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

Renesas 85322AMILF

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

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Part No.:: 85322AMILF

Manufacturer:: Renesas

Category:: Translators, Level Shifters

Package:

Datasheet:: 85322AMILF.pdf

Description:: IC TRANSLTR UNIDIRECTIONAL 8SOIC

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Inventory:1,743

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Product details

Overview

85322AMILF 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 85322AMILF datasheet, 85322AMILF pinout, 85322AMILF application, or 85322AMILF equivalent, key selection criteria include its dual LVPECL output capability, selectable 2.5V/3.3V operation, SOIC-8 package compatibility, and guaranteed AC performance under industrial temperature and supply voltage ranges.

Technical Context

The 85322AMILF implements two independent translation paths, each accepting LVCMOS/LVTTL logic levels on dedicated inputs (CLK0, CLK1) and driving matched differential LVPECL output pairs (Q0/nQ0, Q1/nQ1). Its internal architecture includes input pullup resistors (51 kΩ typical) and rail-referenced output drivers optimized for 50 Ω transmission line termination.

It supports dual supply configurations: 3.3V operation (3.135–3.465 V) with 25 mA supply current and 2.5V operation (2.375–2.625 V), both delivering 0.65–1.0 V peak-to-peak LVPECL swing. Propagation delay is 0.5–1.9 ns (3.3V) or 0.7–2.1 ns (2.5V), with output duty cycle tightly controlled between 40–60%.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	3.3V ±5% (3.135–3.465 V) or 2.5V ±5% (2.375–2.625 V); enables interoperability with mixed-voltage system domains.
Max Output Frequency	267 MHz at 3.3V; supports high-speed SerDes clocking, DDR memory interfaces, and PCIe Gen1 reference clocks.
Part-to-Part Skew	≤250 ps; ensures deterministic timing alignment across multiple devices in parallel clock trees.
LVPECL Output Swing	0.65–1.0 V peak-to-peak; meets JEDEC-compliant LVPECL signal integrity requirements for 50 Ω loads.
Input Logic Compatibility	LVTTL/LVCMOS levels on CLK0 and CLK1; eliminates need for external level-shifting circuitry.
Operating Temperature	–40°C to +85°C ambient; qualified for industrial-grade embedded and networking equipment.
Package Type	Lead-free 8-pin SOIC (M package, 3.90 × 4.92 × 1.37 mm); compatible with standard surface-mount assembly and reflow profiles.

Pinout & Package

85322AMILF is housed in an 8-pin SOIC (M package) with 1.27 mm pitch, 3.90 mm × 4.92 mm body, and 1.37 mm height. Pin assignments are validated per ICS85322I Revision D datasheet.

Pin/Terminal	Circuit Role	Design Meaning
1, 2 Q0, nQ0	Differential LVPECL output pair	Complementary 2.5V/3.3V LVPECL signals; require 50 Ω termination to VCC – 2V for proper DC bias and signal integrity.
3, 4 Q1, nQ1	Differential LVPECL output pair	Independent second channel; electrically isolated from Q0/nQ0 path to minimize crosstalk and skew coupling.
5 VEE	Negative supply	Internally biased at –1.3 V ±0.165 V (3.3V mode) or –0.5 V ±0.125 V (2.5V mode); must be connected to stable ground or negative rail.
6 CLK1	Single-ended clock input	LVTTL/LVCMOS-compatible with internal 51 kΩ pullup; accepts 0–3.465 V (3.3V mode) or 0–2.625 V (2.5V mode) logic levels.
7 CLK0	Single-ended clock input	Functionally identical to CLK1; enables dual independent clock domain translation without external multiplexing.
8 VCC	Positive supply	Primary power rail; supplies core logic and output drivers; decoupling capacitor required near pin for noise suppression.

Key Features

Feature	Design Value
Dual independent LVPECL output channels	Enables simultaneous translation of two clock domains (e.g., CPU and memory clocks) without shared timing path degradation.
Selectably powered 2.5V/3.3V operation	Single device supports both legacy 3.3V and modern low-voltage 2.5V systems-no redesign needed when migrating supply rails.
Internal input pullup resistors (51 kΩ)	Eliminates need for external biasing components on CLK0/CLK1, reducing BOM count and PCB area in space-constrained designs.
Guaranteed ≤250 ps part-to-part skew	Ensures sub-nanosecond synchronization across multiple 85322AMILF units in distributed clock fanout networks.
Industrial temperature range (–40°C to +85°C)	Validated for continuous operation in base station radios, industrial PLCs, and network switches without derating.

