Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Clock/Timing > Clock Generators, PLLs, Frequency Synthesizers

Renesas 5V49EE501NLGI

Name: 5V49EE501NLGI
Brand: Renesas
SKU: 5V49EE501NLGI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 5V49EE501NLGI

Manufacturer:: Renesas

Category:: Clock Generators, PLLs, Frequency Synthesizers

Package:: 24-VFQFN Exposed Pad

Datasheet:: 5V49EE501NLGI.pdf

Description:: IC CLOCK GENERATOR 24QFN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:393

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

The 5V49EE501NLGI from Renesas (formerly IDT) is an EEPROM-programmable clock generator IC with four independent PLLs, supporting non-integer frequency synthesis from a single reference clock up to 200 MHz. It delivers up to six configurable outputs (OUT0–OUT6, with OUT4/OUT5 omitted), programmable for LVTTL, LVPECL, LVDS, or HCSL levels, and operates across -40°C to +85°C industrial temperature range in a 24-pin VFQFPN package.

For engineers reviewing the 5V49EE501NLGI datasheet, 5V49EE501NLGI pinout, 5V49EE501NLGI application, or 5V49EE501NLGI equivalent, key selection considerations include its I²C-programmable loop bandwidth, dual spread-spectrum-capable PLLs (PLL0 and PLL3), internal non-volatile EEPROM for power-up configuration retention, redundant clock inputs with manual/auto switchover, and per-output slew rate and enable/disable control.

Technical Context

The 5V49EE501NLGI integrates four fully independent PLLs-PLL0 and PLL3 support spread spectrum generation and fractional-N synthesis, while PLL1 and PLL2 offer integer-N operation with programmable loop bandwidth. Each PLL uses a 7-bit reference divider and 12-bit feedback divider, enabling precise non-integer frequency synthesis across 4.9 kHz–500 MHz output range.

Its switch matrix routes any PLL output to any of six configurable output banks (OUT0–OUT6), with OUT0 fixed as 3.3 V LVTTL single-ended and remaining outputs supporting differential standards via programmable I/O voltage domains. Configuration is retained in on-chip EEPROM and loaded automatically at power-up, eliminating external configuration memory.

Key Specifications

Parameter	Value and Actual Design Meaning
Reference Input Range	1 MHz–200 MHz; supports crystal (8–50 MHz) or external clock, with programmable load capacitance (3.5–7.5 pF) for optimal crystal drive.
Output Frequency Range	4.9 kHz–500 MHz; LVTTL outputs limited to ≤200 MHz, differential outputs (LVDS/LVPECL/HCSL) support full 500 MHz range.
PLL Architecture	Four independent PLLs; PLL0 and PLL3 support spread spectrum and fractional-N; PLL1/PLL2 are integer-N only; all support programmable loop bandwidth.
I²C Interface	Fast-mode (400 kHz) serial interface; 7-bit slave address 0x6A; used for register programming, EEPROM save/restore, and real-time reconfiguration.
Output Standards	OUT0: 3.3 V LVTTL only; OUT1/OUT2/OUT3/OUT6 pairs configurable as LVTTL/LVCMOS, LVPECL, LVDS, or HCSL via register settings.
Power Supply	3.3 V core (VDD), analog (AVDD), and crystal oscillator (VDDx) supplies; separate decoupling required per supply domain per datasheet layout guidelines.
Operating Temperature	-40°C to +85°C; qualified for industrial applications with guaranteed performance across full range.

Pinout & Package

Package: 24-pin Very Thin Quad Flat No-Lead (VFQFPN), 4 mm × 4 mm, 0.5 mm pitch, exposed thermal pad.

Pin/Terminal	Circuit Role	Design Meaning
VDD (Pins 1, 9, 10, 14, 18)	Core power supply	3.3 V digital supply; requires dedicated 0.01 µF decoupling capacitor per pin; pins may be tied together externally.
XIN/REF (Pin 3)	Reference clock input	Accepts either fundamental-mode quartz crystal (8–50 MHz) or external reference clock (1–200 MHz); internal load capacitance programmable.
CLKIN (Pin 5)	Redundant clock input	External reference clock only (no crystal); selected via CLKSEL and PRIMSRC bits; enables failover during primary clock loss.
SDAT / SCLK (Pins 11, 12)	I²C bidirectional interface	Open-drain data (SDAT) and clock (SCLK); require external pull-ups per I²C spec; used for configuration, EEPROM save/restore, and runtime updates.
OUT0–OUT6 (Pins 7, 8, 16, 17, 23)	Programmable clock outputs	OUT0: LVTTL-only, no output divider; OUT1/2/3/6 support differential standards via switch matrix routing and I/O standard registers.
SD/OE (Pin 22)	Shutdown/enable control	Active-low (default) or active-high (programmable via SP bit); globally disables outputs or powers down PLLs depending on SH bit setting.

