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

Renesas 85322AMILFT

Name: 85322AMILFT
Brand: Renesas
SKU: 85322AMILFT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 85322AMILFT

Manufacturer:: Renesas

Category:: Translators, Level Shifters

Package:

Datasheet:: 85322AMILFT.pdf

Description:: IC TRANSLTR UNIDIRECTIONAL 8SOIC

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Product details

Overview

85322AMILFT from Renesas Electronics (formerly IDT) is a dual-channel LVCMOS/LVTTL-to-LVPECL translator IC that converts single-ended clock inputs into differential 2.5V or 3.3V LVPECL outputs. It supports two independent input channels (CLK0, CLK1), delivers ≤267 MHz output frequency at 3.3V supply, maintains ≤250 ps part-to-part skew, and operates across –40°C to +85°C for telecom clock distribution and FPGA interface timing.

For engineers reviewing the 85322AMILFT datasheet, 85322AMILFT pinout, 85322AMILFT application, or 85322AMILFT equivalent, key selection criteria include dual LVPECL output compatibility with 50 Ω transmission lines, selectable 2.5V/3.3V operation, internal pullup-enabled LVCMOS/LVTTL inputs, and SOIC-8 footprint suitability for space-constrained high-speed clock routing.

Technical Context

The 85322AMILFT implements two independent translation paths: each accepts LVCMOS or LVTTL logic levels on dedicated inputs (CLK0/CLK1) and drives matched differential LVPECL output pairs (Q0/nQ0, Q1/nQ1). Its architecture uses current-mode logic (CML)-derived output stages with internal termination reference to VEE (–1.3 V) and VCC (2.5 V or 3.3 V).

It requires external DC-coupled 50 Ω terminations to VCC – 2 V for proper LVPECL signal integrity - e.g., 84 Ω + 125 Ω networks for 3.3V mode or 50 Ω resistors to ground for 2.5V mode. Propagation delay is 0.5–1.9 ns (3.3V) or 0.7–2.1 ns (2.5V), with output duty cycle maintained between 40% and 60% across full frequency range.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.375–2.625 V or 3.135–3.465 V - supports dual-rail system integration without level-shifting circuitry.
Max Output Frequency	267 MHz at 3.3 V - enables PCIe Gen1/Gen2 reference clock distribution and DDR2/DDR3 memory controller timing.
Part-to-Part Skew	≤250 ps - ensures deterministic phase alignment across multiple 85322AMILFT devices in parallel clock fanout systems.
Input Compatibility	LVTTL/LVCMOS logic levels with internal 51 kΩ pullup - eliminates need for external bias resistors on clock inputs.
Output Interface	Differential LVPECL (Q0/nQ0, Q1/nQ1) - provides ECL-compatible swing (0.65–1.0 Vpp) and fast edge rates (300–700 ps rise/fall).
Ambient Temp Range	–40°C to +85°C - qualified for industrial-grade embedded and networking equipment deployment.
Package	8-pin SOIC (M package, 3.90 × 4.92 × 1.37 mm) - surface-mount compatible with standard reflow profiles and automated assembly.

Pinout & Package

85322AMILFT is housed in an 8-pin SOIC (M package) with 1.27 mm pitch, JEDEC MO-012 compliant, body dimensions 3.90 mm × 4.92 mm × 1.37 mm. Pin 1 is Q0 (top-left corner when notch faces up); pin numbering follows standard SOIC convention.

Pin/Terminal	Circuit Role	Design Meaning
1	Q0	LVPECL positive output of Channel 0 - must be terminated differentially to nQ0 with 50 Ω load referenced to VCC – 2 V.
2	nQ0	LVPECL negative output of Channel 0 - forms complementary pair with Q0 for noise-immune clock transmission.
3	Q1	LVPECL positive output of Channel 1 - electrically isolated from Q0/nQ0 path; supports independent clock domain translation.
4	nQ1	LVPECL negative output of Channel 1 - enables dual-clock fanout without cross-talk or shared supply impedance coupling.
5	VEE	Negative supply terminal (–1.3 V ± 0.165 V) - requires low-noise local decoupling; not connected to system ground.
6	CLK1	LVTTL/LVCMOS clock input with 51 kΩ internal pullup - accepts 0–3.465 V logic; no external bias needed.
7	CLK0	LVTTL/LVCMOS clock input with 51 kΩ internal pullup - identical electrical behavior to CLK1; supports asynchronous dual-input operation.
8	VCC	Positive supply (2.5 V or 3.3 V) - powers both translation channels; requires ≥10 µF bulk + 0.1 µF ceramic decoupling per supply pin.

