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

Renesas 85320AMILFT

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

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Part No.:: 85320AMILFT

Manufacturer:: Renesas

Category:: Translators, Level Shifters

Package:

Datasheet:: 85320AMILFT.pdf

Description:: IC TRANSLTR UNIDIRECTIONAL 8SOIC

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Product details

Overview

85320AMILFT from Integrated Device Technology (IDT) is an LVCMOS/LVTTL-to-differential LVPECL clock translator with single-ended CLK input and differential Q/nQ LVPECL outputs. It operates at 3.3V or 2.5V supply, supports up to 267MHz output frequency at 3.3V, delivers 0.05ps typical additive phase jitter (RMS, 12kHz–20MHz), and achieves ≤275ps part-to-part skew - used in high-speed serial link clock distribution and FPGA/ASIC interface timing circuits.

For engineers reviewing the 85320AMILFT datasheet, 85320AMILFT pinout, 85320AMILFT application, or 85320AMILFT equivalent, key selection criteria include dual-supply LVPECL translation capability, sub-1ns propagation delay, low-jitter performance under 3.3V/2.5V operation, SOIC-8 package compatibility, and termination requirements for LVPECL differential signaling.

Technical Context

The 85320AMILFT implements a single-ended-to-differential translation architecture using internal LVPECL output drivers with V_CC-referenced termination. Its CLK input includes internal 51kΩ pull-up resistors and accepts LVCMOS/LVTTL logic levels across both 3.3V and 2.5V supply configurations.

Output stage design targets 50Ω transmission line driving with defined DC termination to V_CC−2V; output voltage swing is 0.6–1.0V_PP, and duty cycle remains within 45–55% across full temperature range (−40°C to +85°C).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	3.3V ±5% (3.135–3.465V) or 2.5V ±5% (2.375–2.625V); enables dual-voltage system integration
Max Output Frequency	267MHz at 3.3V supply; supports PCIe Gen1/Gen2 reference clocks and Gigabit Ethernet PHY timing
Additive Phase Jitter (RMS)	0.05ps typical (12kHz–20MHz integration); meets stringent jitter budgets for SerDes clocking
Propagation Delay	0.8–1.4ns (3.3V), 0.8–1.7ns (2.5V); ensures predictable timing alignment in synchronous systems
Part-to-Part Skew	≤275ps max (3.3V), ≤375ps max (2.5V); critical for multi-device clock fanout synchronization
Output Swing	0.6–1.0V_PP into 50Ω load terminated to V_CC−2V; matches standard LVPECL receiver thresholds
Input Capacitance	4pF; minimizes loading on upstream clock sources such as crystal oscillators or MCU GPIOs

Pinout & Package

85320AMILFT is housed in an 8-pin lead-free SOIC package (M suffix), 3.90mm × 4.92mm × 1.37mm body, JEDEC MS-012 compliant. Pin 1 is top-left corner (notch-marked), with pins numbered counter-clockwise.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 6	No Connect (nc)	Internally unconnected; must remain floating or grounded per layout best practice
2, 3	Q / nQ	Differential LVPECL output pair; requires 50Ω termination to V_CC−2V for proper logic levels
5	V_EE	Negative supply rail; tied to ground in standard LVPECL configurations
7	CLK	LVCMOS/LVTTL single-ended clock input; features internal 51kΩ pull-up resistor
8	V_CC	Positive supply (3.3V or 2.5V); decoupling capacitor required adjacent to pin

Key Features

Feature	Design Value
Dual-supply LVPECL output support	Operates identically at 3.3V or 2.5V V_CC, enabling reuse across mixed-voltage board designs
Low-additive-jitter translation	0.05ps RMS phase jitter preserves signal integrity in high-speed serial timing chains
Integrated input pull-up	51kΩ internal resistor on CLK pin eliminates external biasing components and reduces BOM count
Controlled rise/fall time	200–700ps (20%–80%) ensures clean edge transitions without excessive EMI or signal reflection
Lead-free RoHS 6 compliance	M-package SOIC meets environmental regulations without compromising thermal or electrical performance