Key Features

Feature	Design Value
Four independent PLLs with individual dividers	Each PLL has 7-bit reference (D) and 12-bit feedback (N) dividers; enables four unique, non-integer-related output frequencies from one reference.
On-chip EEPROM for configuration persistence	Eliminates need for external configuration memory; auto-loads stored settings at power-up; programmed via I²C PROGSAVE/PROGRESTORE commands.
Dual spread-spectrum PLLs (PLL0 & PLL3)	Reduces EMI in noise-sensitive systems; spread profile, amplitude, and modulation frequency fully programmable per PLL; supports center/down spread modes.
Redundant clock architecture with switchover	Supports automatic (revertive) or manual clock source selection between XIN/REF and CLKIN; prevents system downtime during clock failure.
Flexible output routing and level control	Switch matrix allows any PLL output to drive any output bank; each output supports programmable slew rate, inversion, and enable/disable for timing optimization and jitter reduction.

Applications

High-Speed Networking Switch	Multi-Standard Baseband Processor
Use Scenario: Synchronizing SerDes lanes, MAC controllers, and packet buffer interfaces in 10/25/100 GbE switches requiring low-jitter, multi-frequency clocking. IC Role / Device Role / Timing Role: Clock synthesizer generating independent 156.25 MHz (Ethernet), 312.5 MHz (PCIe), and 125 MHz (management bus) clocks from a single 25 MHz crystal. Use Value: Reduces board space and BOM count by replacing multiple discrete oscillators; spread spectrum on PLL0 lowers EMI emissions below FCC Class A limits.	Use Scenario: Providing synchronized clocks to RF transceivers, ADC/DAC blocks, and baseband DSP cores in 4G/5G small cell base stations. IC Role / Device Role / Timing Role: Generating 30.72 MHz (LTE sampling), 122.88 MHz (5G NR), and 100 MHz (PCIe Gen3) clocks with <1 ps RMS jitter (12 kHz–20 MHz) for signal integrity. Use Value: Programmable loop bandwidth allows jitter attenuation tuning for RF sampling paths; redundant CLKIN supports backup GPS-disciplined reference during GNSS outage.
Consumer AV Receiver with HDMI Audio	Industrial PLC with EtherCAT Master
Use Scenario: Delivering precise audio sample clocks (44.1 kHz, 48 kHz, 96 kHz, 192 kHz) and video pixel clocks (74.25 MHz, 148.5 MHz) in multi-format home theater receivers. IC Role / Device Role / Timing Role: Synthesizing asynchronous audio and video clocks from a single 24.576 MHz crystal using fractional-N PLL0 and integer-N PLL1/PLL2. Use Value: Internal EEPROM stores multiple pre-calibrated configurations; SEL[2:0] pins allow hardware-selectable profiles for different input sources (HDMI, SPDIF, USB).	Use Scenario: Clocking EtherCAT master controller, real-time Ethernet PHY, and safety-critical I/O modules in factory automation PLCs requiring deterministic timing. IC Role / Device Role / Timing Role: Generating 100 MHz EtherCAT cycle clock and 125 MHz IEEE 1588 PTP timestamp clock with sub-nanosecond phase alignment. Use Value: Programmable output inversion minimizes bimodal jitter on critical timing paths; SD/OE pin enables synchronized shutdown during safe torque off (STO) sequences.

High-Speed Networking Switch

Multi-Standard Baseband Processor

Use Scenario: Synchronizing SerDes lanes, MAC controllers, and packet buffer interfaces in 10/25/100 GbE switches requiring low-jitter, multi-frequency clocking.

IC Role / Device Role / Timing Role: Clock synthesizer generating independent 156.25 MHz (Ethernet), 312.5 MHz (PCIe), and 125 MHz (management bus) clocks from a single 25 MHz crystal.

