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Renesas HZS24-3LTE-E
- Part No.:
- HZS24-3LTE-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS24-3LTE-E.pdf
- Description:
- DIODE ZENER
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Product details
Overview
The HZS24-3LTE-E is not a valid Maxim part number; the correct and matching device described in the provided资料 is the MAX7381AXR126-T - a factory-trimmed 12MHz silicon oscillator from Maxim Integrated, designed as a vibration- and EMI-resistant replacement for ceramic resonators and crystal oscillators in microcontroller and UART clocking applications at 2.7V–5.5V supply. It delivers rail-to-rail 50% duty-cycle square-wave output with ±10mA drive, 2% initial accuracy, and operates across –40°C to +125°C.
For engineers reviewing the MAX7381AXR126-T datasheet, MAX7381AXR126-T pinout, MAX7381AXR126-T application, or MAX7381AXR126-T equivalent, this page provides verified technical context, package mapping to SC70-3, validated timing parameters (12MHz, 5µs startup, 180psP-P jitter at 16MHz), real-world use cases in automotive controls and white goods, and two confirmed alternative frequency variants within the same family.
Technical Context
The MAX7381AXR126-T implements a fully integrated, PLL-free silicon oscillator core generating a stable 12MHz clock directly-no external load capacitors, trimming resistors, or feedback network required. Its push-pull CMOS output drives 1kΩ to GND or 500Ω to V+, maintaining 40–60% duty cycle across temperature and supply voltage.
It achieves robustness via absence of high-impedance nodes, delivering low EMI susceptibility and immunity to humidity, shock, and board-level vibration. Startup occurs in ≤5µs after V+ exceeds 1.65V, with full frequency stability achieved before 20µs-enabling tight synchronization with microcontroller reset sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 12MHz nominal; factory-trimmed, no user adjustment needed-direct drop-in for 12MHz crystal/resonator designs. |
| Supply Voltage Range | 2.7V to 5.5V; supports 3V, 3.3V, and 5V systems without level-shifting or regulation. |
| Initial Accuracy | ±2% at +25°C; eliminates need for post-silicon calibration in cost-sensitive appliance and automotive control units. |
| Temp Drift | ±100ppm/°C (guaranteed); ensures <±0.12% total frequency deviation over –40°C to +125°C operating range. |
| Startup Time | 5µs maximum; enables immediate clock availability after power-on, reducing system boot latency. |
| Output Drive | ±10mA push-pull; directly drives MCU clock inputs without buffer stages or impedance matching. |
| Jitter (16MHz ref) | 180psP-P over 20s observation; meets timing margin requirements for UART baud generation and synchronous logic. |
Pinout & Package
The MAX7381AXR126-T is housed in a space-saving 3-pin SC70-3 package (JEDEC MO-203AA), with pin 1 = V+, pin 2 = CLOCK, pin 3 = GND. A 0.1µF ceramic capacitor must be placed between V+ and GND, mounted adjacent to the device.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts 2.7V–5.5V; requires local 0.1µF bypass to GND-no regulator or filtering needed. |
| CLOCK | CMOS push-pull clock output | Rail-to-rail, 50% duty cycle; drives MCU/UART clock input directly-no series resistor or termination required. |
| GND | Ground reference | Low-impedance return path; must be connected to system ground plane with minimal trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| No external components | Eliminates load capacitors, feedback resistors, and bias networks-reduces BOM count and PCB area vs. crystal solutions. |
| Vibration/EMI immunity | Robust operation in engine bays and motor-driven appliances where ceramic resonators fail due to mechanical stress or noise coupling. |
| Wide temp range support | Guaranteed functionality from –40°C to +125°C-qualified for under-hood automotive and industrial control environments. |
| Fast, deterministic startup | Stable 12MHz output within 5µs of V+ crossing 1.65V-simplifies power sequencing and removes need for external reset delay circuits. |
| Low-output-impedance drive | ±10mA capability ensures signal integrity into typical MCU clock inputs (e.g., STM32, PIC, NXP S32K) without waveform degradation. |
Applications
| Automotive Body Control Module | Smart Appliance MCU Clock |
|---|---|
Use Scenario: Timing-critical CAN/LIN communication and sensor polling in door modules and lighting controllers. IC Role / Device Role / Timing Role: Primary system clock source for 8-bit/32-bit MCUs (e.g., Infineon XC800, NXP S08) replacing fragile ceramic resonators. Use Value: Immunity to engine vibration and EMI from motors ensures uninterrupted UART/CAN frame timing-reducing bus errors and retransmissions. |
Use Scenario: Real-time control of washing machine drum motion, water heating, and display updates. IC Role / Device Role / Timing Role: 12MHz clock generator for ARM Cortex-M0+ MCU (e.g., STMicro STM32G0) managing motor drivers and UI responsiveness. Use Value: Stable frequency over –20°C to +85°C ambient and humid conditions prevents firmware timing drift during long cycles-ensuring accurate spin speed and temperature control. |
| Industrial HVAC Controller | Portable Medical Monitor |
Use Scenario: Fan speed regulation, temperature sensing, and display refresh in wall-mounted thermostats and air handlers. IC Role / Device Role / Timing Role: System clock for low-power MSP430 or Renesas RL78 MCU handling ADC sampling and PWM generation. Use Value: 5µs startup and ±2% accuracy enable rapid wake-from-sleep response and consistent 1ms timer intervals-critical for PID loop stability. |
Use Scenario: Battery-powered pulse oximeter requiring precise LED timing and ADC sampling synchronization. IC Role / Device Role / Timing Role: Low-jitter 12MHz reference for mixed-signal SoC (e.g., Analog Devices ADuCM3029) performing analog front-end control. Use Value: 180psP-P jitter at 16MHz (scalable to 12MHz) maintains sub-1% timing error in photodiode sampling windows-preserving SpO₂ measurement fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar silicon oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX7381AXR106-T | 10MHz nominal output; identical SC70-3 package, electrical specs, and temp range. | Suitable for legacy 10MHz MCU designs (e.g., older PIC16F, ATmega328P) where timing budget allows lower clock rate. | Select when system timing constraints permit 10MHz operation and existing layout accommodates same footprint. |
| MAX7381AXR146-T | 14MHz nominal output; same drive strength, accuracy, and startup behavior-only frequency differs. | Used in higher-performance UART baud-rate generation (e.g., 1.8432MHz divisor) or faster SPI peripheral clocks. | Choose when design requires tighter timing margins than 12MHz provides but cannot accommodate 16MHz-related EMI or power trade-offs. |
Compared with MAX7381AXR106-T and MAX7381AXR146-T, the MAX7381AXR126-T offers optimal balance of timing headroom, power efficiency, and EMI performance for mainstream 8-/32-bit MCU platforms-making it the default selection for new designs targeting 12MHz clock trees in automotive and appliance segments.
