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Home > Products > Integrated Circuits (ICs) > Logic > Translators, Level Shifters

Renesas 85320AMILF

Name: 85320AMILF
Brand: Renesas
SKU: 85320AMILF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 85320AMILF

Manufacturer:: Renesas

Category:: Translators, Level Shifters

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Datasheet:: 85320AMILF.pdf

Description:: IC TRANSLTR UNIDIRECTIONAL 8SOIC

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Product details

Overview

85320AMILF from Integrated Device Technology (IDT) is an LVCMOS/LVTTL-to-differential LVPECL clock translator IC with single-ended input and differential 2.5V/3.3V LVPECL output pair, supporting up to 267MHz operation at 3.3V supply, 215MHz at 2.5V supply, and featuring 0.05ps typical additive phase jitter (RMS, 12kHz–20MHz), 275ps max part-to-part skew, and operation across –40°C to +85°C ambient. It enables high-fidelity clock distribution in FPGA, ASIC, and SerDes timing interfaces.

For engineers reviewing the 85320AMILF datasheet, 85320AMILF pinout, 85320AMILF application, or 85320AMILF equivalent, key selection criteria include LVPECL output voltage swing (0.6–1.0V), propagation delay (0.8–1.4ns at 3.3V), input compatibility with LVCMOS/LVTTL logic levels, termination requirements for 50Ω transmission lines, and dual-supply support (3.135–3.465V or 2.375–2.625V).

Technical Context

The 85320AMILF implements a single-stage differential buffer architecture with internal pull-up resistors (51kΩ) on the CLK input, enabling direct connection to LVCMOS or LVTTL sources without external biasing. Its output stage delivers true LVPECL-compatible differential signals referenced to V_CC, requiring termination to V_CC − 2V for proper DC operating point.

It operates in two distinct supply configurations: 3.3V mode (V_CC = 3.135–3.465V) yields 267MHz max frequency and 275ps skew; 2.5V mode (V_CC = 2.375–2.625V) supports 215MHz max frequency and 375ps skew. Output rise/fall times are specified at 200–700ps (20%–80%), and duty cycle remains tightly controlled at 45–55% across temperature and voltage.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	3.135–3.465V or 2.375–2.625V - supports dual-voltage system integration without level-shifting circuitry.
Max Output Frequency	267MHz at 3.3V - sufficient for PCIe Gen1/Gen2 reference clocks and DDR2/DDR3 memory interface timing.
Additive Phase Jitter (RMS)	0.05ps (12kHz–20MHz) - ensures low-jitter clock delivery critical for high-speed serial links and ADC sampling clocks.
Part-to-Part Skew	275ps maximum at 3.3V - enables precise multi-device synchronization in parallel clock distribution networks.
Output Voltage Swing	0.6–1.0V peak-to-peak - meets LVPECL standard for driving 50Ω terminated lines with robust noise margin.
Propagation Delay	0.8–1.4ns (3.3V) - provides predictable timing budget for synchronous system design and setup/hold margin calculation.
Input Compatibility	LVCMOS/LVTTL - accepts standard logic-level clocks (e.g., from microcontrollers or crystal oscillators) without external conditioning.

Pinout & Package

85320AMILF is housed in an 8-pin lead-free SOIC package (M suffix), 3.90mm × 4.92mm × 1.37mm body, JEDEC MS-012 compliant, with exposed pad not present and thermal resistance θ_JA = 112.7°C/W (0 lfpm, multilayer PCB).

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 6	nc	No-connect terminals - must remain unconnected; no internal bonding or function.
2, 3	Q / nQ	Differential LVPECL output pair - requires 50Ω termination to V_CC − 2V for correct DC bias and signal integrity.
5	V_EE	Negative supply rail - tied to ground (0V) in standard LVPECL configuration; not internally connected to output stage reference.
7	CLK	Single-ended clock input with 51kΩ internal pull-up - accepts LVCMOS/LVTTL logic levels; no external bias required.
8	V_CC	Positive supply - powers both input buffer and LVPECL output stage; must be decoupled with 0.1µF + 10µF capacitors near pin.

Key Features

Feature	Design Value
LVPECL output compliance	Meets JEDEC-standard LVPECL voltage levels (V_OH = V_CC−1.4V to V_CC−0.9V; V_OL = V_CC−2.0V to V_CC−1.7V) when terminated to V_CC−2V.
Low additive jitter	0.05ps RMS (12kHz–20MHz) - preserves timing margin in high-speed serial receivers (e.g., SATA, USB 3.0 PHYs).
Dual-supply operation	Valid operation at either 3.3V or 2.5V V_CC - simplifies integration into mixed-voltage systems without external regulators.
Input-level flexibility	Accepts LVCMOS (V_IH ≥ 2.0V @ 3.3V, ≥1.6V @ 2.5V) and LVTTL (V_IL ≤ 0.9V @ 2.5V) inputs - eliminates need for discrete level translators.
Thermal reliability	Junction temperature remains ≤97.1°C at 85°C ambient with full switching load - validated for industrial-grade continuous operation.