Use Value: Reduces board space and BOM count by replacing multiple discrete oscillators; spread spectrum on PLL0 lowers EMI emissions below FCC Class A limits.

Use Scenario: Providing synchronized clocks to RF transceivers, ADC/DAC blocks, and baseband DSP cores in 4G/5G small cell base stations.

IC Role / Device Role / Timing Role: Generating 30.72 MHz (LTE sampling), 122.88 MHz (5G NR), and 100 MHz (PCIe Gen3) clocks with <1 ps RMS jitter (12 kHz–20 MHz) for signal integrity.

Use Value: Programmable loop bandwidth allows jitter attenuation tuning for RF sampling paths; redundant CLKIN supports backup GPS-disciplined reference during GNSS outage.

Consumer AV Receiver with HDMI Audio

Industrial PLC with EtherCAT Master

Use Scenario: Delivering precise audio sample clocks (44.1 kHz, 48 kHz, 96 kHz, 192 kHz) and video pixel clocks (74.25 MHz, 148.5 MHz) in multi-format home theater receivers.

IC Role / Device Role / Timing Role: Synthesizing asynchronous audio and video clocks from a single 24.576 MHz crystal using fractional-N PLL0 and integer-N PLL1/PLL2.

Use Value: Internal EEPROM stores multiple pre-calibrated configurations; SEL[2:0] pins allow hardware-selectable profiles for different input sources (HDMI, SPDIF, USB).

Use Scenario: Clocking EtherCAT master controller, real-time Ethernet PHY, and safety-critical I/O modules in factory automation PLCs requiring deterministic timing.

IC Role / Device Role / Timing Role: Generating 100 MHz EtherCAT cycle clock and 125 MHz IEEE 1588 PTP timestamp clock with sub-nanosecond phase alignment.

Use Value: Programmable output inversion minimizes bimodal jitter on critical timing paths; SD/OE pin enables synchronized shutdown during safe torque off (STO) sequences.

Equivalent & Alternatives

The following parts are listed as comparable options for similar clock generator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si5341-B-GM	4-output, 4-input clock generator with JESD204B support; higher integration (integrated LDOs, more advanced jitter cleaning); larger 32-pin QFN package.	Better suited for high-speed serial link timing (JESD204B/C, CPRI); lacks redundant clock switchover and EEPROM-based power-up restore.	Select Si5341-B-GM when ultra-low jitter (<80 fs RMS) and JESD204B compliance are mandatory; avoid if board space or EEPROM-based configuration is critical.
ICS8430I-01T	3-output, 2-PLL clock generator; no spread spectrum; no EEPROM; fixed 3.3 V LVTTL/LVCMOS outputs only; smaller 16-pin TSSOP package.	Targeted at cost-sensitive, lower-complexity applications (e.g., basic microcontroller clocks); no differential outputs or redundancy.	Select ICS8430I-01T only for simple, single-standard clocking where programmability, redundancy, and differential signaling are unnecessary.

Compared with Si5341-B-GM and ICS8430I-01T, the 5V49EE501NLGI uniquely balances EEPROM-based configuration persistence, dual spread-spectrum PLLs, redundant clock inputs, and flexible differential output support in a compact 24-pin VFQFPN-making it optimal for industrial and telecom systems requiring field-upgradable, robust, multi-standard timing without external configuration memory.

Availability

The 5V49EE501NLGI is available at Aetrix Electronics and suitable for high-speed networking switches, 5G baseband processors, consumer AV receivers, industrial PLCs, and telecom infrastructure equipment requiring stable component supply, long-term lifecycle support, and consistent electrical performance across temperature and voltage variation.

Supply support for 5V49EE501NLGI 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

Renesas Electronics Corporation acquired Integrated Device Technology (IDT) in 2019 and now develops and manufactures high-performance timing, memory, and analog solutions for communications, computing, and industrial markets.

The 5V49EE501NLGI belongs to IDT's legacy EEPROM-programmable clock generator family, designed specifically for systems demanding flexible, field-configurable, multi-frequency clock synthesis with built-in redundancy and EMI reduction-targeting datacom, telecom, and high-end consumer applications.

FAQ

What is the maximum output frequency supported by the 5V49EE501NLGI for LVDS and LVPECL outputs?