Applications

PCIe Reference Clock Distribution	FPGA High-Speed I/O Timing
Use Scenario: Distributing 100MHz PCIe Gen1 reference clock from a single oscillator to multiple slots or endpoints. IC Role / Device Role / Timing Role: LVCMOS-to-LVPECL level shifter and fanout buffer ensuring matched skew and low jitter across lanes. Use Value: Enables deterministic inter-lane skew ≤275ps and additive jitter <0.05ps, meeting PCIe Gen1 clock compliance requirements.	Use Scenario: Driving LVPECL-compatible transceivers (e.g., Xilinx GTY, Intel Stratix 10 transceivers) from an FPGA's LVCMOS clock output. IC Role / Device Role / Timing Role: Single-ended clock translator providing clean, terminated differential signals for high-speed SERDES interfaces. Use Value: Eliminates need for discrete resistor networks and improves signal fidelity via controlled 0.6–1.0V_PP swing and 45–55% duty cycle.
Optical Module Timing Interface	Industrial Ethernet PHY Synchronization
Use Scenario: Converting a microcontroller-generated LVCMOS clock into LVPECL format for SFP+ or QSFP+ module timing control. IC Role / Device Role / Timing Role: Level-shifting translator supporting hot-plug compatible 2.5V LVPECL operation with V_CC−2V termination near ground. Use Value: Allows direct 2.5V LVPECL drive without level-shifting ICs or active terminations, reducing component count and board area.	Use Scenario: Providing synchronized 125MHz clock to multiple industrial Ethernet PHYs (e.g., Marvell 88E1512) requiring LVPECL inputs. IC Role / Device Role / Timing Role: Low-skew, low-jitter clock buffer translating MCU or oscillator output to differential LVPECL. Use Value: Ensures deterministic inter-PHY skew and jitter performance required for IEEE 1588 PTP timestamp accuracy in time-sensitive networking.

PCIe Reference Clock Distribution

FPGA High-Speed I/O Timing

Use Scenario: Distributing 100MHz PCIe Gen1 reference clock from a single oscillator to multiple slots or endpoints.

IC Role / Device Role / Timing Role: LVCMOS-to-LVPECL level shifter and fanout buffer ensuring matched skew and low jitter across lanes.

Use Value: Enables deterministic inter-lane skew ≤275ps and additive jitter <0.05ps, meeting PCIe Gen1 clock compliance requirements.

Use Scenario: Driving LVPECL-compatible transceivers (e.g., Xilinx GTY, Intel Stratix 10 transceivers) from an FPGA's LVCMOS clock output.

IC Role / Device Role / Timing Role: Single-ended clock translator providing clean, terminated differential signals for high-speed SERDES interfaces.

Use Value: Eliminates need for discrete resistor networks and improves signal fidelity via controlled 0.6–1.0V_PP swing and 45–55% duty cycle.

Optical Module Timing Interface

Industrial Ethernet PHY Synchronization

Use Scenario: Converting a microcontroller-generated LVCMOS clock into LVPECL format for SFP+ or QSFP+ module timing control.

IC Role / Device Role / Timing Role: Level-shifting translator supporting hot-plug compatible 2.5V LVPECL operation with V_CC−2V termination near ground.

Use Value: Allows direct 2.5V LVPECL drive without level-shifting ICs or active terminations, reducing component count and board area.

Use Scenario: Providing synchronized 125MHz clock to multiple industrial Ethernet PHYs (e.g., Marvell 88E1512) requiring LVPECL inputs.

IC Role / Device Role / Timing Role: Low-skew, low-jitter clock buffer translating MCU or oscillator output to differential LVPECL.

Use Value: Ensures deterministic inter-PHY skew and jitter performance required for IEEE 1588 PTP timestamp accuracy in time-sensitive networking.