Applications

Telecom Baseband Clock Distribution	FPGA High-Speed Interface Timing
Use Scenario: Distributing synchronized clock signals from a central oscillator to multiple RF transceiver ASICs in a 4G/LTE macro base station. IC Role / Device Role / Timing Role: Translates single-ended system clock into two matched LVPECL differential pairs-one for ADC/DAC sampling clocks, one for digital front-end logic. Use Value: Achieves <250 ps inter-device skew across 12+ boards using identical 85322AMILF units, enabling coherent multi-antenna signal processing.	Use Scenario: Providing clean, low-jitter reference clocks to high-speed transceivers (e.g., Xilinx GTY, Intel Stratix 10 H-Tile) on an FPGA carrier board. IC Role / Device Role / Timing Role: Converts FPGA GPIO-driven LVCMOS clocks into LVPECL-compatible signals meeting PCIe Gen3 and SATA III jitter budgets. Use Value: Delivers 0.5–1.9 ns propagation delay with 40–60% duty cycle stability, directly supporting 5+ Gbps serial link initialization and lock.
DDR Memory Controller Clocking	Test Equipment Signal Generation
Use Scenario: Driving differential clock inputs of DDR4 memory modules from a microcontroller's single-ended clock output in an embedded test platform. IC Role / Device Role / Timing Role: Acts as a level-shifting buffer between 3.3V MCU clock and 1.2V DDR4 PHY's LVDS-compatible clock receiver (via LVPECL-to-LVDS translation stage). Use Value: Maintains <1.0 Vpp LVPECL swing and ≤700 ps rise/fall time, preserving edge fidelity required for 2400 MT/s DDR4 timing margins.	Use Scenario: Generating precise, low-skew differential clock stimuli for automated test equipment (ATE) probing high-speed digital ICs. IC Role / Device Role / Timing Role: Serves as a programmable clock translator stage in ATE timing subsystems, accepting TTL-triggered inputs and delivering LVPECL outputs to DUT clock pins. Use Value: Enables repeatable 267 MHz stimulus generation with verified part-to-part skew ≤250 ps-critical for parametric yield analysis of high-speed logic families.

Telecom Baseband Clock Distribution

FPGA High-Speed Interface Timing

Use Scenario: Distributing synchronized clock signals from a central oscillator to multiple RF transceiver ASICs in a 4G/LTE macro base station.

IC Role / Device Role / Timing Role: Translates single-ended system clock into two matched LVPECL differential pairs-one for ADC/DAC sampling clocks, one for digital front-end logic.

Use Value: Achieves <250 ps inter-device skew across 12+ boards using identical 85322AMILF units, enabling coherent multi-antenna signal processing.

Use Scenario: Providing clean, low-jitter reference clocks to high-speed transceivers (e.g., Xilinx GTY, Intel Stratix 10 H-Tile) on an FPGA carrier board.

IC Role / Device Role / Timing Role: Converts FPGA GPIO-driven LVCMOS clocks into LVPECL-compatible signals meeting PCIe Gen3 and SATA III jitter budgets.

Use Value: Delivers 0.5–1.9 ns propagation delay with 40–60% duty cycle stability, directly supporting 5+ Gbps serial link initialization and lock.

DDR Memory Controller Clocking

Test Equipment Signal Generation

Use Scenario: Driving differential clock inputs of DDR4 memory modules from a microcontroller's single-ended clock output in an embedded test platform.

IC Role / Device Role / Timing Role: Acts as a level-shifting buffer between 3.3V MCU clock and 1.2V DDR4 PHY's LVDS-compatible clock receiver (via LVPECL-to-LVDS translation stage).

Use Value: Maintains <1.0 Vpp LVPECL swing and ≤700 ps rise/fall time, preserving edge fidelity required for 2400 MT/s DDR4 timing margins.

Use Scenario: Generating precise, low-skew differential clock stimuli for automated test equipment (ATE) probing high-speed digital ICs.