Applications

FPGA Clock Distribution	SerDes Reference Clocking
Use Scenario: Distributing a single-board clock source to multiple FPGA banks requiring differential LVPECL inputs. IC Role / Device Role / Timing Role: Translates a single-ended LVCMOS oscillator output into a low-skew, low-jitter differential LVPECL pair for fanout to multiple FPGA clock pins. Use Value: Enables deterministic inter-bank skew control (≤275ps) and maintains <0.05ps jitter for stable setup/hold timing across high-speed transceivers.	Use Scenario: Providing a clean reference clock to multi-gigabit SerDes blocks in communication SoCs or network processors. IC Role / Device Role / Timing Role: Acts as a jitter-attenuating buffer between a crystal oscillator and SerDes PLL reference input, meeting stringent phase noise requirements. Use Value: Delivers 0.05ps RMS additive jitter and 267MHz bandwidth - directly satisfies PCIe Gen2 and SATA Gen2 reference clock specs.
ASIC Timing Interface	DDR Memory Controller Clocking
Use Scenario: Driving differential clock inputs of custom ASICs with LVPECL-compatible timing receivers. IC Role / Device Role / Timing Role: Converts board-level TTL/LVCMOS clock signals into properly biased LVPECL outputs compatible with ASIC clock tree inputs. Use Value: Eliminates need for discrete resistor networks or active level shifters while maintaining sub-300ps part-to-part skew across multiple ASICs.	Use Scenario: Generating matched differential clocks for DDR2/DDR3 memory controllers where clock and strobe pairs require tight skew control. IC Role / Device Role / Timing Role: Provides synchronized Q/nQ outputs to drive complementary clock paths with minimal duty-cycle distortion (45–55%). Use Value: Ensures <1.4ns propagation delay matching and 45–55% duty cycle - critical for DDR write-leveling and read-training accuracy.

FPGA Clock Distribution

SerDes Reference Clocking

Use Scenario: Distributing a single-board clock source to multiple FPGA banks requiring differential LVPECL inputs.

IC Role / Device Role / Timing Role: Translates a single-ended LVCMOS oscillator output into a low-skew, low-jitter differential LVPECL pair for fanout to multiple FPGA clock pins.

Use Value: Enables deterministic inter-bank skew control (≤275ps) and maintains <0.05ps jitter for stable setup/hold timing across high-speed transceivers.

Use Scenario: Providing a clean reference clock to multi-gigabit SerDes blocks in communication SoCs or network processors.

IC Role / Device Role / Timing Role: Acts as a jitter-attenuating buffer between a crystal oscillator and SerDes PLL reference input, meeting stringent phase noise requirements.

Use Value: Delivers 0.05ps RMS additive jitter and 267MHz bandwidth - directly satisfies PCIe Gen2 and SATA Gen2 reference clock specs.

ASIC Timing Interface

DDR Memory Controller Clocking

Use Scenario: Driving differential clock inputs of custom ASICs with LVPECL-compatible timing receivers.

IC Role / Device Role / Timing Role: Converts board-level TTL/LVCMOS clock signals into properly biased LVPECL outputs compatible with ASIC clock tree inputs.

Use Value: Eliminates need for discrete resistor networks or active level shifters while maintaining sub-300ps part-to-part skew across multiple ASICs.

Use Scenario: Generating matched differential clocks for DDR2/DDR3 memory controllers where clock and strobe pairs require tight skew control.

IC Role / Device Role / Timing Role: Provides synchronized Q/nQ outputs to drive complementary clock paths with minimal duty-cycle distortion (45–55%).

Use Value: Ensures <1.4ns propagation delay matching and 45–55% duty cycle - critical for DDR write-leveling and read-training accuracy.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LVCMOS/LVTTL-to-LVPECL translation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICS85310AMILF	Single-output LVPECL translator with identical pinout and 3.3V-only operation (no 2.5V mode); same jitter (0.05ps) but lower max frequency (200MHz).	Limited to 3.3V systems; unsuitable for 2.5V LVPECL domains or mixed-voltage designs requiring 2.5V compatibility.	Select only if system uses exclusively 3.3V supply and does not require >200MHz operation or 2.5V LVPECL support.
MC100LVEL11DR2G	ON Semiconductor ECL translator with 3.3V supply, 1.5ns max propagation delay, and higher additive jitter (0.15ps typical); requires external V_BB bias.	Needs external bias network and has looser jitter spec - less suitable for jitter-sensitive SerDes or high-speed ADC applications.	Consider only when legacy ECL infrastructure exists and 0.05ps jitter is not required; adds layout complexity due to V_BB routing.

