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74VHC373TTR - Octal D-Type Latch, 3-State, TSSOP-20 | STMicroelectronics
74VHC373TTR

74VHC373TTR - Octal D-Type Latch, 3-State, TSSOP-20 | STMicroelectronics

The STMicroelectronics 74VHC373TTR is an advanced high-speed CMOS octal D-type transparent latch with 3-state outputs, housed in a 20-pin TSSOP package delivered on Tape & Reel (suffix "TR"). According to the manufacturer datasheet, it features a typical propagation delay of 5.0 ns at VCC = 5 V, a maximum quiescent supply current (ICC) of 4 µA at TA = 25 °C, balanced propagation delays (tPLH ≈ tPHL), symmetrical output impedance of |IOH| = IOL = 8 mA minimum, and high noise immunity (VNIH = VNIL = 28% VCC minimum). It operates across VCC = 2.0 V to 5.5 V, making it directly compatible with both 3.3 V and 5 V logic rails, and is pin- and function-compatible with the legacy 74 series 373 to ease migration paths. A D-type transparent latch, in this product category, is a bistable memory element that captures data on its D input when the latch-enable (LE) pin is asserted HIGH and holds the last captured value when LE is de-asserted LOW. Octal variants integrate eight such latches into a single 20-pin package with a common LE and a common Output Enable (OE), making them ideal for bus-oriented designs where multiple data lines must be captured simultaneously and then tri-stated for sharing with other devices. Latches belong to the broader logic IC family (74-series), which descends from 74xx TTL and has been re-implemented in CMOS, HC, HCT, VHC, and AHC process generations offering progressively lower power and higher speed. The 74VHC373TTR's silicon-gate CMOS fabrication provides improved latch-up immunity over older HC implementations while preserving pin-out equivalence to the 74HC373, 74HCT373, and original bipolar 74373. Power-down protection on the inputs prevents back-drive current when VCC is removed, an essential feature for hot-swap and mixed-voltage systems. The output stage is optimized for balanced drive (8 mA source/sink), allowing direct interface with low-impedance bus lines without external buffers. Typical applications include microprocessor data-bus demultiplexing, address latching for memory expansion (SRAM, DRAM, EPROM), I/O port expansion via 74-series logic, holding registers in DSP pipelines, and bus-isolation between masters and slaves in shared-bus architectures such as the classic 8086/8088 or modern MCU GPIO expansion. When designing with the 74VHC373TTR, ensure that LE and OE timing satisfy the setup (ts) and hold (th) requirements listed in the datasheet's switching characteristics table to avoid race conditions in transparent-latch mode. Avoid leaving inputs floating; tie unused D inputs to VCC or GND through a resistor to prevent unintended ICC rise from floating CMOS gates. This page consolidates distributor pricing, drop-in alternatives, and practical design guidance not found on the manufacturer's product page.

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82P33913-1NLG - SyncE/1588 PTP Synchronizer IC | Renesas
82P33913-1NLG

82P33913-1NLG - SyncE/1588 PTP Synchronizer IC | Renesas

The Renesas 82P33913-1NLG is a high-performance synchronization System-on-Chip (SoC) for IEEE 1588 Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE) applications, integrating a 650 MHz ARM processor core, three independent DPLLs, and three programmable synthesizers in a 72-pin VFQFPN (10x10 mm) package. According to the Renesas product page, the device targets carrier-grade Ethernet equipment where PTP master and slave clocks, Stratum-3E holdover, and SONET/SDH reference timing must coexist on a single silicon die. The part number suffix "-1NLG" denotes the carrier-grade software build; the "NLG" suffix identifies the lead-free, RoHS-compliant 72-VFQFPN package with exposed thermal pad. A Synchronization System-on-Chip is a mixed-signal IC that combines a microcontroller or DSP engine, multiple Digital Phase-Locked Loops (DPLLs), fractional-N output synthesizers, and time-stamping hardware into one package. It sits between the PTP/SyncE packet network and the local clock tree of the line card, replacing dozens of discrete oscillators, jitter cleaners, and clock-generator ICs. In the hierarchy of clocking components, this category belongs above standalone PLL jitter cleaners and below full PTP grandmaster modules, serving as the on-board timing brain of 4G/5G base stations, DSLAMs, GPON/OLT line cards, and Ethernet switches. Key features of the 82P33913-1NLG include IEEE 1588-2008 (v2) PTP slave and master operation, SyncE/SONET/SDH reference selection, three independent DPLLs with programmable bandwidth, Stratum-3/3E holdover performance, and a 1 PPS / TOD time-stamp interface. The device supports multiple output formats including 1.544 MHz, 2.048 MHz, 25 MHz, 125 MHz, 156.25 MHz, and 161.1328 MHz. Software control uses the Renesas TimingMaker GUI and a host-side API, with firmware loaded via SPI or I2C boot. The 82P33913-1NLG utilizes a mixed-signal architecture pairing a high-speed 65-bit DPLL accumulator with a low-jitter fractional-N output stage. Internal EEPROM stores per-card calibration constants, while the on-chip ARM core runs the PTP stack and servo algorithm. This vertical integration removes the inter-IC jitter that arises when the PTP software, DPLL, and synthesizers are split across separate devices, delivering sub-nanosecond RMS phase noise in the typical SyncE output path. Typical applications include SyncE-aware Ethernet switches, 4G/5G mobile backhaul equipment, GPON/OLT line cards, IEEE 1588 grandmaster and boundary clocks, and SONET/SDH Add-Drop Multiplexers. In each, the 82P33913-1NLG acts as the central timing engine, recovering frequency from the network and synthesizing the local clocks required by PHYs, FPGAs, and baseband ASICs. When designing with the 82P33913-1NLG, follow the Renesas TimingMaker reference schematic: place 0.1 µF and 10 µF decoupling capacitors within 2 mm of every VDDCORE/VDDIO pin, route the 25 MHz crystal traces as a guarded differential pair, and ensure the exposed pad is soldered to a continuous ground plane for thermal dissipation. Holdover accuracy degrades sharply if the TCXO/OCXO reference is noisy, so budget for a sub-1 ppm reference oscillator. This page synthesizes distributor pricing for the 82P33913-1NLG, package-level alternative coverage, application-specific design guidance, and PTP/SyncE comparison context not collated in the manufacturer datasheet alone.

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85320AMILF - 1:1 LVCMOS/LVTTL-to-LVPECL Translator | Renesas
85320AMILF

85320AMILF - 1:1 LVCMOS/LVTTL-to-LVPECL Translator | Renesas

The Renesas 85320AMILF is a 1:1 LVCMOS/LVTTL-to-Differential 3.3V/2.5V LVPECL clock translator housed in an 8-pin SOIC package. It accepts a single-ended LVCMOS or LVTTL clock input and converts it to a differential LVPECL output pair, supporting a maximum output frequency of 267 MHz with a part-to-part skew of 275 ps (maximum). The device is part of Renesas' HiPerClocks family of high-performance clock solutions. A clock translator (also called a clock level shifter) is a specialized mixed-signal IC that bridges different logic-level signaling standards within a timing distribution network. Common clock standards include LVCMOS, LVTTL, LVPECL, LVDS, HCSL, and CML, each with different voltage swings, common-mode ranges, and jitter budgets. Clock translators sit between a source oscillator/buffer and a downstream load (FPGA, ASIC, serializer, ADC clock input) and preserve edge fidelity while adapting levels. Key features of the 85320AMILF include additive phase jitter of 0.05 ps RMS (typical), 3.3V operating supply voltage (3.135V to 3.465V range) and 2.5V operating supply voltage (2.375V to 2.625V range). The 8-pin SOIC package is small, surface-mountable, and suitable for compact board layouts where high performance and low power are required. Architecturally, the device uses a differential LVPECL output stage driven by an internal bias network referenced to VCC. The single-ended input stage accepts LVCMOS/LVTTL swing levels and feeds a limiting amplifier to produce a clean differential output. The low additive jitter (0.05 ps RMS) makes the part suitable for jitter-sensitive serializer/deserializer (SerDes) reference clocks and high-speed ADC/DAC sampling clocks. Typical applications include telecommunications backplane clock translation, networking line-card timing, FPGA/ASIC reference-clock level shifting, and test-and-measurement instrumentation where a low-jitter LVPECL distribution rail is required. The dual 2.5V/3.3V supply option simplifies designs that interface with mixed-voltage ASICs. When designing with this device, pay attention to LVPECL termination: each output pair typically requires a 50-ohm termination to VCC-2V (Thevenin-equivalent bias). Unused outputs should be left floating per the datasheet recommendation, not tied to ground. Maintain a clean supply with a 0.1 uF decoupling capacitor close to VCC. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical termination guidance not found in the standalone datasheet, giving engineers a single reference for sourcing and design-in decisions.

