 3-state output enable control, and TSSOP-16 package compatibility with space-constrained PCB layouts.
Technical Context
The NLV74HC595ADTR2G integrates an 8-bit shift register and an 8-bit D-type latch with separate clock domains: Shift Clock (Pin 11) controls serial data loading, while Latch Clock (Pin 12) transfers register contents to outputs. Reset (Pin 10) is asynchronous and active-low, clearing only the shift register without affecting the latch.
Its Output Enable (Pin 13) provides active-low 3-state control over QA–QH outputs, while SQH (Pin 9) delivers non-inverting serial output unaffected by OE. Input compatibility includes standard CMOS logic levels, and it supports direct connection to MCU SPI ports without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - Enables operation across battery-powered (3.3 V) and legacy 5 V systems without external regulators. |
| Max Clock Frequency | 35 MHz at VCC = 6.0 V - Supports high-speed serial data chaining in real-time I/O expansion applications. |
| Propagation Delay | 24 ns (Latch Clock to QA–QH, VCC = 6.0 V) - Ensures tight timing alignment for synchronized multi-device output updates. |
| Output Drive | ±35 mA per pin - Sufficient to directly drive LEDs or small-signal logic without external buffers. |
| Input Leakage Current | ±1.0 µA max at 6.0 V - Minimizes power loss in low-power sleep modes and improves noise immunity. |
| Operating Temperature | –55 °C to +125 °C - Qualified for under-hood automotive and industrial environments with wide thermal cycling. |
Pinout & Package
TSSOP-16 package (Case 948F), 4.4 mm × 5.0 mm footprint, 0.65 mm pitch, lead-free (Pb-free) and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A (14) | Serial Data Input | Accepts LSB-first serial data from MCU SPI MOSI or GPIO; shifted into register on rising edge of Shift Clock. |
| SHIFT CLOCK (11) | Shift Register Clock | Rising-edge-triggered clock that advances data through the 8-bit shift register; independent of latch timing. |
| RESET (10) | Asynchronous Reset | Active-low signal clears shift register contents to zero; latch register and outputs remain unaffected. |
| LATCH CLOCK (12) | Latch Register Clock | Rising-edge-triggered clock that copies current shift register state to the output latch for stable parallel output. |
| OUTPUT ENABLE (13) | 3-State Output Control | Active-low signal enables/disables QA–QH outputs; high state forces outputs to high-impedance, preserving bus integrity. |
| QA–QH (15,1–7) | Latched Parallel Outputs | Non-inverting, 3-state outputs driven from latch register; individually controllable via OE for multiplexing or isolation. |
| SQH (9) | Serial Output | Non-inverting output of final shift register stage; used for daisy-chaining multiple NLV74HC595ADTR2G devices. |
| VCC (16) | Positive Supply | Primary power rail (2.0–6.0 V); decoupling capacitor required near pin for noise suppression. |
| GND (8) | Ground Reference | Return path for all internal logic and output drivers; must be low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Independent shift/latch clocks | Enables pipelined operation: new data can be loaded into shift register while previous data remains latched and stable on outputs. |
| Asynchronous shift register reset | Allows deterministic initialization of serial chain without disturbing latched output states or requiring full system reset. |
| 3-state parallel outputs with OE control | Permits shared bus architectures and dynamic output disabling during reconfiguration or fault conditions. |
| High noise immunity CMOS design | Guarantees reliable operation in electrically noisy industrial environments with >40% VCC noise margin at 5 V. |
| Pb-free, RoHS-compliant TSSOP-16 | Meets global environmental compliance requirements and supports lead-free reflow soldering profiles (JEDEC J-STD-020). |
Applications
| LED Matrix Driver | Industrial I/O Expander |
|---|---|
Use Scenario: Driving 8×8 monochrome LED matrix in factory HMI panel with limited MCU GPIO. IC Role / Device Role / Timing Role: Serial-to-parallel converter providing 8-bit parallel output synchronized to latch clock for row/column scanning. Use Value: Reduces MCU GPIO usage from 16 pins to 3 (data, shift clock, latch clock) while maintaining full brightness control via PWM-compatible outputs. | Use Scenario: Adding digital input/output capability to PLC base unit using existing SPI interface. IC Role / Device Role / Timing Role: SPI slave device extending discrete I/O count; shift register accepts command bytes, latch clock validates inputs/outputs. Use Value: Enables hot-plug-compatible I/O expansion with no firmware changes to host controller-only SPI transaction updates. |
| Sensor Data Aggregator | Automotive Dashboard Indicator |
Use Scenario: Consolidating status signals from 8 temperature sensors in HVAC control module. IC Role / Device Role / Timing Role: Parallel input capture device where sensor outputs are sampled and latched synchronously for MCU readback. Use Value: Eliminates need for 8 separate ADC channels or polling delays; single SPI read retrieves all 8 sensor states atomically. | Use Scenario: Controlling 8 warning lamp indicators (e.g., oil pressure, brake, ABS) in vehicle instrument cluster. IC Role / Device Role / Timing Role: Fault-tolerant output driver with independent OE control allowing lamp test mode (all off) without MCU intervention. Use Value: Meets AEC-Q100 Grade 1 requirements (-40 °C to +125 °C) and supports diagnostic self-test via OE assertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC595DT | Same logic function and pinout; TI version rated for 2.0–6.0 V, but max fmax = 25 MHz at 6 V (vs. 35 MHz for NLV74HC595ADTR2G). | Lower max clock speed limits daisy-chain depth in high-throughput LED refresh systems. | Select when TI supply chain preference exists and timing budget allows ≥10 MHz margin. |
| 74AHC595PW,118 | NXP variant with identical TSSOP-16 package and 3-state outputs; higher drive strength (±8 mA @ VCC = 3.3 V) but narrower VCC range (2.0–5.5 V). | Not suitable for 6 V legacy industrial rails; better for low-voltage portable designs with tighter drive requirements. | Choose for 3.3 V battery-powered systems needing faster edge rates and lower capacitive loading. |
Compared with SN74HC595DT and 74AHC595PW,118, the NLV74HC595ADTR2G delivers highest clock frequency (35 MHz) and widest supply range (2.0–6.0 V), making it optimal for automotive and industrial applications demanding both speed and voltage flexibility.
