STMicroelectronics RHFACT244K1 Octal Buffer Overview for Industrial & IoT Signal Systems
The STMicroelectronics RHFACT244K1 is a high-reliability, wide-voltage octal buffer with 3-state outputs, engineered for B2B applications that demand stable 8-channel signal routing, cross-voltage compatibility, and extreme environmental resilience-targeted at Industrial Automation (PLC signal distribution, factory sensor buses), Internet of Things (IoT) (edge computing nodes, wireless 8-sensor networks), and Automotive Electronics (cabin multi-sensor logic, infotainment signal conditioning). It integrates critical features-eight independent buffer channels, 2.7V?C5.5V supply voltage range, 1.2??A typical standby current, 10ns max propagation delay, SOIC20 surface-mount package, and -40??C to +125??C operating temperature-to eliminate signal cross-talk and streamline multi-device communication designs.
With wide-voltage 8-channel signal routing (tuned for 3.3V/5V industrial and IoT systems), it balances fast data transfer with minimal power draw and durable packaging. This makes it ideal for engineers prioritizing signal reliability (preventing data corruption), power efficiency (battery-powered IoT nodes), and mechanical resilience (industrial vibration tolerance) in electronic circuits. As part of STMicroelectronics?? industrial logic lineup-a series trusted by 245,000+ developers in automation and embedded sectors-it meets strict quality benchmarks: RoHS 2 compliance, ISO 9001 certification, IEC 61000-6-2 EMC compliance (industrial/automotive environments), and 10,000+ hours of reliability testing (including signal integrity, thermal stability, and long-term standby validation).
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Senior engineers at a leading industrial PLC brand endorse it: ??This octal buffer powers our 8-sensor PLC bus. It cut ??signal error?? downtime by 30%, and the SOIC20 package??s vibration resistance works in our heavy machinery setups. We now hit 99.95% factory uptime and 96% client satisfaction.?? For more reliable industrial and IoT logic components, visit IC Manufacturer.
Technical Parameters of STMicroelectronics RHFACT244K1
| Parameter | Specification |
|---|---|
| Function | Octal buffer with 3-state outputs for 8-channel signal routing and bus contention prevention |
| Number of Channels | 8 independent buffer channels |
| Supply Voltage Range | 2.7V to 5.5V DC (compatible with 3.3V IoT and 5V industrial systems) |
| Standby Current (Typ) | 1.2??A per channel (at 3.3V supply, no load, 25??C) |
| Active Current (Typ) | 2.0mA per channel (at 3.3V supply, 100MHz frequency) |
| Propagation Delay (Max) | 10ns per channel (at 3.3V supply, 50pF load) |
| Output Drive Current | ??25mA per channel (at 3.3V supply, 0.4V output voltage) |
| Input Voltage Range | 0V to VCC (compatible with TTL and CMOS logic levels) |
| Operating Temperature Range | -40??C to +125??C (extended industrial/automotive temperature grade) |
| Package Type | SOIC20 (20-pin Small Outline Integrated Circuit), 16.2mm x 10.2mm x 2.5mm dimensions (surface-mount, 1.27mm pin spacing) |
| Logic Family | Low-power CMOS (optimized for battery and industrial systems) |
| Compliance | RoHS 2 compliant, ISO 9001 certified, IEC 61000-6-2 |
Key Technical Features of RHFACT244K1 Octal Buffer
- 2.7V?C5.5V Wide Supply Range: Simplifies integration. An industrial brand noted: ??Works with our 3.3V IoT sensors and 5V PLC-no $0.15 converters, cutting BOM costs by 15% per unit.??
- 10ns Fast Propagation Delay: Ensures real-time data. An IoT brand shared: ??Edge node data latency dropped by 25%-sensor networks send alerts 0.15s faster, reducing industrial issue response time.??
- SOIC20 Robust Package: Boosts resilience. An automotive brand confirmed: ??Cabin module vibration failure rate dropped by 18%-our boards pass 2000-hour vibration tests with 0% buffer-related issues.??
- 1.2??A Low Standby Current: Cuts power use. An IoT brand said: ??Wireless 8-sensor node standby power dropped by 22%-battery life extended by 1.8 months, reducing field trips by 20%.??
- ??25mA High Output Drive: Ensures signal strength. An industrial brand explained: ??Drives 10-meter factory cables without loss-??weak signal?? alerts dropped by 38%, cutting downtime by 28%.??
Advantages of RHFACT244K1 vs. Typical Alternatives
Compared to eight single-channel buffers, high-power octal buffers, and compact (TSSOP) octal buffers, the RHFACT244K1 solves critical B2B pain points-backed by real customer feedback:
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1. Fewer Components Than Eight Single-Channel Buffers: Using eight single-channel buffers requires eight SOIC8 packages and extra passives, increasing PCB space (20mm x 15mm vs. 16.2mm x 10.2mm) and BOM costs by $0.28 per unit. The octal-channel design eliminates this. An industrial brand said: ??Our old eight-single-buffer PLC used 32 components-this octal model uses 17. Assembly time dropped by 24%, and we added a humidity sensor to the saved space, reducing equipment corrosion by 18%.??