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874003BG-05LF - 320MHz PCIe Jitter Attenuator | Renesas
874003BG-05LF

874003BG-05LF - 320MHz PCIe Jitter Attenuator | Renesas

The Renesas 874003BG-05LF is a PCI Express (PCIe) fanout buffer and jitter attenuator IC built on IDT's 3rd Generation FemtoClock PLL technology, supporting input frequencies up to 320MHz with one differential output in a 20-pin TSSOP package. It accepts HCSL, LVDS, and LVHSTL reference inputs and produces a low-phase-noise clock suitable for PCIe add-in cards and embedded computing platforms. A jitter attenuator is a clock-domain device that cleans the phase noise of an incoming reference clock and regenerates a high-purity low-jitter signal. It sits between an upstream oscillator or PLL and downstream logic (SerDes, PCIe PHYs, ASICs), where cycle-to-cycle timing variation directly impacts link bit-error-rate. PCI Express specifications demand very tight PCIe Gen 2/3 jitter budgets, making FemtoClock-class jitter attenuators a common solution. The 874003 family belongs to a broader Renesas clock-IC portfolio that includes fanout buffers, synthesizers, and frequency multipliers used across networking and computing. Key specifications include 320MHz maximum input/output frequency, differential HCSL/LVDS/LVHSTL input compatibility, low additive jitter from the FemtoClock PLL, single 3.3V supply operation, and industrial 0°C to +70°C commercial temperature grade. The 20-pin TSSOP package saves board area compared with QFN alternatives and is well suited to compact PCIe add-in cards. Typical applications include PCI Express add-in cards, server motherboards, networking switches and routers, embedded computing platforms, and storage controllers that require a low-jitter PCIe reference clock sourced from a noisy system clock domain. Designers should pay attention to power-supply decoupling and output trace impedance when integrating this part. Place 0.1µF ceramic bypass capacitors close to each supply pin and maintain 100-ohm differential routing on the HCSL outputs to meet PCIe compliance. This page synthesizes current distributor pricing, drop-in alternatives from the same Renesas 874003 family and cross-brand PCIe jitter attenuators, plus practical layout and decoupling notes not consolidated in the manufacturer datasheet.

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88E1512-A0-NNP2I000 - Single-Port Gigabit Ethernet PHY | Marvell
88E1512-A0-NNP2I000

88E1512-A0-NNP2I000 - Single-Port Gigabit Ethernet PHY | Marvell

The Marvell 88E1512-A0-NNP2I000 is a single-port Gigabit Ethernet physical-layer transceiver with RGMII and SGMII support, designed for copper and fiber media interfaces. It supports 10/100/1000 Mb/s operation, IEEE 802.3 and IEEE 1588-related functionality, and operates from a single 3.3 V supply while providing internal support for 1.8 V, 2.5 V, and 3.3 V interfaces. The device is housed in a 56-QFN package, identified by distributor data as an 8 mm by 8 mm package. An Ethernet PHY is the physical-layer component between a MAC or Ethernet switch and a physical network medium. It converts parallel or serial digital data into electrical signaling for copper links and can provide a fiber-oriented interface when the system uses compatible SFP modules. The 88E1512 supports RGMII for direct MAC or switch connections and SGMII operating at 1.25 Gb/s over a single differential pair. This makes it relevant to industrial networking, factory equipment, access infrastructure, and embedded Ethernet systems. Key features include support for full- and half-duplex operation, copper/fiber auto-media applications, integrated switching voltage-regulator functionality, and Advanced Virtual Cable Tester capability based on time-domain reflectometry. The cable-test feature can help identify pair swaps, pair-polarity errors, and excessive pair skew, supporting installation diagnostics and field troubleshooting. The manufacturer documentation also identifies IEEE 802.3 and IEEE 1588 references, while the exact feature availability depends on the device variant and system configuration. The device is intended for designs that need a compact Ethernet PHY with flexible MAC-facing interfaces. RGMII can connect directly to a MAC or switch port, while SGMII can be used on the media or line side with compatible 1000BASE-X, 100BASE-FX, or SGMII modules. The 56-QFN package reduces board area but requires careful high-speed layout, controlled impedance routing, adequate supply decoupling, and thermal verification. Typical applications include industrial Ethernet controllers, communications equipment, network switches, copper-to-fiber media converters, access-point equipment, and embedded systems requiring a single Ethernet port. When selecting a replacement, verify the exact package, pinout, strapping options, interface mode, supply requirements, and clocking arrangement in the manufacturer datasheet rather than relying only on the family name. This page combines the verified manufacturer and distributor information with practical interface-selection and layout guidance. It is intended to help engineers identify whether the 88E1512-A0-NNP2I000 matches the required 10/100/1000 Mb/s Ethernet PHY application before requesting quotation or designing a replacement board.

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88NV1120 - 6Gb/s SATA SSD Controller | Marvell
88NV1120

88NV1120 - 6Gb/s SATA SSD Controller | Marvell

The Marvell 88NV1120 is a DRAMless NAND flash SSD controller supporting a 6Gb/s SATA interface for small-form-factor and value-line solid-state-drive markets. The verified source describes the 88NV1120 as the SATA-oriented member of the 88NV1140/88NV1120 family, while the 88NV1140 supports X1-lane PCIe 3.0 or legacy AHCI through PCIe. The 88NV1120 combines NAND management, storage-interface control, and flash-reliability functions in one storage-controller IC. It also uses Marvell's third-generation LDPC technology to improve reliability and support TLC NAND in addition to MLC NAND. A DRAMless SSD controller is an integrated circuit that manages nonvolatile NAND flash without requiring an external DRAM buffer. In the storage hierarchy, it sits between the host-facing SATA interface and NAND devices, translating storage commands while coordinating flash programming, erase, wear management, error correction, and data placement. The verified material identifies 6Gb/s SATA connectivity, DRAMless operation, LDPC reliability enhancement, endurance improvement, and TLC support as the principal engineering characteristics. The 88NV1120 targets cost-sensitive client SSD designs where interface compatibility and NAND support matter more than PCIe performance. Its 6Gb/s SATA interface aligns it with client storage platforms that use SATA connectors and protocols. Unlike the 88NV1140, however, it does not provide the X1-lane PCIe 3.0 interface described for that family member. This protocol distinction is essential during controller selection and PCB reuse because a functionally similar flash controller may require different firmware, validation, and board integration. Typical applications include value-oriented client SSDs, small-form-factor storage products, and systems designed around SATA rather than NVMe over PCIe. The product overview specifically associates the controller family with cost-effective SSDs intended to approach hard-disk-drive affordability as NAND costs decline. System-level qualification must still confirm supported NAND types, capacities, firmware, endurance requirements, temperature behavior, and the complete SSD validation matrix. Designers should treat SSD-controller substitution as a system-level qualification decision rather than a simple electrical swap. Host interface support, NAND firmware, ECC behavior, wear-leveling requirements, power states, package details, and validation evidence must all match. According to the Marvell product brief, the controller supports Marvell third-generation LDPC technology for reliability enhancement, endurance boost, and TLC NAND support on top of MLC NAND. This page consolidates the verified controller overview, source documentation, storage-interface context, and application constraints for engineers evaluating an 88NV1120 SSD design. It also distinguishes verified facts from unavailable electrical, package, lifecycle, pricing, and pin-level data so procurement or design decisions are not based on unsupported assumptions.

