5L35023B-105NLGI
5L35023B-105NLGI - Programmable Clock Generator | Renesas
The Renesas Electronics 5L35023B-105NLGI is a VersaClock 3S programmable clock generator for low-power, consumer, and high-performance PCI Express applications. It uses a quartz crystal input and generates programmable clock outputs, while its OE pins can be configured as output enable, power-down, proactive power saving, dynamic frequency control, or reset functions. The device is available in the package designation represented by 5L35023B-105NLGI; exact package dimensions, pin names, frequency limits, voltage ratings, and electrical limits are not stated in the supplied verified records.
A programmable clock generator is a timing IC that converts a reference input into one or more controlled output frequencies. It belongs to the clock and timing hierarchy, alongside clock generators, PLLs, frequency synthesizers, oscillators, and timing controllers. This category is important in digital systems because processors, serializers, communication links, memory interfaces, and PCI Express equipment require clocks with defined frequency, phase, and enable behavior.
The verified Renesas product page identifies the 5L35023 as a VersaClock programmable clock generator. The verified datasheet search result states that specifications are characterized and guaranteed using a quartz crystal input. It also states that an LVPECL driver change requires selecting the appropriate R3 value. The same datasheet result identifies programmable OE-pin functions, allowing integration of output enable, chip power-down, proactive power saving, two-pin dynamic frequency control, and timer-associated reset functionality.
The B-105NLGI ordering suffix distinguishes this exact Renesas orderable MPN from related 5L35023 variants. Because the supplied records do not expose a complete parameter table or package drawing, pin-level implementation, output frequency range, supply voltage, output format, operating temperature, and package dimensions remain to be confirmed from the manufacturer datasheet before layout or production release. The nearby 5L35023-105NLGI DigiKey result confirms that the broader 5L35023 family is sold as an integrated circuit, but it does not establish equivalence to the B-105NLGI suffix.
Typical use cases include PCI Express clock distribution, low-power consumer electronics, embedded computing, communication equipment, and other systems requiring programmable timing. In a PCI Express design, the clock generator should be selected only after confirming reference frequency, output standard, jitter, supply voltage, configuration method, reset requirements, and package compatibility. In consumer or embedded systems, power-down and output-enable behavior can help control clock activity when the system is idle.
Designers should begin with the crystal and load-capacitance requirements, then verify every datasheet limit and pin function. Decoupling should follow the manufacturer reference circuit, and PCB routing should preserve controlled-impedance clock paths and minimize noise coupling into sensitive analog or RF sections. Before purchasing or substituting the part, request the official Renesas datasheet and confirm the exact B-105NLGI ordering code.
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