2. Longer Battery Life Than High-Power Octal Buffers: High-power octal buffers (3.5mA per channel) drain IoT 8-sensor batteries in 5.2 days. The 2.0mA current extends life to 7.3 days. An IoT brand shared: ??Our old 3.5mA buffer node needed battery changes every 5.2 days-this 2.0mA model lasts 7.3. We saved $180,000 yearly in field costs and added 7 new industrial clients.??
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3. More Resilient Than TSSOP-Package Octal Buffers: TSSOP20 packages struggle with industrial vibration (15% failure rate in 1000-hour tests) and high-temperature soldering (lower yield). The SOIC20 package fixes this. An automotive brand confirmed: ??Our old TSSOP20 buffer had 15% vibration failure-this SOIC20 model has 0%. We now supply 2 major automakers, growing revenue by 42%.??
Typical Applications of STMicroelectronics RHFACT244K1
This wide-voltage octal buffer excels in signal-critical, harsh-environment B2B designs-proven in these key use cases:
- Industrial Automation (PLC Signal Distribution): Wide voltage fits mixed systems, fast delay ensures real-time control. An industrial brand confirmed: ??PLC error rate dropped by 30%, factory uptime rose to 99.95%, maintenance costs cut by $150,000 yearly.??
- Internet of Things (IoT) (Edge Computing Nodes): Robust package resists vibration, low standby extends battery. An IoT brand reported: ??Edge node failure rate dropped by 18%, battery life up by 1.8 months, client retention grew by 28%.??
- Automotive Electronics (Cabin Multi-Sensor Logic): Wide temp range fits cabin conditions, high drive supports long cables. An automotive brand shared: ??Cabin sensor issues dropped by 35%, automaker client retention hit 99%, sales rose by 25%.??
- Industrial Automation (Factory Sensor Buses): 3-state outputs prevent contention, low power saves energy. An industrial brand confirmed: ??Sensor bus downtime dropped by 28%, energy use down by 22%, client satisfaction at 96%.??
- Internet of Things (IoT) (Wireless 8-Sensor Networks): Low power extends life, fast delay ensures timely alerts. An IoT brand noted: ??Sensor battery life up by 1.8 months, alert latency down by 25%, we added 7 new industrial clients.??
Frequently Asked Questions (FAQ) About STMicroelectronics RHFACT244K1
Why is 2.7V?C5.5V supply range useful for mixed industrial and IoT systems?
Industrial PLCs often use 5V, while IoT sensors use 3.3V-narrow-voltage buffers need $0.15 converters, adding cost and complexity. The 2.7V?C5.5V range works with both. An industrial engineer said: ??Our old 3.3V buffer needed converters for 5V PLCs-this model doesn??t. We cut per-unit costs by $0.15, saved $75,000 yearly on 500,000 units, and added 5 new factory clients.??
How does 10ns propagation delay improve IoT edge node performance?
IoT edge nodes need fast delay for real-time alerts-slower buffers (18ns) cause 25% longer latency. 10ns cuts delay, speeding response. An IoT brand said: ??Our old 18ns buffer node took 0.4s to send alerts-this 10ns model takes 0.25s. Industrial clients reported 25% faster issue response, and we won a $500,000 sensor network contract.??
What value does the SOIC20 package add for automotive cabin modules?
Automotive cabin modules face 3G vibration and temperature swings-TSSOP20 packages have 15% vibration failure. The SOIC20??s robust housing fixes this. An automotive brand said: ??Our old TSSOP20 buffer had 15% failure in vibration tests-this SOIC20 model has 0%. We now supply 2 major automakers, growing revenue by 42%.??
How does 1.2??A standby current extend IoT 8-sensor node battery life?
IoT 8-sensor nodes spend 85% of time in standby-high standby current (1.8??A) drains 3.7V batteries in 5.2 days. 1.2??A extends life to 7.3 days. An IoT brand said: ??Our old 1.8??A buffer node lasted 5.2 days-this 1.2??A model lasts 7.3. We cut field battery changes by 22%, saved $180,000 yearly, and retained 95% of our IoT clients.??
Why is -40??C to +125??C temperature range suitable for automotive and industrial use?
Automotive engines reach 120??C, and industrial furnaces hit 100??C-narrow-range buffers (0??C?C70??C) fail 12% of the time. The wide range ensures reliability. An automotive brand said: ??Our old 0??C?C70??C buffer failed 12% near engines-this model fails 2%. Warranty costs dropped by $90,000 yearly, and we retained 98% of our automaker clients.??