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88SE9235 - 4-Port SATA 6Gbps PCIe 2.0 x2 Controller | Marvell
88SE9235

88SE9235 - 4-Port SATA 6Gbps PCIe 2.0 x2 Controller | Marvell

The Marvell 88SE9235 is a four-port SATA 6 Gbps host bus adapter controller with a two-lane PCIe 2.0 host interface, housed in a 76-terminal HVQCCN (QFN) package and fabricated on a 55 nm CMOS process. A SATA host controller (also called an HBA controller or SATA I/O controller) is a storage interface IC that connects SATA devices such as HDDs, SSDs, and optical drives to a host system over the PCI Express bus. Within the system hierarchy, it sits between the PCIe root complex and the physical SATA ports, handling the Serial ATA protocol stack, command processing, and PHY-layer serialization. The 88SE9235 belongs to Marvell's 88SE92xx family of PCIe-to-SATA controllers. Key features include four independent SATA ports supporting both 3 Gbps (SATA II) and 6 Gbps (SATA III) link speeds, compliance with the Serial ATA Revision 3.1 specification from the Serial ATA International Organization, and a PCIe 2.0 interface with up to two lanes delivering up to 2 GB/s of aggregate bandwidth toward the host. This makes the device well suited for designs that must connect more SATA ports than a chipset natively provides. Technically, the integrated PHY, link, and transport layers reduce external component count, while the 55 nm CMOS process keeps power consumption appropriate for embedded and consumer platforms. Marvell positions the 88SE9235 both for embedded platform applications and for HBA vendors who develop their own RAID software or rely on in-box OS drivers, simplifying driver bring-up across Windows and Linux environments. Typical applications include home NAS and media servers, DVR/NVR video-recording platforms, set-top boxes, and add-in SATA host bus adapter cards requiring four 6 Gbps ports on a single PCIe x2 slot. When designing with this device, verify that the PCIe 2.0 x2 link bandwidth (up to 2 GB/s raw) is not oversubscribed when all four SATA ports operate at 6 Gbps concurrently; host bandwidth planning is essential for multi-drive RAID workloads. This page synthesizes distributor pricing channels, family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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88SS1074 - DRAM-Based SATA SSD Controller | Marvell
88SS1074

88SS1074 - DRAM-Based SATA SSD Controller | Marvell

The Marvell 88SS1074 is a DRAM-based SATA SSD controller designed for high-performance, low-power solid-state storage systems in personal computers and enterprise applications. It supports MLC and TLC NAND devices and uses Marvell's third-generation LDPC error-correcting technology, reliability enhancement, and endurance-boost features. The controller is designed for SATA SSD platforms requiring NAND management, data integrity, and efficient flash translation. A SATA SSD controller is the central system-on-chip in a solid-state drive: it interfaces with NAND flash, manages the SATA host interface, performs flash translation, coordinates DRAM, and protects data through error correction. The 88SS1074 is positioned for embedded and storage designers who need a mature SATA controller architecture rather than a generic storage interface. SSD Wiki describes it as a four-channel, DRAM-equipped SATA III controller used in platforms such as the Crucial MX300. Verified information identifies the 88SS1074 as supporting MLC NAND alongside TLC NAND, with third-generation LDPC technology and reliability and endurance enhancements. These features are relevant to NAND wear, read-recovery behavior, and sustained SSD operation. The available product-page snippet does not specify package dimensions, operating voltage, interface signaling details beyond the SATA classification, NAND channel count, or supported capacity range, so those values are not inferred here. Typical design contexts include client SATA SSDs, personal-computer storage, enterprise SSD systems, and other embedded storage products using compatible NAND and DRAM. The controller's value is strongest when the design benefits from established SATA SSD firmware integration and validated flash-management behavior. The source material presents the part as suitable for both high-performance and low-power SSD systems. Design work must verify the exact package, pinout, electrical limits, NAND interface, DRAM requirements, firmware support, and qualification status against the applicable manufacturer documentation before layout or production use. Controller substitution is especially sensitive because firmware, NAND timing, power states, and validation procedures may differ even when a competing controller supports the same SATA standard. This page consolidates verified manufacturer positioning, distributor-linked technical material, and application guidance while clearly separating unavailable parameters. It does not infer electrical specifications, pricing, lifecycle status, or drop-in replacement data that were not present in the supplied sources.

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88SS1321 - PCIe Gen4 NVMe SSD Controller | Marvell
88SS1321

88SS1321 - PCIe Gen4 NVMe SSD Controller | Marvell

The Marvell 88SS1321 is a PCIe Gen 4x4 NVMe SSD controller with four NAND channels, a tri-core Arm Cortex-R5 architecture, and support for DRAM and DRAMless operation. It operates with ONFI and TOGGLE NAND channels at speeds up to 1200 MT/s and is positioned for high-capacity, high-throughput, low-latency solid-state drives. The device targets compact M.2 2242, M.2 2280, and M.2 2230 designs, including client PCs, enterprise boot drives, gaming storage, cloud data-center systems, and edge devices. An SSD controller is the system-level component that coordinates a host interface, NAND flash channels, optional DRAM, error handling, and NVMe command processing. Within the storage hierarchy, the 88SS1321 is a PCIe-to-NAND bridge and storage-management IC rather than a generic microcontroller. Its PCIe Gen4 interface connects the SSD to a host, while the four NAND channels provide parallel access for capacity, throughput, and latency performance. The 88SS1321 supports four ONFI and TOGGLE NAND channels operating at up to 1200 MT/s. Its tri-core Arm Cortex-R5 architecture enables DRAM and DRAMless operation, allowing the controller to support designs with different cost, capacity, and performance targets. The Marvell product family is optimized for power-performance, capacity-performance, endurance, reliability, and security in ultra-small package sizes. Typical applications include client PC storage, enterprise boot drives, cloud data-center compute-server storage, gaming storage, industrial systems, and edge-computing devices. The controller is especially relevant when an SSD design requires a high-speed PCIe Gen4x4 host interface, multiple NAND channels, and flexible support for both cached and DRAMless configurations. Designers should validate the exact NAND device support, electrical limits, firmware configuration, package details, thermal behavior, and SSD qualification requirements against the manufacturer documentation for the selected 88SS1321 ordering variant. Because the verified sources describe the controller family and product brief but do not provide a complete electrical datasheet, package pinout, pricing, or lifecycle statement in the supplied data, those items remain subject to engineering verification. This product page synthesizes Marvell family positioning, PCIe Gen4 and NAND-channel capabilities, application-fit information, and design considerations into a structured engineering reference for SSD controller evaluation.

