Texas Instruments
TI SN74HC595ADBR - High-Reliability 8-Bit Shift Register with Tri-State Output Buffers
Logic ICs · Texas Instruments
MPNSN74HC595ADBR
Industrial Temperature Range (-40°C to +85°C) for harsh environment operation Higher Output Drive Capacity (±6mA at 5V) vs basic 74HC logic family Robust ESD Protection (2000V HBM) for improved field reliability
- Base Product Number
- 74HC595
- Supply Voltage Range
- 2.0–6.0V
- Max Clock Frequency (@5V)
- 25MHz (SN74HC595ADBR) vs. 20MHz (Standard)
- Output Drive Current
- ±6mA (ADBR) vs. ±4mA
- Propagation Delay
- 13ns (ADBR) vs. 18ns
- ESD Protection (HBM)
- 2000V (ADBR) vs. 1000V
- Professional sourcingVetted supply chain with documented traceability
- Genuine partsDocumented traceability on every shipment
- ESD-safe handlingOriginal packaging, moisture controlled
- Worldwide shippingConsolidated freight to 100+ countries
Specifications
Core ratings and package details for this logic ics (SN74HC595ADBR). Use the table below when comparing drop-in options or validating a schematic callout.
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Base Product Number | 74HC595 | Operating Temp. Range | -40°C to +85°C (ADBR) vs. 0°C to +70°C |
| Supply Voltage Range | 2.0–6.0V | Part Number | Temp Range Max Freq Drive Key Differentiator |
| Max Clock Frequency (@5V) | 25MHz (SN74HC595ADBR) vs. 20MHz (Standard) | SN74HC595ADBR | -40°C+85°C 25MHz ±6mA Industrial reliability |
| Output Drive Current | ±6mA (ADBR) vs. ±4mA | SN74HC595DBR | 0°C+70°C 20MHz ±4mA Standard commercial |
| Propagation Delay | 13ns (ADBR) vs. 18ns | CD74HC595 | -55°C+125°C 15MHz ±4mA Military qualified |
| ESD Protection (HBM) | 2000V (ADBR) vs. 1000V | Variant | Package Max Freq. (MHz) Output Drive (mA) ESD (V) Temp. Range (°C) Best For |
Product Overview
A closer look at SN74HC595ADBR as a logic ics: functional summary, usage notes, and the features that matter in real designs.
- Industrial Temperature Range (-40°C to +85°C) for harsh environment operation
- Higher Output Drive Capacity (±6mA at 5V) vs basic 74HC logic family
- Robust ESD Protection (2000V HBM) for improved field reliability
SN74HC595ADBR Shift Register - Enhanced Version of Classic 74HC595 Optimized for Industrial & Harsh Environments
The SN74HC595ADBR IC from Texas Instruments represents the premium industrial-grade variant of the ubiquitous 74HC595 shift register. Designed for mission-critical applications where reliability is paramount, this enhanced version features:- TI's proprietary HC process technology optimized for noise immunity
- Wider operating voltage range (2V to 6V) compatible with 3.3V/5V systems
- 3-state output buffers with bus hold circuitry to prevent floating inputs
Technical Specifications
| Parameter | Specification |
|---|---|
| Base Product Number | 74HC595 |
| Supply Voltage Range | 2.0–6.0V |
| Max Clock Frequency (@5V) | 25MHz (SN74HC595ADBR) vs. 20MHz (Standard) |
| Output Drive Current | ±6mA (ADBR) vs. ±4mA |
| Propagation Delay | 13ns (ADBR) vs. 18ns |
| ESD Protection (HBM) | 2000V (ADBR) vs. 1000V |
| Operating Temp. Range | -40°C to +85°C (ADBR) vs. 0°C to +70°C |
- Performance Boost:
- The SN74HC595ADBR offers 25% faster clock speed (25MHz vs. 20MHz) and 33% lower propagation delay (13ns vs. 18ns).
- Robustness:
- 2× better ESD protection (2000V vs. 1000V) and wider temperature range (-40°C to +85°C).
- Drive Strength:
- 50% higher output current (±6mA vs. ±4mA), enabling better load driving capability.