Availability
NLV74HC595ADTR2G is available at Aetrix Electronics and suitable for LED display drivers, industrial I/O expanders, and automotive dashboard indicator systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NLV74HC595ADTR2G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The NLV74HC595ADTR2G belongs to onsemi's HC logic family, engineered for high-noise-immunity, low-power operation in harsh environments-specifically targeting cost-sensitive, reliability-critical applications like automotive body electronics and factory automation controllers.
FAQ
What is the maximum operating voltage for NLV74HC595ADTR2G?
The NLV74HC595ADTR2G supports a DC supply voltage range of 2.0 V to 6.0 V. Its absolute maximum rating is +6.5 V, but sustained operation above 6.0 V risks parametric degradation and is not guaranteed per datasheet specifications. For robust long-term performance in industrial applications, operation at 5.0 V or 3.3 V is recommended.
Does NLV74HC595ADTR2G support daisy-chaining with other shift registers?
Yes, NLV74HC595ADTR2G supports daisy-chaining via its SQH (serial output) pin, which connects directly to the A (serial input) pin of the next device. This enables scalable I/O expansion-for example, three NLV74HC595ADTR2G devices provide 24 parallel outputs using only four MCU pins (clock, latch, data, OE). Propagation delay stacking is accounted for in timing analysis.
Can NLV74HC595ADTR2G drive LEDs directly without current-limiting resistors?
No, NLV74HC595ADTR2G cannot safely drive LEDs without external current-limiting resistors. While its outputs support ±35 mA per pin, continuous DC current above 6 mA per output exceeds recommended operating conditions and risks thermal overstress. Each QA–QH output requires a series resistor sized for target LED forward voltage and desired current (e.g., 10 mA at 5 V).
Is NLV74HC595ADTR2G qualified for automotive applications?
Yes, the NLV74HC595ADTR2G is AEC-Q100 qualified (Grade 1: –40 °C to +125 °C) and PPAP-capable. Its "NLV" prefix denotes enhanced automotive-grade screening, including extended temperature validation and process controls aligned with automotive quality standards-making it suitable for dashboard indicators, body control modules, and ADAS subsystems.
What is the function of the RESET pin on NLV74HC595ADTR2G?
The RESET pin (Pin 10) is an asynchronous, active-low input that clears the 8-bit shift register to logic low (0x00) without affecting the latch register or QA–QH outputs. This allows deterministic initialization of serial data flow-e.g., resetting a daisy chain before loading new frame data-while preserving currently displayed output states until the next LATCH CLOCK pulse.
NLV74HC595ADTR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Shift Register
- Output Type:
- Tri-State
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Serial to Parallel, Serial
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
NLV74HC595ADTR2G FAQ
1.How can I place an order for NLV74HC595ADTR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NLV74HC595ADTR2G 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 NLV74HC595ADTR2G reliable?
The price and inventory of NLV74HC595ADTR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NLV74HC595ADTR2G is usually 5 days.
3.What payment methods are accepted for NLV74HC595ADTR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NLV74HC595ADTR2G transactions.
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4.How is shipping managed for NLV74HC595ADTR2G?
NLV74HC595ADTR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NLV74HC595ADTR2G 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 NLV74HC595ADTR2G?
For technical support, including NLV74HC595ADTR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NLV74HC595ADTR2G requirements.
6.How does Aetrix verify that NLV74HC595ADTR2G is sourced from the original manufacturer or authorized distributors?
All NLV74HC595ADTR2G 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 NLV74HC595ADTR2G meets industry standards.
7.What is the process for return or replacement of NLV74HC595ADTR2G?
All NLV74HC595ADTR2G units undergo pre-shipment inspection (PSI). If there is an issue with NLV74HC595ADTR2G, 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 NLV74HC595ADTR2G part is unused and in its original packaging.
Return procedure for NLV74HC595ADTR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NLV74HC595ADTR2G Tags
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