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89H24NT24G2ZCHLGI - 24-Lane/24-Port PCIe Gen2 Switch | Renesas
89H24NT24G2ZCHLGI

89H24NT24G2ZCHLGI - 24-Lane/24-Port PCIe Gen2 Switch | Renesas

The Renesas 89H24NT24G2ZCHLGI is a 24-lane, 24-port PCI Express Gen2 system interconnect switch housed in a 324-pin FCBGA (19x19 mm) package, originally developed by Integrated Device Technology (IDT, now part of Renesas). It delivers full line-rate, non-blocking throughput on all 24 ports simultaneously, providing deterministic switching across multiple traffic flows regardless of load. The device is part of the 89HPES24NT24G2 family and targets high-performance server, storage, and embedded switching fabrics. A PCIe Gen2 system interconnect switch is a semiconductor device that expands the number of PCIe endpoints a root complex can service by routing Transaction Layer Packets (TLPs) between upstream ports and multiple downstream ports. Switches sit hierarchically below root complexes and endpoints in the PCIe topology and are essential for fan-out in dense compute and storage systems. Each Gen2 lane runs at 5 GT/s, doubling the bandwidth of Gen1 (2.5 GT/s) and enabling higher per-port throughput while preserving backward compatibility with Gen1 endpoints. Key features of the 89H24NT24G2ZCHLGI include support for PCI Express Gen2 (5.0 GT/s) on all 24 lanes, 24 configurable ports, non-blocking cut-through architecture, and integrated clocking with spread-spectrum support. The device supports maximum payload sizes up to 4096 bytes (MPS), Extended Configuration Space access, and provides per-port flow control. Power management is implemented through PCI-PM 1.2 compliant link states and proprietary low-power modes that gate unused ports, reducing idle consumption in dense designs. The switch fabric uses a multi-stage shared-memory architecture that preserves packet ordering and supports peer-to-peer routing between any two downstream ports without host intervention. This enables direct memory transfers in heterogeneous compute topologies (e.g., GPU-to-storage, NVMe-to-CPU) and minimizes root-port bottlenecking. The on-chip SerDes supports Gen2 electrical signaling with adaptive equalization and de-emphasis for compliance with PCI-SIG CEM specifications across standard channel reaches up to approximately 12 inches of FR4. Typical applications include NVMe storage fabrics in hyperscale servers, multi-host disaggregated storage platforms, GPU expansion chassis, embedded industrial backplanes, and PCIe-over-cable fan-out systems. The 324-FCBGA package supports high-density PCB designs with controlled-impedance routing for the 24 SerDes lanes. End-of-life (Obsolete) status affects long-term availability but the part remains supported by Renesas for embedded and legacy server customers. Design considerations: maintain 85-ohm differential impedance on all 24 SerDes lanes, provide matched-length routing within 5 mils to preserve Gen2 eye margins, and ensure robust reference clock distribution with the on-chip PLL bypass option. The device requires multiple voltage rails (core, SerDes, I/O); refer to the manufacturer datasheet for decoupling topology. This page synthesizes distributor pricing, drop-in alternatives, and engineering design notes beyond the manufacturer datasheet.

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8N3SV75BC-0099CDI - 187.5MHz FemtoClock VCXO, LVPECL | Renesas
8N3SV75BC-0099CDI

8N3SV75BC-0099CDI - 187.5MHz FemtoClock VCXO, LVPECL | Renesas

The Renesas 8N3SV75BC-0099CDI is a programmable FemtoClock voltage-controlled crystal oscillator (VCXO) factory-programmed to deliver a 187.5 MHz LVPECL output from a 2.375V to 2.625V supply in a hermetic 6-CLCC ceramic surface-mount package. It is part of the 8N3SV75 family of frequency-programmable precision timing devices with sub-picosecond jitter performance. A VCXO (voltage-controlled crystal oscillator) is a type of oscillator whose output frequency can be finely adjusted by an external control voltage applied to a tuning pin. It is a member of the broader oscillator taxonomy: VCXO -> crystal oscillator -> timing device -> clock generator -> frequency control component. VCXOs are used where the local reference needs to be locked to a network or backplane clock via a phase-locked loop. Key features include a 187.5 MHz LVPECL differential output, 2.5V supply operation, sub-ps RMS phase jitter, and FemtoClock ultra-low-jitter architecture. The 8N3SV75 platform supports factory-programmable output frequencies from 15.476 MHz to 1500 MHz with 1 ppm or better frequency stability across industrial temperature ranges. The device uses a third-overtone crystal with a fundamental-frequency PLL multiplier and a low-noise LVPECL output stage. Internal LDOs isolate the oscillator core from supply noise, yielding high PSRR and predictable jitter behavior even when the host board supplies a noisy 2.5V rail. Typical applications include SONET/SDH line cards, optical transport network (OTN) framers, FPGA serializer/deserializer reference clocks, high-speed ADC/DAC sampling clocks, and wireless base station timing references. Any 187.5 MHz reference point - including legacy Ethernet PHYs - can be served by this part. A critical design consideration is that the output frequency is fixed at order time; frequency changes require a new MPN. Layout must keep the LVPECL pair (OUT, /OUT) matched-length and 50-ohm terminated at the receiver. This page synthesizes distributor pricing, same-package alternatives, and design guidance not found in the manufacturer datasheet.

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8N4SV75BC-0099CDI - FemtoClock VCXO 187.5 MHz LVDS 6-CLCC | Renesas
8N4SV75BC-0099CDI

8N4SV75BC-0099CDI - FemtoClock VCXO 187.5 MHz LVDS 6-CLCC | Renesas

The Renesas (formerly IDT) 8N4SV75BC-0099CDI is a programmable FemtoClock VCXO frequency synthesizer delivering an LVDS output at 187.5 MHz from a 6-CLCC ceramic package. As a member of the 8N4SV75 FemtoClock family, this device integrates a fractional-N PLL with a low-jitter VCXO stage, allowing system designers to generate non-integer reference frequencies with sub-picosecond RMS jitter performance. The 'BC' suffix denotes the 6-CLCC (7.0 x 5.0 mm) hermetic package and the LVDS output type, which is verified through distributor listing at Mouser and DigiKey. What is a FemtoClock VCXO? A VCXO (Voltage-Controlled Crystal Oscillator) is a timing component whose output frequency can be finely adjusted by an external control voltage, enabling PLL-based jitter attenuation or frequency fine-tuning in synchronous networks. A FemtoClock refers specifically to the Renesas/IDT FemtoClock NG family that combines a fractional-N PLL with a low-jitter oscillator core to deliver sub-picosecond RMS phase jitter, typically below 0.5 ps RMS (12 kHz to 20 MHz). These devices occupy the application layer between standard XOs (no tuning) and full clock generators, in the broader hierarchy of clock and timing ICs inside the Power Management / Clock & Timing tree of an electronic system. Key features of this part include a programmable output frequency from 15.476 MHz to 866.72 MHz, low additive RMS jitter under typical LVDS load, an integrated Voltage Controlled Crystal Oscillator tuning port with a sensitivity optimized for 50 ppm pull range, an operating supply range of 2.375 V to 3.465 V, and a select-one of eight pre-configured frequency profiles stored in one-time programmable (OTP) memory. The LVDS output swing (~350 mV differential) provides strong noise immunity for backplane and high-speed serial links, while the 6-CLCC hermetic package simplifies board integration for industrial designs. Architecture-wise, the 8N4SV75 FemtoClock platform routes the VCXO output through a sigma-delta fractional-N PLL to the LVDS driver. The PLL multiplier and divider ratios are encoded into OTP during the Renesas factory programming step, so every MPN variant (e.g. -0099CDI vs -0999CDI8) corresponds to a unique frequency code. Typical applications include telecom backplane synchronization, network routers and switches, FPGA and ASIC reference clocks, PCIe/SERDES reference inputs, and instrumentation timing cards. Designers select this part when they require a board-mounted frequency reference with a fine tuning range and picosecond-level jitter without designing a discrete PLL. When laying out, keep LVDS traces at 100 ohm differential, place the AC-coupling caps close to the receiver, and power the rail from a low-noise LDO. Decoupling requirements and OTP programming constraints should be confirmed against the Renesas family datasheet before schematic commit. This page integrates distributor stock levels, drop-in compatible FemtoClock alternatives, and parameter-by-parameter application notes not present in any individual listing.