Key Features

Feature	Design Value
Dual independent LVPECL translators	Enables simultaneous translation of two separate clock domains - e.g., CPU core clock and I/O subsystem clock - within one SOIC-8 footprint.
Internal input pullup resistors	51 kΩ on CLK0/CLK1 eliminates external bias components and reduces BOM count in LVTTL-driven systems.
2.5 V / 3.3 V supply flexibility	Single device supports mixed-voltage board designs - avoids need for separate 2.5 V and 3.3 V translator families.
Low propagation delay variation	0.5–1.9 ns (3.3 V) or 0.7–2.1 ns (2.5 V) with <100 ps channel-to-channel skew - preserves timing margins in high-speed synchronous interfaces.
Lead-free RoHS 6 compliance	Meets IPC/JEDEC J-STD-020D reflow profile requirements - supports lead-free manufacturing without derating or thermal compromise.

Applications

Telecom Line Card Timing	FPGA Clock Fanout
Use Scenario: Distributing a single 156.25 MHz reference clock to multiple SerDes lanes on a 10Gbps line card. IC Role / Device Role / Timing Role: Dual LVPECL translator providing two matched, low-skew differential clock outputs to separate FPGA banks. Use Value: Eliminates need for discrete clock buffers or ECL-level translators; 250 ps part-to-part skew ensures deterministic inter-lane alignment for SONET/OTN framing.	Use Scenario: Driving LVPECL-capable transceivers (e.g., Xilinx GTY, Intel Stratix 10 H-Tile) from a 3.3 V LVCMOS oscillator. IC Role / Device Role / Timing Role: Level-shifting interface between FPGA's single-ended clock input and differential high-speed transceiver clocks. Use Value: Enables direct connection without external AC-coupling or termination redesign; 267 MHz max frequency covers PCIe Gen3 (100 MHz ref) and Ethernet (156.25 MHz) use cases.
Industrial PLC Backplane Sync	Test Equipment Clock Generation
Use Scenario: Synchronizing distributed I/O modules across a CANopen or EtherCAT backplane using a centralized 25 MHz timing bus. IC Role / Device Role / Timing Role: Translating microcontroller-generated LVCMOS clock into robust differential LVPECL for noise-immune long-trace routing. Use Value: Differential signaling rejects common-mode noise on 10+ cm PCB traces; –40°C to +85°C rating ensures reliability in uncontrolled cabinet environments.	Use Scenario: Generating precise dual-phase clocks for high-resolution ADC/DAC sampling in automated test equipment. IC Role / Device Role / Timing Role: Providing two phase-aligned LVPECL outputs with minimal jitter addition for synchronized analog front-end control. Use Value: Sub-250 ps skew between outputs allows tight interleaving of sample clocks; 0.65–1.0 Vpp swing meets LVPECL receiver sensitivity thresholds without amplification.

Telecom Line Card Timing

FPGA Clock Fanout

Use Scenario: Distributing a single 156.25 MHz reference clock to multiple SerDes lanes on a 10Gbps line card.

IC Role / Device Role / Timing Role: Dual LVPECL translator providing two matched, low-skew differential clock outputs to separate FPGA banks.

Use Value: Eliminates need for discrete clock buffers or ECL-level translators; 250 ps part-to-part skew ensures deterministic inter-lane alignment for SONET/OTN framing.

Use Scenario: Driving LVPECL-capable transceivers (e.g., Xilinx GTY, Intel Stratix 10 H-Tile) from a 3.3 V LVCMOS oscillator.

IC Role / Device Role / Timing Role: Level-shifting interface between FPGA's single-ended clock input and differential high-speed transceiver clocks.

Use Value: Enables direct connection without external AC-coupling or termination redesign; 267 MHz max frequency covers PCIe Gen3 (100 MHz ref) and Ethernet (156.25 MHz) use cases.

Industrial PLC Backplane Sync

Test Equipment Clock Generation

Use Scenario: Synchronizing distributed I/O modules across a CANopen or EtherCAT backplane using a centralized 25 MHz timing bus.

IC Role / Device Role / Timing Role: Translating microcontroller-generated LVCMOS clock into robust differential LVPECL for noise-immune long-trace routing.

Use Value: Differential signaling rejects common-mode noise on 10+ cm PCB traces; –40°C to +85°C rating ensures reliability in uncontrolled cabinet environments.

Use Scenario: Generating precise dual-phase clocks for high-resolution ADC/DAC sampling in automated test equipment.

IC Role / Device Role / Timing Role: Providing two phase-aligned LVPECL outputs with minimal jitter addition for synchronized analog front-end control.