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
ICS85310AMILFT	Single-output LVPECL translator with identical pinout and specs but no internal pull-up on CLK	Requires external 51kΩ pull-up resistor; otherwise functionally interchangeable in fixed-bias designs	Select when external bias control is preferred or legacy layout re-use is needed
Si53301-A-GM	Programmable 1:2 LVPECL buffer with integrated PLL; higher power, larger QFN32 package, and configurable output formats	Supports frequency translation and jitter cleaning; not drop-in - requires PCB redesign and configuration firmware	Select only when jitter attenuation or frequency synthesis beyond translation is required

Compared with ICS85310AMILFT and Si53301-A-GM, the 85320AMILFT offers integrated CLK pull-up, minimal footprint (SOIC-8), and lowest power consumption (25mA), making it optimal for cost-sensitive, space-constrained, fixed-frequency LVPECL translation where simplicity and layout efficiency are prioritized.

Availability

85320AMILFT is available at Aetrix Electronics and suitable for PCIe reference clock distribution, FPGA high-speed I/O timing, optical module timing interfaces, and industrial Ethernet PHY synchronization requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability.

Supply support for 85320AMILFT 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 sensor solutions for communications, computing, and industrial markets.

The 85320AMILFT 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 servers, networking equipment, and programmable logic platforms.

FAQ

What supply voltages does the 85320AMILFT support?

The 85320AMILFT supports two operating supply voltages: 3.3V ±5% (3.135–3.465V) and 2.5V ±5% (2.375–2.625V). Both configurations are fully specified in the datasheet, with distinct AC characteristics - maximum output frequency is 267MHz at 3.3V and 215MHz at 2.5V. The 85320AMILFT must be powered from one supply at a time; dual-supply operation is not supported.

Does the 85320AMILFT require external termination resistors?

Yes, the 85320AMILFT requires external termination for its Q/nQ LVPECL outputs. Each differential pair must be terminated to V_CC−2V using either a Thevenin network (e.g., 62.5Ω to V_CC−2V and 133Ω to ground) or a single 50Ω resistor to V_CC−2V, depending on voltage level. For 2.5V operation, V_CC−2V ≈ 0.5V, so termination approximates a 50Ω load to ~0.5V. The 85320AMILFT itself does not integrate termination resistors.

What is the purpose of the V_EE pin on the 85320AMILFT?

The V_EE pin on the 85320AMILFT is the negative supply terminal for the LVPECL output stage and must be connected to ground in all standard applications. Unlike traditional ECL, LVPECL uses a single positive supply (V_CC) with outputs referenced to V_CC−2V; V_EE serves as the return path for output current and is not a separate negative rail. Leaving V_EE unconnected will prevent proper output functionality.

Can the 85320AMILFT accept 1.8V LVCMOS inputs?

No, the 85320AMILFT does not guarantee operation with 1.8V LVCMOS inputs. Its CLK input is specified for LVCMOS/LVTTL levels: at 3.3V supply, V_IL ≤ 1.3V and V_IH ≥ 2.0V; at 2.5V supply, V_IL ≤ 0.9V and V_IH ≥ 1.6V. A 1.8V logic high falls below the minimum V_IH threshold in both cases and may result in unreliable switching or increased jitter. Use only 2.5V- or 3.3V-compatible clock sources with the 85320AMILFT.

Is the 85320AMILFT pin-compatible with other devices in the ICS853xx family?

Yes, the 85320AMILFT shares the same 8-pin SOIC (M) package and pinout with ICS85310AMILFT and ICS85301AMILFT, including identical CLK, Q, nQ, V_CC, V_EE, and nc assignments. However, functional differences exist: 85310 lacks internal CLK pull-up, and 85301 provides two independent outputs. Mechanical compatibility enables drop-in replacement only when electrical behavior (e.g., pull-up presence, output count) aligns with system requirements.

85320AMILFT Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:

Packaging:: Tape & Reel (TR)

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)

85320AMILFT FAQ

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

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

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

3.What payment methods are accepted for 85320AMILFT?

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 85320AMILFT?

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

Once your 85320AMILFT 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 85320AMILFT?

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

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

All 85320AMILFT 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 85320AMILFT meets industry standards.

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

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

Return procedure for 85320AMILFT:

1.Submit a request within 90 days.

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

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