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8SLVP1212ANLGI - 2:12 LVPECL Fanout Buffer, 2 GHz | Renesas
8SLVP1212ANLGI

8SLVP1212ANLGI - 2:12 LVPECL Fanout Buffer, 2 GHz | Renesas

The Renesas 8SLVP1212ANLGI is a high-performance, 2:12 differential LVPECL fanout buffer designed for the distribution of high-frequency, very low additive phase-noise clock and data signals. The device accepts one differential LVPECL input pair and generates twelve LVPECL output pairs, operates from a 3.3 V or 2.5 V supply, and supports toggle frequencies up to 2 GHz. It is housed in a 40-pin 6 mm × 6 mm VFQFN-EP (NLG) package with an exposed pad for thermal dissipation. What is a clock fanout buffer? It is a clock distribution IC that replicates a single reference clock across multiple outputs while preserving edge fidelity, skew, and phase noise. Fanout buffers sit between a clock source (crystal oscillator, PLL, or upstream serializer) and downstream loads (FPGA transceivers, ADC/DAC sample clocks, switch fabric, DSP cores), forming a tier of the broader clock-tree hierarchy: clock source -> fanout buffer -> clocked loads. Their primary engineering value is guaranteeing output-to-output skew, part-to-part skew, and additive jitter so that multi-channel systems stay synchronized. Key features of the 8SLVP1212ANLGI include guaranteed low output-to-output skew, very low additive phase noise for high-frequency clock distribution, internal termination on LVPECL inputs for impedance matching, and an operating temperature range of -40 °C to +85 °C. The differential LVPECL I/O swings (~800 mV) reject common-mode noise on the clock traces, which is essential across long PCB routes in multi-board chassis. Power consumption is dominated by the twelve LVPECL output drivers; the exposed-pad package is required for continuous full-load operation. Typical applications include clock distribution in high-speed telecommunications line cards, multi-channel ADC/DAC sampling systems, FPGA reference clock networks, storage area network (SAN) switches, and high-end test-and-measurement instrumentation. When laying out the PCB, place the device close to the clock source to minimize input trace length, route the LVPECL outputs as 100 Ω differential pairs, and stitch the VFQFN-EP exposed pad with multiple thermal vias for thermal relief under maximum load. This page synthesizes distributor pricing, drop-in alternatives, and PCB layout guidance not found in the manufacturer datasheet.

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9DBL411BGLFT - 150MHz 4-Output PCIe Fanout Buffer | Renesas
9DBL411BGLFT

9DBL411BGLFT - 150MHz 4-Output PCIe Fanout Buffer | Renesas

The Renesas Electronics 9DBL411BGLFT is a 3.3 V, four-output low-power differential fanout buffer with a maximum operating frequency of 150 MHz, supplied in a 20-pin TSSOP package. It distributes one differential clock input across four independently controlled differential output pairs for PCI Express and QPI systems. According to the verified manufacturer information, the device supports PCI Express Gen1, Gen2, and Gen3 signaling and includes a dedicated OE# control for each output pair. A PCI Express fanout buffer is a clock-distribution and differential-signal-integrity component used to provide one input signal with multiple low-skew copies. In a larger system, the device sits between a clock source or upstream transceiver and several PCI Express destinations. Its four-output architecture reduces the need for duplicated clock-generation circuits, while individual output enables permit unused outputs to be disabled during test or power-management conditions. The key verified characteristics are a 3 V to 3.6 V supply range, 150 MHz maximum operating frequency, 50 ps skew, output-cycle-to-cycle jitter below 25 ps additive, and four individually controlled output enables. The package is identified as a surface-mount TSSOP-20 with a 4.40 mm body and 0.65 mm pitch, and the source material identifies it as RoHS compliant. The low-power differential-output architecture is intended for high-speed communication equipment, including PCIe and QPI clock or signal distribution. The 9DBL411 is especially relevant where a system needs multiple copies of a 3.3 V differential signal and predictable output-enable control. Compared with a generic single-output clock driver, it consolidates four output pairs in one device. Compared with a central buffer that lacks per-output control, it allows each destination to be enabled or disabled separately. The 150 MHz operating limit should still be checked against the actual interface requirement, especially when retiming, cable loss, or receiver tolerance affects the system design. Typical applications include PCI Express endpoint and root-complex clock distribution, QPI interface distribution, server and workstation motherboard clock trees, high-speed interface test equipment, and industrial communication modules using differential signaling. In each case, the designer must preserve the differential pair geometry, provide the required input and output termination specified by the system architecture, and validate timing, power, and enable sequencing at the board level. A critical design consideration is that this is a differential fanout buffer rather than a general-purpose regulator or logic gate. Route each differential pair as a controlled-impedance connection, minimize stubs and mismatched branches, and confirm OE# polarity and timing before enabling downstream receivers. Verify the complete datasheet for exact pin names, recommended termination, and application-specific timing margins. This page combines verified distributor and manufacturer information with package, application, sourcing, and design guidance to help engineers evaluate the 9DBL411BGLFT. It is intended as a concise engineering reference rather than a substitute for the manufacturer datasheet, especially for pin-level implementation and production qualification.

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9DBV0441AKILF - 1.8V PCIe Gen1-3 4-Ch Clock Buffer | Renesas
9DBV0441AKILF

9DBV0441AKILF - 1.8V PCIe Gen1-3 4-Ch Clock Buffer | Renesas

The Renesas 9DBV0441AKILF is a 1.8 V, 4-output very-low-power zero-delay/fanout clock buffer (ZDB/FOB) optimized for 100 MHz PCI Express Gen1, Gen2, and Gen3 (and software-selectable 125 MHz Ethernet) applications, housed in a 32-pin VFQFPN 5x5 mm package. It integrates 100 ohm output terminations, supports HCSL-compatible differential input, and provides four HCSL outputs with programmable amplitude and slew rate per output. Output frequency is 100 MHz PCIe default with 125 MHz Ethernet selectable through software, and a pin-selectable PLL bandwidth/PLL-bypass mode lets designers minimize phase jitter for each application. A zero-delay buffer (ZDB) is a type of clock buffer IC that maintains the timing relationship between input and output clocks using an internal phase-locked loop (PLL). ZDBs sit in the clock distribution hierarchy between the platform clock generator (e.g., CK410/CK505) and endpoint devices, regenerating and fanning out low-jitter clocks to multiple loads while preserving input-to-output delay within tens of picoseconds. As a member of the SOC-Friendly 1.8 V VLP PCIe family, this part is specifically positioned for power-sensitive SoC platforms where 1.8 V supply rails are already present. Key differentiating specifications include four HCSL outputs with integrated 100 ohm terminations (eliminating external Rs at each output), software-selectable 100 MHz/125 MHz operation, pin/software-selectable PLL bypass for minimum jitter mode, and per-output programmable slew rate for tuning across varied line lengths. The 32-VFQFPN (5x5) package with exposed pad provides a low thermal resistance path suited to the part's very-low-power consumption profile. The architecture uses an internal PLL with programmable loop filter, allowing the designer to choose between high-bandwidth tracking of the reference (best for jitter attenuation of upstream noise) and low-bandwidth (best for low-frequency jitter transfer to outputs). HCSL outputs are PCIe-compliant and meet all PCIe Gen1-Gen3 base specification jitter masks. Differential input accepts common clock sources including those compliant with CK410/CK505 or PCIe reference clocks. Power is delivered through a single 1.8 V rail, simplifying motherboard layout and BOM. Typical applications include server and workstation PCIe slot clock distribution, embedded computing platforms with PCIe endpoints, networking switches and routers with 1GbE/10GbE PHYs, storage controllers (SAS/SATA/NVMe), and industrial PCIe expansion cards. The combination of very-low-power operation, small package, and integrated terminations makes the part especially attractive for space-constrained SoC designs. Designers should pay attention to the reference clock input routing (maintain 100 ohm differential impedance), per-output amplitude/slew programming via SMBus, and thermal pad soldering for the 32-VFQFPN exposed pad. Verify the PLL bandwidth setting matches the jitter profile required by downstream endpoints. This page synthesizes distributor pricing, drop-in Renesas/PCB-compatible alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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9DML0441AKILF - 2:4 3.3V PCIe Gen 1-5 Clock Mux | Renesas
9DML0441AKILF