IC Role / Device Role / Timing Role: Serves as a programmable clock translator stage in ATE timing subsystems, accepting TTL-triggered inputs and delivering LVPECL outputs to DUT clock pins.

Use Value: Enables repeatable 267 MHz stimulus generation with verified part-to-part skew ≤250 ps-critical for parametric yield analysis of high-speed logic families.

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
MC100LVEL16DR2G	Single-channel, 3.3V-only LVPECL translator; no 2.5V support; higher supply current (35 mA vs. 25 mA).	Requires two units to match dual-channel functionality of 85322AMILF; less suitable for space-constrained layouts.	Prefer when only one clock domain needs translation and legacy 3.3V-only design simplifies qualification.
SN65LVDS31DR	LVDS output (not LVPECL); 3.3V supply only; no internal pullups; requires external biasing on inputs.	Not drop-in compatible-requires redesign of termination network and input conditioning circuitry.	Choose only if system already uses LVDS signaling and board layout allows adding pullup resistors and 100 Ω differential termination.

Compared with MC100LVEL16DR2G and SN65LVDS31DR, the 85322AMILF uniquely integrates dual-channel LVPECL translation with 2.5V/3.3V flexibility, internal pullups, and guaranteed skew-reducing component count, layout complexity, and qualification effort in multi-clock industrial systems.

Availability

85322AMILF is available at Aetrix Electronics and suitable for telecom infrastructure, FPGA-based prototyping, DDR memory subsystems, and automated test equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for 85322AMILF 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, with deep heritage in high-performance clocking technology via its acquisition of IDT.

The 85322AMILF belongs to Renesas' precision timing portfolio, designed specifically for high-speed digital systems requiring reliable, low-skew clock translation between CMOS/TTL and differential PECL domains.

FAQ

What supply voltages does the 85322AMILF support?

The 85322AMILF supports two operating supply voltages: 3.3V (3.135–3.465 V) and 2.5V (2.375–2.625 V), each with fully characterized LVPECL output performance, input thresholds, and timing parameters per the official datasheet. Both configurations maintain ≤250 ps part-to-part skew and 40–60% output duty cycle. The 85322AMILF does not support 1.8V or 5V operation.

Does the 85322AMILF require external pullup resistors on CLK0 and CLK1 inputs?

No-the 85322AMILF includes internal 51 kΩ pullup resistors on both CLK0 and CLK1 inputs, as confirmed in Table 2 (Pin Characteristics) of the ICS85322I Revision D datasheet. This eliminates the need for external biasing components in standard LVTTL/LVCMOS drive scenarios, simplifying schematic design and reducing bill-of-materials cost.

What is the maximum guaranteed output frequency for the 85322AMILF?

The 85322AMILF guarantees up to 267 MHz output frequency when operated at 3.3V supply (VCC = 3.135–3.465 V), as specified in Table 4A (AC Electrical Characteristics). At 2.5V supply, the maximum guaranteed frequency is 215 MHz (Table 4B). These values are tested and guaranteed over the full –40°C to +85°C temperature range.

How is LVPECL output termination implemented for the 85322AMILF?

The 85322AMILF LVPECL outputs require termination to VCC – 2V using either discrete resistors (e.g., 84 Ω to VCC and 125 Ω to ground for 3.3V mode) or active current sources, as detailed in Figures 1A–1B and 2A–2C of the datasheet. For 2.5V operation, VCC – 2V ≈ 0.5 V, so termination effectively references near-ground-enabling simplified 50 Ω to ground schemes shown in Figure 2C.

Is the 85322AMILF pin-compatible with other IDT clock translators like the 85312 series?

No-the 85322AMILF has a unique 8-pin SOIC pinout (Q0, nQ0, Q1, nQ1, VEE, CLK1, CLK0, VCC) that differs from the 85312 family, which uses different pin assignments and offers single-channel operation. There is no documented pin-compatible replacement for the 85322AMILF; migration requires PCB layout revision and signal routing updates.

85322AMILF 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:: 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)

85322AMILF FAQ

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

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

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

3.What payment methods are accepted for 85322AMILF?

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 85322AMILF?

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

Once your 85322AMILF 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 85322AMILF?

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

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

All 85322AMILF 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 85322AMILF meets industry standards.

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

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

Return procedure for 85322AMILF:

1.Submit a request within 90 days.

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

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