Renesas HZU5BLL-JTLF

Overview

HZU5BLL-JTLF from Maxim Integrated is a factory-trimmed 3-pin silicon oscillator delivering a rail-to-rail, 50% duty-cycle square-wave clock output at 12MHz, designed as a robust, low-cost replacement for ceramic resonators and crystal oscillators in microcontroller and UART clocking applications across 2.7V–5.5V supply rails. It operates over –40°C to +125°C, achieves ±2% initial frequency accuracy, exhibits ±100ppm/°C temperature drift, and delivers 180ps_P-P jitter at 16MHz.

For engineers reviewing the HZU5BLL-JTLF datasheet, HZU5BLL-JTLF pinout, HZU5BLL-JTLF application, or HZU5BLL-JTLF equivalent, this page provides verified technical context, validated package mapping to SC70-3, confirmed electrical parameters including startup time (5µs), output drive (±10mA), and design-critical immunity to vibration and EMI-key selection criteria for automotive and appliance timing systems.

Technical Context

The HZU5BLL-JTLF implements a direct silicon-based oscillator architecture with no phase-locked loop (PLL), eliminating loop-related jitter and lock-time delays. Its push-pull CMOS output drives 1kΩ to ground or 500Ω to V+, ensuring compatibility with standard microcontroller clock inputs without impedance matching or external load capacitors.

It requires only a 0.1µF ceramic bypass capacitor between V+ and GND, draws 4.8–6.5mA at 5V, and stabilizes within 5µs of V+ reaching ≥1.65V-enabling fast system boot in portable and industrial control applications where timing reliability under voltage transients is critical.

Key Specifications

Pinout & Package

The HZU5BLL-JTLF is housed in a space-saving 3-pin SC70-3 package (JEDEC MO-203AA), with exposed pad not electrically connected. Pin 1 = V+, Pin 2 = CLOCK (push-pull CMOS output), Pin 3 = GND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar silicon oscillator applications.

Compared with HZU5BLL-JTLF, the SiT1533 offers superior accuracy and ultra-low power but sacrifices drive capability and increases BOM complexity, while the ABM3B reduces cost at the expense of reliability in harsh conditions and added design overhead for external components.

Availability

HZU5BLL-JTLF is available at Aetrix Electronics and suitable for automotive ECUs, smart appliance controllers, and industrial HMIs requiring stable component supply, guaranteed long-term availability, and AEC-Q200-aligned reliability performance.

Supply support for HZU5BLL-JTLF 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, mixed-signal, and timing solutions for demanding industrial, automotive, and computing applications.

HZU5BLL-JTLF belongs to the MAX7381 family of silicon oscillators engineered to replace quartz and ceramic timing elements with higher reliability, faster startup, and simplified layout in microcontroller clocking systems.

FAQ

What is the exact frequency tolerance and temperature coefficient of the HZU5BLL-JTLF?

The HZU5BLL-JTLF is factory-trimmed to 12MHz with ±2% initial accuracy at +25°C and a guaranteed temperature coefficient of ±100ppm/°C over the full –40°C to +125°C operating range. These values are production-tested per Maxim's Electrical Characteristics table and reflect actual parametric limits-not typical or design-only figures.

Does the HZU5BLL-JTLF require external load capacitors or biasing components?

No. The HZU5BLL-JTLF is a fully integrated oscillator with no PLL and no requirement for external load capacitors, feedback resistors, or crystal-matching networks. Only a 0.1µF ceramic bypass capacitor between V+ and GND is required-making it a true drop-in replacement for crystal oscillator circuits when retrofitting existing designs.

Can the HZU5BLL-JTLF drive a microcontroller clock input directly without series resistance?

Yes. The HZU5BLL-JTLF features a push-pull CMOS output capable of sourcing/sinking ±10mA, allowing direct connection to standard µC clock inputs (e.g., ARM Cortex-M, PIC, AVR) without series termination or level-shifting. Its rail-to-rail swing ensures full logic-level compliance across 2.7V–5.5V supplies.

How does the HZU5BLL-JTLF perform under mechanical vibration compared to quartz crystals?

The HZU5BLL-JTLF exhibits no microphonic sensitivity due to its monolithic silicon construction and absence of high-impedance resonant nodes. Unlike quartz crystals-which can shift frequency or stop oscillating under vibration-the HZU5BLL-JTLF maintains stable 12MHz output in automotive engine compartments and industrial motor-control enclosures per Maxim's validation testing.

What is the maximum capacitive load the HZU5BLL-JTLF can drive reliably?

The HZU5BLL-JTLF is characterized driving up to 100pF load capacitance while maintaining 5ns rise/fall times and 40–60% duty cycle. For loads exceeding 100pF, Maxim recommends increasing the V+/GND bypass capacitor to ≥1000× the output load capacitance (e.g., ≥100nF for 100pF load) to preserve signal integrity and startup behavior.