9DML0441AKILF - 2:4 3.3V PCIe Gen 1-5 Clock Mux | Renesas

The Renesas 9DML0441AKILF is a 2:4 3.3V PCIe Gen 1-5 clock multiplexer (mux) housed in a space-saving 4 mm × 4 mm 24-VFQFPN package. It delivers one 100 Ω output impedance channel set with HCSL-compatible differential inputs and integrated output terminations for direct connection to 100 Ω transmission lines, eliminating up to sixteen external resistors and shrinking PCB area. Typical power consumption is only 79 mW. A clock buffer (also called a clock multiplexer or clock fanout buffer) is a timing-IC building block that selects between two or more reference clocks and replicates the selected reference to one or more outputs while preserving edge rate, duty cycle and phase noise. Buffers sit one layer below the phase-locked loop (PLL) and above the serializer/deserializer (SerDes) PHY in the clock tree, and they are the standard way to route a PCIe reference-clock from a system clock generator to multiple endpoints such as root complexes, switches, retimers and NVMe SSDs. Key features of the 9DML0441AKILF include PCIe Gen 1-5 Common Clocked (CC), Separate Reference no Spread (SRnS), and Separate Reference Independent Spread (SRIS) architecture support, Spread Spectrum Clocking (SSC) compatibility, individual OE# pins for each output, and selectable asynchronous or glitch-free gapped-clock switching. The glitch-free mode allows the mux to be selected at power-up even if both inputs are not running, then transitions to glitch-free switching once both inputs are active. This dual-mode behavior is essential for systems that must boot from a single reference and later switch to a redundant or spread reference without producing runt pulses. Architecturally, the device uses a 3.3 V core with HCSL input receivers, an internal 2:1 selector, four differential output drivers with on-die 100 Ω termination, and per-output OE# logic. The integrated terminations are the main differentiator versus discrete PCIe buffers that require 16 external source-termination resistors. Typical applications include server motherboards, NVMe SSD controllers, PCIe switches and retimers, workstation add-in cards, and embedded computing platforms that need a robust 100 Ω PCIe reference-clock multiplexer. The wide PCIe Gen 1-5 compliance also makes it suitable for Gen 4 and Gen 5 backplane designs. When designing with this part, choose 85 Ω variants (e.g., 9DML0451AKILF) for 85 Ω board traces; the 100 Ω output impedance of the 9DML0441AKILF assumes 100 Ω differential routing and a 0.1 μF AC-coupling capacitor at each receiver. This page synthesizes distributor pricing, drop-in alternatives and practical design notes for the 9DML0441AKILF that are not consolidated in the manufacturer datasheet.

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9DML0451AKILFT - 2:4 PCIe Gen 1-7 Clock Mux 24-QFN | Renesas
9DML0451AKILFT

9DML0451AKILFT - 2:4 PCIe Gen 1-7 Clock Mux 24-QFN | Renesas

The Renesas 9DML0451AKILFT is a 3.3V, 2-input to 4-output PCIe Gen 1-7 clock multiplexer (clock mux) integrated circuit housed in a 24-pin VFQFPN 4x4 mm package, optimized for routing reference clocks to PCIe slots, devices, and downstream redrivers. It supports Common Clocked (CC), Separate Reference no Spread (SRnS), and Separate Reference Independent Spread (SRIS) architectures, giving system designers flexibility across server, workstation, and embedded platforms where the reference clock topology varies. The part targets a maximum reference clock frequency of 200 MHz and provides selectable asynchronous or glitch-free gapped-clock switching so the mux can be safely selected at power-up even when both inputs are not yet running. What is a PCIe clock multiplexer? A PCIe clock mux is a specialized clock buffer/router in the Clock & Timing semiconductor family that selects between two incoming HCSL reference clocks and fans them out to multiple output pairs. It belongs to the clock generator hierarchy: clock generator -> clock buffer -> clock multiplexer -> fanout buffer -> timing IC, and ultimately to the broader category of PCI Express signal-conditioning and clock-tree devices. Its purpose is to provide a clean, low-jitter, well-terminated differential reference clock to PCIe endpoints. Key features include integrated 85 ohm output termination that connects directly to 85 ohm transmission lines without external resistors (saving up to 16 resistors per board), a typical power consumption of 79 mW, individual OE# (output enable) pins per output, Spread Spectrum Clocking (SSC) compatibility for EMI reduction, and HCSL-compatible differential inputs. The 24-VFQFPN 4x4 mm footprint is among the smallest PCIe Gen 5-7 clock muxes on the market, making the part attractive for space-constrained server motherboards and riser cards. Architecturally, the 9DML0451AKILFT uses a low-power HCSL (LP-HCSL) output stage with on-die termination that meets PCIe CEM 4.0 jitter specifications while eliminating the external resistor network normally required by HCSL drivers. The selectable glitch-free switching mode prevents runt pulses during input transitions, which is critical for downstream retimers and endpoint PHYs that can lose link training on a single short-cycle glitch. Typical applications include PCIe Gen 1-7 server and workstation clock distribution, riser-card reference clock routing, BMC/CPLD clock-tree multiplexing, redundant reference-clock failover for high-availability systems, and embedded platforms requiring SRIS or SRnS compliance for add-in cards. When designing with this part, verify that your board layout keeps the 85 ohm differential pairs matched to within 5 mils, place decoupling caps within 100 mils of each supply pin, and choose glitch-free mode whenever downstream devices may already be in link training. This page synthesizes distributor pricing, drop-in alternatives, and practical PCB-level design notes not consolidated in the manufacturer datasheet.

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9FGL0841BKILFT - 8-Output 3.3V PCIe Gen 1-6 Clock Generator | Renesas
9FGL0841BKILFT

9FGL0841BKILFT - 8-Output 3.3V PCIe Gen 1-6 Clock Generator | Renesas

The Renesas 9FGL0841BKILFT is an 8-output 3.3V PCIe Gen 1-6 clock generator housed in a 48-pin VFQFPN (6x6 mm) package. It supports 100 Ohm differential impedance HCSL outputs at 100 MHz, with each of the eight differential outputs driven by its own dedicated OE# pin implementing PCIe CLKREQ# functionality. According to Renesas documentation, the device supports PCIe Common Clocked (CC), Separate Reference No Spread (SRNS) and Separate Reference Independent Spread (SRIS) architectures, and offers two programmable spread-spectrum levels in addition to spread-off operation. A clock generator is a semiconductor device that produces one or more precise reference timing signals used to synchronize data transfers between digital subsystems. Within the broader hierarchy of timing components, this part falls under clock generators -> timing ICs -> clock & timing -> analog/mixed-signal ICs -> semiconductors. PCIe clock generators specifically deliver the low-jitter, 100 MHz HCSL reference clocks mandated by the PCI Express specification for root complexes, endpoints, switches, retimers, and NVMe storage controllers. The 9FGL0841 family also supports PCIe Gen 1 through Gen 6 signaling speeds, making it suitable for the newest server, storage, and workstation platforms. Key specifications include 3.3V core supply operation, 25 MHz crystal or differential reference input, eight HCSL outputs with 100 Ohm differential impedance, integrated 100 Ohm output terminations, dedicated output-enable pins, and selectable spread-spectrum profiles. Each output can be independently enabled or disabled through its OE# pin, simplifying power management in platforms that need to clock only the PCIe slots or devices currently in use. The part is rated for industrial temperature operation and supports reflow soldering compatible with standard lead-free assembly profiles. The 9FGL0841 architecture is built around an internal PLL that locks the 25 MHz reference to a 100 MHz output, distributing the resulting low-jitter clock through eight individually-buffered HCSL output stages. Spread-spectrum modulation is applied at the PLL level to reduce EMI in dense chassis designs. This design approach delivers sub-picosecond RMS jitter and tight frequency tolerance required by PCIe Gen 5/6 CEM and base-spec compliance masks. Typical applications include servers and high-performance computing platforms, NVMe SSD storage arrays, networking switches and routers, workstation motherboards, and embedded computing boards with PCIe expansion. The 48-pin VFQFPN 6x6 mm package provides good thermal performance and is pin-compatible with the wider 9FGL02x1 / 9FGL04x1 / 9FGL06x1 family for design reuse. The 9FGL0841BKILFT is delivered on tape-and-reel in 2500-unit reels, and an industrial-temperature (-40C to +85C) version supports harsh-environment deployments. Always confirm PCIe hosting with the latest PCI-SIG compliance checklist before production release. When designing with this part, place the 25 MHz crystal within 5 mm of the REF_IN pins and route the HCSL outputs as 100 Ohm differential pairs with reference-plane continuity for jitter control. Series decoupling on each supply pin is required, and the unused OE# pins must be pulled to a defined logic level to prevent floating-input oscillation. This page consolidates distributor pricing, drop-in alternatives, application notes, and PCB layout guidance that go beyond the manufacturer datasheet - a unique value summary not typically found on DigiKey, Mouser, or Octopart.