Compared with ICS85310AMILF and MC100LVEL11DR2G, the 85320AMILF uniquely supports dual-supply operation (2.5V/3.3V), achieves the lowest additive phase jitter (0.05ps), and delivers the highest frequency capability (267MHz) without external bias components - making it optimal for modern mixed-voltage, high-speed timing architectures.

Availability

85320AMILF is available at Aetrix Electronics and suitable for FPGA clock distribution, SerDes reference clocking, ASIC timing interfaces, DDR memory controller clocking, and industrial embedded timing applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 85320AMILF 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

Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and power management solutions for communications, computing, and industrial markets.

The 85320AMILF belongs to IDT's HiPerClockS™ family of high-performance clock translators, designed specifically for low-jitter, low-skew clock distribution in high-speed digital systems including FPGAs, ASICs, and memory subsystems.

FAQ

What supply voltages does the 85320AMILF support?

The 85320AMILF supports two distinct supply configurations: 3.3V operation with V_CC ranging from 3.135V to 3.465V, and 2.5V operation with V_CC from 2.375V to 2.625V. It cannot operate at intermediate voltages like 2.8V or 3.0V. The 85320AMILF must be powered using one of these two rails - not both simultaneously - and its performance parameters (e.g., max frequency, skew) are specified separately for each mode per the datasheet.

How is the 85320AMILF CLK input biased, and what logic families does it accept?

The 85320AMILF CLK input features an internal 51kΩ pull-up resistor, allowing direct connection to LVCMOS or LVTTL sources without external biasing. It accepts LVCMOS inputs with V_IH ≥ 2.0V (at 3.3V supply) or ≥1.6V (at 2.5V supply), and LVTTL inputs with V_IL ≤ 0.9V (at 2.5V). The 85320AMILF does not require external resistors or voltage dividers to interface with standard logic-level clock generators.

What termination is required for the 85320AMILF Q/nQ outputs?

The 85320AMILF Q/nQ outputs are true LVPECL drivers and must be terminated to V_CC − 2V using either discrete resistors (e.g., 50Ω to V_CC − 2V) or current-source loads. For 3.3V operation, this means termination to 1.3V; for 2.5V operation, to 0.5V (near ground). The 85320AMILF datasheet provides specific schematics (Figures 1A/B, 2A–C) showing valid termination topologies - improper termination will cause signal degradation or failure to meet LVPECL voltage specifications.

Does the 85320AMILF support operation at 1.8V or other supply voltages?

No, the 85320AMILF is not rated for 1.8V or any supply voltage outside its specified ranges: 3.135–3.465V (3.3V mode) or 2.375–2.625V (2.5V mode). Applying 1.8V to V_CC will result in undefined behavior, failure to meet AC/DC specifications, and potential damage over time. The 85320AMILF does not include internal regulators or level-shifting circuitry to accommodate non-standard supplies.

What is the meaning of "nc" pins on the 85320AMILF, and can they be grounded?

Pins 1, 4, and 6 of the 85320AMILF are marked "nc" (no connect) and contain no internal bond wires or circuitry - they are electrically isolated. These pins must remain unconnected; grounding, tying to V_CC, or routing traces to them is prohibited and may compromise package integrity or thermal performance. The 85320AMILF datasheet explicitly states these terminals are unused and provides no functional specification for them.

85320AMILF Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:

Packaging:: Tube

Product Status:: Obsolete

Translator Type:: Mixed Signal

Channel Type:: Unidirectional

Number of Circuits:: 1

Channels per Circuit:: 1

Voltage - VCCA:: -

Voltage - VCCB:: -

Input Signal:: LVCMOS, LVTTL

Output Signal:: LVPECL

Output Type:: Differential

Data Rate:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Features:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC (0.154", 3.90mm Width)

85320AMILF FAQ

1.How can I place an order for 85320AMILF through Aetrix?

Please submit a Request for Quotation (RFQ) for 85320AMILF 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 85320AMILF reliable?

The price and inventory of 85320AMILF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 85320AMILF is usually 5 days.

3.What payment methods are accepted for 85320AMILF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 85320AMILF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 85320AMILF?

85320AMILF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 85320AMILF 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 85320AMILF?

For technical support, including 85320AMILF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 85320AMILF requirements.

6.How does Aetrix verify that 85320AMILF is sourced from the original manufacturer or authorized distributors?

All 85320AMILF 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 85320AMILF meets industry standards.

7.What is the process for return or replacement of 85320AMILF?

All 85320AMILF units undergo pre-shipment inspection (PSI). If there is an issue with 85320AMILF, 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 85320AMILF part is unused and in its original packaging.

Return procedure for 85320AMILF:

1.Submit a request within 90 days.

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

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