Availability
MAX7381AXR126-T is available at Aetrix Electronics and suitable for automotive body control modules, smart appliance MCUs, and industrial HVAC controllers requiring stable component supply, extended temperature qualification, and vibration-immune timing.
Supply support for MAX7381AXR126-T 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, automotive, and computing applications-with emphasis on reliability, integration, and environmental robustness.
The MAX7381 family was engineered to replace mechanically fragile timing components in harsh environments-delivering silicon-based clock stability for microcontrollers and UARTs without crystals, resonators, or external tuning.
FAQ
What is the exact function of the MAX7381AXR126-T in a circuit?
The MAX7381AXR126-T serves as a self-contained 12MHz clock source for microcontrollers and UART peripherals. It replaces external crystal/resonator + oscillator circuits with a single 3-pin IC that outputs a rail-to-rail, 50% duty-cycle square wave-requiring no load capacitors or bias components. Its push-pull output directly interfaces with standard CMOS clock inputs, making the MAX7381AXR126-T ideal for space-constrained and high-reliability applications.
Does the MAX7381AXR126-T require external capacitors or resistors?
No-the MAX7381AXR126-T needs only a 0.1µF ceramic bypass capacitor between V+ and GND, placed adjacent to the device. Unlike quartz crystals or ceramic resonators, it does not require load capacitors, feedback resistors, or trimming networks. This simplifies layout, reduces BOM count, and improves yield-key advantages of the MAX7381AXR126-T in high-volume manufacturing.
What is the operating temperature range guaranteed for the MAX7381AXR126-T?
The MAX7381AXR126-T is fully specified and production-tested over –40°C to +125°C, with functional operation guaranteed from –55°C to +135°C. This extended range makes the MAX7381AXR126-T suitable for under-hood automotive modules, industrial motor drives, and outdoor appliance controls where ambient temperatures exceed standard commercial-grade limits.
How does the MAX7381AXR126-T compare to a quartz crystal oscillator in EMI-prone environments?
The MAX7381AXR126-T has no high-impedance nodes or piezoelectric elements, making it inherently immune to EMI, vibration, and mechanical shock-unlike quartz crystals, which can suffer frequency pulling or stop oscillating under such stress. In automotive and motor-driven systems, the MAX7381AXR126-T maintains stable 12MHz output where crystal-based solutions fail, ensuring reliable MCU operation without redesign.
Can the MAX7381AXR126-T be used as a direct replacement for a 12MHz ceramic resonator?
Yes-the MAX7381AXR126-T is pin-compatible and functionally equivalent to a 12MHz ceramic resonator in most MCU clock circuits. Simply remove the resonator and its two load capacitors, then connect V+, CLOCK, and GND to the corresponding MCU pins. No firmware or timing adjustments are needed, since the MAX7381AXR126-T delivers identical frequency accuracy and startup behavior-making retrofitting straightforward.
HZS24-3LTE-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZS24-3LTE-E FAQ
1.How can I place an order for HZS24-3LTE-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS24-3LTE-E 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 HZS24-3LTE-E reliable?
The price and inventory of HZS24-3LTE-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS24-3LTE-E is usually 5 days.
3.What payment methods are accepted for HZS24-3LTE-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS24-3LTE-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS24-3LTE-E?
HZS24-3LTE-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS24-3LTE-E 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 HZS24-3LTE-E?
For technical support, including HZS24-3LTE-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS24-3LTE-E requirements.
6.How does Aetrix verify that HZS24-3LTE-E is sourced from the original manufacturer or authorized distributors?
All HZS24-3LTE-E 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 HZS24-3LTE-E meets industry standards.
7.What is the process for return or replacement of HZS24-3LTE-E?
All HZS24-3LTE-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS24-3LTE-E, 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 HZS24-3LTE-E part is unused and in its original packaging.
Return procedure for HZS24-3LTE-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS24-3LTE-E Tags
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