Applications
1. Industrial Control Systems
- Motor control panels - Daisy-chain multiple units to drive dozens of relays/indicators
- PLC I/O expansion - Add digital outputs without microcontroller pin constraints
- HMI interfaces - Multiplex LEDs/keypads in hazardous locations
2. Automotive Electronics
- Cluster displays - Drive segment LCDs with minimal wiring
- Body control modules - Window/lock actuator control
- EV battery monitoring - Cell voltage indicator arrays
3. Medical Equipment
- Patient monitoring - Multiplex status LEDs on portable devices
- Diagnostic systems - Parallel data buffering for sensor arrays
- Therapy devices - Safe output isolation via tri-state control
Functional Deep Dive
Enhanced Architecture
Compared to the standard SN74HC595:- Reinforced Output Stage
- Dual-diode clamps on all outputs
- Current-limited drivers prevent damage during short circuits
- Improved Clock Tree
- Lower skew between SRCLK and RCLK paths
- Schmitt trigger inputs for noisy environments
- Manufacturing Enhancements
- 100% production testing at temperature extremes
- Burn-in sampling for high-reliability applications
Typical Performance Curves
(Reference datasheet 0900766b812cd41f.pdf, section 6.9)- Propagation delay vs Vcc - Maintains <15ns across full voltage range
- ICC vs Temperature - Leakage current remains <100µA at 85°C
Comparison to Similar Devices
| Part Number | Temp Range | Max Freq | Drive | Key Differentiator |
|---|---|---|---|---|
| SN74HC595ADBR | -40°C+85°C | 25MHz | ±6mA | Industrial reliability |
| SN74HC595DBR | 0°C+70°C | 20MHz | ±4mA | Standard commercial |
| CD74HC595 | -55°C+125°C | 15MHz | ±4mA | Military qualified |
- For cost-sensitive designs → SN74HC595DBR
- Extreme environments → CD74HC595
- Optimal balance → SN74HC595ADBR
Key Variants Breakdown
| Variant | Package | Max Freq. (MHz) | Output Drive (mA) | ESD (V) | Temp. Range (°C) | Best For |
|---|---|---|---|---|---|---|
| SN74HC595N (Legacy DIP) | PDIP-16 | 20 @5V | ±4 | 1000 | 0 to +70 | Prototyping |
| SN74HC595D (Standard) | SOIC-16 | 20 @5V | ±4 | 1000 | 0 to +70 | Cost-sensitive PCBs |
| SN74HC595PW (Compact) | TSSOP-16 | 20 @5V | ±6 | 2000 | -40 to +85 | Dense PCB designs |
| SN74HC595ADBR (Enhanced) | SSOP-16 | 25 @5V | ±6 | 2000 | -40 to +85 | Industrial/high-speed apps |
| SN74HC595BQAR (Automotive) | QFN-16 | 29 @5V | ±6 | 2000 | -40 to +125 | Automotive/harsh env. |
Summary of Key Differences
- Speed:
- Standard variants (N/D/PW): 20MHz
- Enhanced (ADBR): 25MHz
- Automotive (BQAR): 29MHz (fastest)
- Drive Strength:
- Most variants: ±4mA (except ADBR/PW/BQAR at ±6mA)
- Robustness:
- ESD Protection: 1000V (standard) vs. 2000V (ADBR/PW/BQAR)
- Temp Range:
- Standard: 0°C–70°C
- Industrial: -40°C–85°C
- Automotive: -40°C–125°C
- Package Size:
- Largest: PDIP-19.3mm (SN74HC595N)
- Smallest: QFN-4x4mm (SN74HC595BQAR)
Recommendations by Use Case
| Application | Best Variant | Reason |
|---|---|---|
| Prototyping | SN74HC595N (PDIP) | Hand-solderable |
| Consumer Electronics | SN74HC595D (SOIC-16) | Low-cost, balanced performance |
| High-Density PCBs | SN74HC595PW (TSSOP) | Compact, ±6mA drive |
| Industrial Control | SN74HC595ADBR (SSOP) | 25MHz, 2000V ESD |
| Automotive (CAN/LIN) | SN74HC595BQAR (QFN) | 29MHz, 125°C rating |
Design Considerations
Robust Implementation Tips
- Power Sequencing
- Always apply Vcc before input signals (per TI app report SCBA004)
- Use 0.1µF MLCC at each Vcc pin
- Signal Integrity
- Route SER/SRCLK as differential pair >10mm from noisy traces
- Terminate QH' with 100Ω when cascading >4 devices
- Thermal Management
- SSOP-16 package θJA=73°C/W
- Derate output current at >60°C ambient
Failure Mode Analysis
Common field issues and TI-recommended solutions:| Symptom | Root Cause | Fix |
|---|---|---|
| Output glitches | Vcc dip during switching | Add bulk 10µF capacitor |
| Data corruption | Clock ringovers | Series 33Ω resistors on clock lines |
Ordering & Compliance
Packaging Options
| Package | Quantity | MOQ | Lead Time |
|---|---|---|---|
| Tape & Reel (2500) | Full reels | 1 | Stock |
| Cut Tape (100) | Partial reels | 10 | 2 weeks |
- AEC-Q100 Grade 2 pending (planned Q2 2025)
- Current certifications: IEC 61000-4-2 Level 4
Support Resources
Conclusion
The SN74HC595ADBR delivers military-grade reliability in a cost-effective SSOP package, combining the familiarity of the 74HC595 architecture with Texas Instruments' automotive/industrial qualification expertise. Its ability to maintain signal integrity in electrically noisy environments makes it particularly valuable for:- Industrial: Factory automation, motor drives
- Transportation: EV charging stations, fleet telematics
- Medical: Portable diagnostic equipment
- Radiation test data (for space applications)
- Custom test flow requests
- Failure analysis reports
Design Resources
Tutorial and application reading tied to SN74HC595ADBR. These are editorial guides on this site, not manufacturer PDFs.
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Frequently Asked Questions
Short answers for sourcing SN74HC595ADBR from Texas Instruments: what to confirm before you place the order.
What is SN74HC595ADBR?
Industrial Temperature Range (-40°C to +85°C) for harsh environment operation Higher Output Drive Capacity (±6mA at 5V) vs basic 74HC logic family Robust ESD Protection (2000V HBM) for improved field reliability
What type of component is SN74HC595ADBR?
SN74HC595ADBR is a Logic ICs from Texas Instruments.
What are equivalents or related parts for SN74HC595ADBR?
Related or alternative MPNs listed for SN74HC595ADBR include SN74HC595DBR, CD74HC595SM96. Compare package, ratings, and lifecycle status before substituting.
What are the key specifications of SN74HC595ADBR?
Base Product Number: 74HC595; Supply Voltage Range: 2.0–6.0V; Max Clock Frequency (@5V): 25MHz (SN74HC595ADBR) vs. 20MHz (Standard); Output Drive Current: ±6mA (ADBR) vs. ±4mA; Propagation Delay: 13ns (ADBR) vs. 18ns.
Is SN74HC595ADBR in stock at MOZ Electronics?
SN74HC595ADBR is listed as in stock. Order online when a price is shown, or submit an RFQ for volume pricing and lead time.
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