Use Value: Sub-250 ps skew between outputs allows tight interleaving of sample clocks; 0.65–1.0 Vpp swing meets LVPECL receiver sensitivity thresholds without amplification.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
85322AGILFT	Same silicon die, TSSOP-8 package (3.0 × 3.0 mm) - smaller footprint but higher thermal resistance (157°C/W vs. 103°C/W for SOIC).	Better suited for ultra-dense layouts where board area is constrained; less optimal for high-power continuous operation without airflow.	Select 85322AGILFT only when PCB real estate is critical and thermal management (e.g., forced air) can compensate for higher junction temperature rise.
ICS85312AMLF	Single-channel variant (one CLK input → one Q/nQ pair); otherwise identical electrical specs and pinout subset (pins 1–5, 8).	Applicable when only one translated LVPECL output is required - reduces cost and layout complexity versus dual-channel solution.	Choose ICS85312AMLF for cost-sensitive single-clock applications; avoid if future expansion to dual-clock routing is anticipated.

Compared with 85322AMILFT, the 85322AGILFT offers space savings at the expense of thermal performance, while the ICS85312AMLF trades channel count for lower unit cost - neither is pin-compatible, requiring PCB redesign, but both share identical timing and voltage specifications.

Availability

85322AMILFT is available at Aetrix Electronics and suitable for telecom infrastructure, FPGA-based prototyping, industrial automation, and test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for 85322AMILFT 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions, formed through the merger of IDT and Renesas in 2019.

The 85322AMILFT belongs to Renesas' high-performance clock translation portfolio, designed specifically for bridging legacy LVCMOS/LVTTL clock sources to modern differential signaling standards in networking, computing, and industrial systems.

FAQ

What supply voltages does the 85322AMILFT support?

The 85322AMILFT supports two operating supply ranges: 2.375 V to 2.625 V (2.5 V nominal) and 3.135 V to 3.465 V (3.3 V nominal). Both ranges are fully characterized across –40°C to +85°C ambient temperature, with corresponding LVPECL output swing and timing parameters specified separately in the datasheet. The device does not support 1.8 V or 5 V operation.

Does the 85322AMILFT require external termination resistors?

Yes, the 85322AMILFT requires external DC-coupled 50 Ω terminations to VCC – 2 V for proper LVPECL output functionality. For 3.3 V operation, typical configurations use 84 Ω + 125 Ω resistor networks; for 2.5 V operation, 50 Ω resistors to ground are recommended. Without correct termination, output voltage levels and signal integrity will not meet LVPECL specifications.

Can CLK0 and CLK1 accept different input frequencies simultaneously?

Yes, CLK0 and CLK1 are electrically isolated inputs and may operate at different frequencies - e.g., 100 MHz on CLK0 and 125 MHz on CLK1 - with independent translation to their respective Q0/nQ0 and Q1/nQ1 output pairs. No synchronization or phase relationship is enforced between the two channels.

What is the function of the VEE pin on the 85322AMILFT?

The VEE pin is the negative supply terminal for the LVPECL output stage and must be connected to –1.3 V ± 0.165 V (not ground). This rail establishes the correct common-mode voltage for LVPECL differential outputs. Incorrect VEE voltage or grounding VEE will cause output failure or excessive current draw. A dedicated low-noise negative regulator or charge pump is required.

Is the 85322AMILFT pin-compatible with other IDT clock translators?

No, the 85322AMILFT has a unique 8-pin SOIC pinout optimized for dual-channel LVPECL translation and is not pin-compatible with single-channel variants (e.g., ICS85312) or other families such as the 854-series. Pin mapping differs in both signal assignment and power pin locations - PCB layout must be designed specifically for the 85322AMILFT.

85322AMILFT 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:: 2

Voltage - VCCA:: -

Voltage - VCCB:: -

Input Signal:: LVCMOS, LVTTL

Output Signal:: LVPECL

Output Type:: Differential

Data Rate:: -

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Features:: -

Mounting Type:: Surface Mount

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

85322AMILFT FAQ

1.How can I place an order for 85322AMILFT through Aetrix?

Please submit a Request for Quotation (RFQ) for 85322AMILFT 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 85322AMILFT reliable?

The price and inventory of 85322AMILFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 85322AMILFT is usually 5 days.

3.What payment methods are accepted for 85322AMILFT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 85322AMILFT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 85322AMILFT?

85322AMILFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 85322AMILFT 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 85322AMILFT?

For technical support, including 85322AMILFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 85322AMILFT requirements.

6.How does Aetrix verify that 85322AMILFT is sourced from the original manufacturer or authorized distributors?

All 85322AMILFT 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 85322AMILFT meets industry standards.

7.What is the process for return or replacement of 85322AMILFT?

All 85322AMILFT units undergo pre-shipment inspection (PSI). If there is an issue with 85322AMILFT, 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 85322AMILFT part is unused and in its original packaging.

Return procedure for 85322AMILFT:

1.Submit a request within 90 days.

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

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