The 5V49EE501NLGI supports LVDS and LVPECL outputs up to 500 MHz, as confirmed in the datasheet's "Output Frequency Range" specification. This capability enables direct clocking of high-speed SerDes interfaces, PCIe Gen3/Gen4 PHYs, and DDR4 memory controllers without external frequency multiplication. The 500 MHz limit applies specifically to differential output banks (OUT1/OUT2, OUT3/OUT6 pairs); single-ended LVTTL outputs (including OUT0) are rated to 200 MHz maximum.

Does the 5V49EE501NLGI require external configuration memory to retain settings after power cycling?

No, the 5V49EE501NLGI does not require external configuration memory. It contains an internal non-volatile EEPROM that stores the complete register configuration. Upon power-up, the device automatically restores this configuration to its internal registers, ensuring immediate operational readiness without host processor intervention. Configuration is saved to EEPROM using the I²C PROGSAVE command and loaded via PROGRESTORE.

How many PLLs in the 5V49EE501NLGI support spread spectrum generation, and which ones?

Two PLLs in the 5V49EE501NLGI support spread spectrum generation: PLL0 and PLL3. Both offer fully programmable spread profile, modulation frequency, and amplitude. PLL0 uses sigma-delta modulation with adjustable TSSC/NSSC/SS_OFFSET parameters, while PLL3 implements a distinct spread-spectrum architecture using SS_D3 and SSVCO registers. PLL1 and PLL2 do not support spread spectrum and are integer-N only.

Can the 5V49EE501NLGI generate different logic levels on its output banks simultaneously?

Yes, the 5V49EE501NLGI can configure different logic levels on its output banks simultaneously. OUT0 is fixed as 3.3 V LVTTL. OUT1/OUT2, OUT3/OUT6 pairs can be independently set to LVTTL/LVCMOS, LVPECL, LVDS, or HCSL via dedicated I/O standard control registers. This allows concurrent generation of, for example, 100 MHz LVTTL for a microcontroller and 156.25 MHz LVDS for a SerDes PHY-all from a single device and reference clock.

What is the function of the SD/OE pin on the 5V49EE501NLGI, and how is its polarity controlled?

The SD/OE pin on the 5V49EE501NLGI serves as a global shutdown/output enable control. Its polarity (active-HIGH or active-LOW) is programmable via the SP bit (register 0x02). By default (SP = 0), it is active-LOW; setting SP = 1 makes it active-HIGH. Functionally, it can either disable all outputs (Hi-Z) or power down the entire PLL subsystem depending on the SH bit setting, enabling coordinated power management in systems with strict energy budgets.

5V49EE501NLGI Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: VersaClock® III

Package/Case:: 24-VFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Type:: Clock Generator, Multiplexer

PLL:: Yes with Bypass

Input:: LVCMOS, LVTTL, Crystal

Output:: HCSL, LVCMOS, LVDS, LVPECL, LVTTL

Number of Circuits:: 1

Ratio - Input:Output:: 2:5

Differential - Input:Output:: No/Yes

Frequency - Max:: 500MHz

Divider/Multiplier:: Yes/Yes

Voltage - Supply:: 3.135V ~ 3.465V

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 24-QFN (4x4)

5V49EE501NLGI FAQ

1.How can I place an order for 5V49EE501NLGI through Aetrix?

Please submit a Request for Quotation (RFQ) for 5V49EE501NLGI 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 5V49EE501NLGI reliable?

The price and inventory of 5V49EE501NLGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5V49EE501NLGI is usually 5 days.

3.What payment methods are accepted for 5V49EE501NLGI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5V49EE501NLGI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5V49EE501NLGI?

5V49EE501NLGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5V49EE501NLGI 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 5V49EE501NLGI?

For technical support, including 5V49EE501NLGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5V49EE501NLGI requirements.

6.How does Aetrix verify that 5V49EE501NLGI is sourced from the original manufacturer or authorized distributors?

All 5V49EE501NLGI 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 5V49EE501NLGI meets industry standards.

7.What is the process for return or replacement of 5V49EE501NLGI?

All 5V49EE501NLGI units undergo pre-shipment inspection (PSI). If there is an issue with 5V49EE501NLGI, 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 5V49EE501NLGI part is unused and in its original packaging.

Return procedure for 5V49EE501NLGI:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…