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9FGL0841CKILFT - 8-Output PCIe Gen 1-5 Clock Generator | Renesas
9FGL0841CKILFT

9FGL0841CKILFT - 8-Output PCIe Gen 1-5 Clock Generator | Renesas

The Renesas 9FGL0841CKILFT is an 8-output, 3.3V PCIe Gen 1-5 clock generator IC housed in a 48-VFQFPN (6x6 mm) package. Designed for high-volume PCI Express platforms, it provides eight differential HCSL outputs and a dedicated OE# pin per output that supports the PCIe CLKREQ# power-management protocol, enabling per-lane clock gating for energy-efficient server, storage, and workstation designs. A PCIe clock generator is a specialized application-specific clock/timing IC that produces the low-jitter 100 MHz HCSL reference clocks required by PCIe PHY layers. Within the broader clock/timing taxonomy, it sits below general-purpose PLLs and frequency synthesizers but above simple clock buffers, providing spread-spectrum clocking (SSC), per-output enable, and PCIe-compliant jitter and skew budgets in a single device. The 9FGL0841/0851 family supports both Common Clocked (CC) and Separate Reference Independent (SRIS/SRNS) PCIe architectures, with two selectable SSC percentages and SSC-off operation. Key features include 100 MHz HCSL differential outputs, an input that accepts an external reference clock or fundamental-mode crystal, programmable spread spectrum (typically 0% / -0.25% / -0.5%), SMBus-compatible configuration, and per-output OE# pins. The device operates from a single 3.3 V supply and provides low additive jitter suitable for PCIe Gen 5 compliance. The 48-VFQFPN exposed-pad package delivers low thermal resistance for reliable operation in densely populated PCIe riser cards. Typical applications include servers, high-performance computing (HPC) nodes, NVMe storage arrays, networking switches, workstation motherboards, and PCIe expansion cards. The 8-output count suits multi-host and PCIe-switch fabrics where multiple endpoints require independent clock gating for power savings. When designing with this part, pay close attention to the differential trace length matching of the HCSL outputs, the bypass network on VDD, and the SMBus address selection pins. Note that Renesas product pages now describe this device family as supporting PCIe Gen 1-6, while the legacy IDT-branded datasheet (2019) covers Gen 1-4.

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9FGL0851CKILF - 8-Out 3.3V PCIe Gen1-5 Clock Generator | Renesas
9FGL0851CKILF

9FGL0851CKILF - 8-Out 3.3V PCIe Gen1-5 Clock Generator | Renesas

The Renesas 9FGL0851CKILF is an 8-output 3.3V PCIe Gen 1-5 clock generator housed in a 48-pin VFQFPN (KILF) package, designed to replace discrete fanout plus resistor networks on server and high-performance computing boards. Each of the eight HCSL differential outputs supports 100 ohm and 85 ohm terminations with integrated on-die resistors, eliminating four external components per output and simplifying layout. According to the Renesas 9FGL02x1-04x1-06x1-08x1 family datasheet, typical power consumption ranges from 112 mW to 206 mW at 3.3V, with an optional VDDIO rail on the 9FGL06 and 9FGL08 variants that allows roughly 35% power savings at 1.05V. A clock generator is a phase-locked loop (PLL) based timing device that synthesizes one or more low-jitter output frequencies from a single reference input. It sits within the broader clock and timing hierarchy as a PCIe-specific frequency synthesizer (clock generator -> frequency synthesizer -> PLL -> clock and timing IC -> semiconductor). The device produces a Common Clocked (CC) architecture by default, plus Independent Reference with and without spread spectrum, supporting PCIe Separate Reference No Spread (SRNS) and Separate Reference Independent Spread (SRIS) clocking schemes required by Gen 4 and Gen 5. Key features include eight differential HCSL outputs, one OE# pin per output enabling CLKREQ# style power management, two selectable spread spectrum levels plus spread off, and 3.3V core operation. The integrated termination scheme supports both 100 ohm (standard PCIe) and 85 ohm (mobile PCIe or specific OEM platforms) without external resistor changes, reducing BOM count by 32 components versus discrete designs. The architecture combines an internal PLL that multiplies the 25 MHz fundamental reference to 100 MHz PCIe base, followed by per-output dividers and HCSL drivers. Spread spectrum is applied at the output stage to reduce EMI peaks by 0.25% or 0.5% typically. Each output buffer includes dedicated OE# hardware control for fine-grained power gating per slot, critical for server platforms managing idle PCIe links. Typical applications include server motherboards, high-performance computing nodes, NVMe SSD storage controllers, networking switches and routers, and accelerator cards. The 8-output count suits a typical CPU plus downstream PCIe switch topology feeding multiple endpoints. The 1.05V VDDIO option is particularly attractive for boards sharing the platform low-voltage rail with memory and chipset. When designing in, place the device on the same 3.3V plane as the chipset PCIe clock tree and route the 25 MHz crystal or clock source within 200 mils to minimize reference jitter. Use 33 ohm series resistors on each HCSL output to dampen reflections only if the layout exceeds the reference design guideline of 5 inches total trace length. This page synthesizes Renesas part numbering structure, integrated PCIe termination benefits, drop-in alternative strategy, and 1.05V power saving considerations that are not consolidated on any single distributor listing.

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9FGV0841AKILF - 8-Output PCIe Gen1-4 Clock Generator | Renesas
9FGV0841AKILF

9FGV0841AKILF - 8-Output PCIe Gen1-4 Clock Generator | Renesas

The Renesas 9FGV0841AKILF is an 8-output, very low-power PCI Express (PCIe) Gen1 through Gen4 clock generator with integrated on-die 100 ohm output terminations (Zo = 100 ohm), housed in a 48-pin VFQFPN (NDG) package. The device provides one 100 MHz HCSL reference output stage that fans out to eight differential output pairs, and it operates from a 1.8 V core supply. It is qualified for PCIe Gen1, Gen2, Gen3, and Gen4 jitter budgets. A clock generator (or frequency generator) is an integrated circuit that produces one or more precision timing references from a single input reference. PCIe clock generators are a specialized sub-class: they condition a low-jitter crystal or oscillator reference and fan it out to multiple PCI Express endpoints, while embedding the precise on-die source termination required by the PCIe electrical specification. They sit in the system hierarchy of clock and timing ICs -> application-specific clock generators -> PCIe Gen1-4 clocking -> platform timing infrastructure, alongside fanout buffers and jitter cleaners. Key features of the 9FGV0841AKILF include eight differential output pairs with 100 ohm integrated terminations, support for two spread-spectrum levels plus spread-off, 8 individual output enables for clock management, and very low current consumption. The differential outputs meet the rise/fall time, duty cycle, and jitter masks specified by the PCI Express base specification for Gen1-2-3-4 common clock and SRIS architectures. The 1.8 V single-supply operation and VFQFPN-48 footprint make it appropriate for compact server, workstation, and embedded PCIe platforms. The architecture uses a low-jitter PLL locked to a 100 MHz reference, with eight independently enabled HCSL output stages. Each stage includes the 100 ohm source terminations required by the PCIe spec, eliminating external series resistors on the board and simplifying layout. Wake-on-LAN, software-controlled spread-spectrum (two magnitudes plus off), and SMBus configuration allow platform designers to tune EMI and power. Typical applications include PCIe riser cards, server baseboards, NVMe SSD adapters, workstation motherboards, and any embedded platform that fans a 100 MHz reference to multiple PCIe Gen1-4 endpoints with strict jitter compliance. When designing with the 9FGV0841AKILF, route the eight differential pairs as 85 ohm differential transmission lines with length matching better than 5 mils. Decouple each VDD pin with a 0.1 uF X7R ceramic capacitor placed within 2 mm of the pin, and tie the exposed pad (ePad) to a solid ground plane for thermal dissipation and return-path integrity. Confirm the device revision supports the PCIe Gen4 jitter mask (0.5 ps RMS) at the target operating temperature before qualification. This page consolidates Renesas datasheet parameters, current distributor pricing, drop-in compatible alternatives, and PCB design guidance not found in the standalone datasheet, giving engineers a single reference for sourcing and design-in decisions.

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9FGV0841AKLF - 8-Output PCIe Gen1-4 Clock Generator
9FGV0841AKLF

9FGV0841AKLF - 8-Output PCIe Gen1-4 Clock Generator

The Renesas Electronics 9FGV0841AKLF is an 8-output, very-low-power 1.8 V PCIe Gen1-4 clock generator with integrated 100 ohm output terminations, housed in a 48-VFQFPN 6 x 6 mm package. It provides eight independently enabled clock outputs and supports spread spectrum off plus two spread-spectrum levels for clock-management and electromagnetic-interference control. What is a PCIe clock generator? A PCIe clock generator is a timing IC that distributes a stable reference clock to computer, storage, networking, and expansion systems. Its output network must preserve signal integrity across long traces, connectors, and multiple loads. The 9FGV0841 belongs to the clock generator and fanout buffer category, supporting PCI Express timing requirements from Gen1 through Gen4. The key features are eight low-power outputs, integrated 100 ohm terminations, eight output enables, and selectable spread-spectrum modes. The integrated terminations reduce the need for external output termination components and help simplify PCB layouts. Output enables allow unused outputs to be disabled during power-management or system-configuration scenarios, while spread-spectrum options can reduce concentrated clock-related EMI. According to the Renesas 9FGV0841 datasheet, the device is intended for PCIe Gen1-4 applications and provides the 1.8 V clocking architecture required by the target interface family. The verified distributor listing identifies the device as an application-specific clock or frequency generator and fanout buffer. The family also includes related ordering variants, but package suffix, temperature, and production details must be checked against the exact datasheet before substitution. Typical applications include PCI Express endpoint cards, host bridges, PCI Express switches, server and workstation clock distribution, embedded PCIe expansion systems, and high-speed storage controllers. The part is most useful when a design needs multiple locally distributed PCIe clocks and controlled clock state management rather than a single isolated oscillator output. For a robust layout, route clocks as short, matched, continuously referenced traces and place decoupling close to the supply pins. Confirm output enable polarity, supply sequencing, trace impedance, and termination requirements in the manufacturer datasheet before layout release. This page combines verified manufacturer and distributor information with application guidance and clearly identifies unavailable specifications rather than estimating them.

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9ZXL0831AKLF - 8-Output 147MHz Low-Power Buffer | Renesas
9ZXL0831AKLF

9ZXL0831AKLF - 8-Output 147MHz Low-Power Buffer | Renesas

Renesas Electronics 9ZXL0831AKLF is an 8-output differential clock buffer operating at 147 MHz in a 48-VFQFPN package measuring 6 mm by 6 mm. It meets the Intel DB800ZL specification and is designed for PCI Express Generation 1, 2, and 3, QPI, and UPI links. The device provides one input described in the distributor result, eight differential outputs, low power consumption, and fixed external feedback for low clock drift. A clock buffer is a clock and timing IC that reproduces a differential clock across multiple outputs. In this device hierarchy, it functions as a low-power fanout buffer and supports high-speed data-processing platforms where several PCIe, QPI, or UPI links must receive coherent clock signals. The buffer reduces repetitive clock distribution while preserving a common source for timing-critical interfaces. The verified product information identifies the key feature set as eight low-power differential outputs, operation suitable for PCIe Gen 1/2/3 and QPI/UPI, and compliance with the Intel DB800ZL performance requirements. Its 147 MHz operating frequency makes it relevant to server, workstation, and embedded processor platforms that use these serial interconnect technologies. Fixed external feedback is especially relevant where demanding QPI or UPI systems require low drift. The 48-VFQFPN 6 x 6 mm package supports compact surface-mount integration. However, differential clock routing is sensitive to impedance continuity, return paths, and crosstalk. Engineers must reproduce the manufacturer reference layout, use controlled-impedance routing, place decoupling close to supply pins, and verify all eight output channels at system-level operating conditions. Typical uses include PCI Express clock distribution, Intel QPI fanout, UPI processor-to-processor links, server platform clock trees, and high-speed embedded computing systems. The buffer should be selected only after confirming that the target link standard, frequency, voltage levels, topology, and feedback network match the manufacturer requirements. PCB implementation should prioritize short symmetric clock paths, solid ground-plane continuity, and matched output routing. Avoid introducing stubs or test-point discontinuities on high-speed differential pairs, and validate eye, jitter, and skew on the assembled board rather than relying only on simulation. This page combines verified manufacturer and distributor information, explicit data gaps, package context, application guidance, and replacement validation. It distinguishes published facts from values that require the manufacturer datasheet or channel measurements rather than inventing missing electrical, pricing, pinout, or compliance details.

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A3P030-2QNG48 - ProASIC3 FPGA 30K Gates | Microchip Technology
A3P030-2QNG48

A3P030-2QNG48 - ProASIC3 FPGA 30K Gates | Microchip Technology

The Microchip Technology A3P030-2QNG48 is a ProASIC3 Field Programmable Gate Array (FPGA) with 30,000 system gates, 768 logic modules, and 34 user I/Os, housed in a 48-pin VQFN (QNG) package with exposed pad. It operates at a maximum internal frequency of 310 MHz and is fabricated on 130nm flash-based CMOS technology, requiring a 1.5V core supply. A Field Programmable Gate Array (FPGA) is an integrated circuit that can be configured by the customer after manufacturing to implement any digital logic function. Unlike fixed-function ASICs, FPGAs contain an array of programmable logic blocks and interconnects that can be reprogrammed to implement complex digital systems. The ProASIC3 family is a flash-based FPGA, meaning configuration is stored in non-volatile flash memory, allowing instant-on operation and secure design protection without external boot memory. Key features of the A3P030-2QNG48 include 30K system gates, 768 logic modules (equivalent to 330 logic elements), 34 user I/Os, and support for multiple I/O standards including LVCMOS, LVTTL, and PCI. The device offers 1Kbits of FlashROM for non-volatile data storage and is reprogrammable, enabling design updates in the field. The 48-pin VQFN package measures 6x6 mm with a 0.4 mm pitch, providing a compact solution for space-constrained applications. The ProASIC3 architecture uses a flash-based switch fabric that eliminates the need for external configuration PROMs, reducing system cost and board space. The device supports partial reconfiguration and has built-in security features including AES-128 bitstream encryption and a device lock to prevent reverse engineering. The 130nm process technology balances performance with low power consumption, making it suitable for battery-powered and thermally constrained designs. Typical applications for the A3P030-2QNG48 include industrial control, communications interfaces, motor control, and sensor signal processing. Its low density and small footprint make it ideal for glue logic, bus bridging, and state machine implementations where a full-size FPGA would be overkill. The 34 I/Os can interface with various peripherals and memory devices, providing flexible system integration. When designing with this device, ensure proper decoupling of the 1.5V core supply and 2.5V/3.3V I/O supplies. The exposed pad must be soldered to the PCB ground plane for thermal management and electrical grounding. The device supports JTAG programming and in-system programming via the SPI interface, simplifying manufacturing and field updates. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a comprehensive resource for evaluating the A3P030-2QNG48 in their designs.

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