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

Renesas 85222AMLF

Name: 85222AMLF
Brand: Renesas
SKU: 85222AMLF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 85222AMLF

Manufacturer:: Renesas

Category:: Translators, Level Shifters

Package:

Datasheet:: 85222AMLF.pdf

Description:: IC TRANSLTR UNIDIRECTIONAL 8SOIC

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Inventory:4,092

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Product details

Overview

85222AMLF from Renesas Electronics (formerly IDT) is a dual-channel LVCMOS/LVTTL-to-differential LVHSTL translator IC used for clock signal level conversion in high-speed timing interfaces. It accepts two single-ended LVCMOS or LVTTL clock inputs (CLK0, CLK1), delivers two differential LVHSTL output pairs (Q0/nQ0, Q1/nQ1), supports 350MHz maximum output frequency, operates from 2.5V or 3.3V supply, and features ≤1.3ns max propagation delay and ≤350ps part-to-part skew. It is deployed in FPGA-to-memory interconnects requiring precise low-skew differential signaling.

For engineers reviewing the 8522AMLF datasheet, 85222AMLF pinout, 85222AMLF application, or 85222AMLF equivalent, key selection criteria include LVHSTL output compliance, dual independent channel operation, 2.5V/3.3V dual-supply support, SOIC-8 package footprint constraints, and termination requirements for unused differential outputs.

Technical Context

The 85222AMLF implements two independent translation paths: each input (CLK0 or CLK1) drives a dedicated LVHSTL differential driver pair with internal pulldown resistors (51kΩ) and compatible LVCMOS/LVTTL input thresholds (VIH ≥2V, VIL ≤1.3V). Output drivers are designed for 50Ω-terminated loads to GND, delivering VOH ≤1.2V and VOL ≤0.55V depending on supply voltage.

AC performance is specified across both 2.5V and 3.3V supplies, with propagation delay ranging from 750–1300ps and part-to-part skew tightened to 350ps (at 3.3V) or 450ps (at 2.5V). Duty cycle accuracy is maintained across frequency bands up to 350MHz, with tighter tolerance (±2%) below 150MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.5V ±5% or 3.3V ±5% - supports dual-voltage system integration without level-shifting circuitry
Max Output Frequency	350MHz - enables use in DDR2/DDR3 memory clock trees and high-speed serial interface reference clocks
Propagation Delay	750–1300ps - ensures tight timing budget control in synchronous systems with sub-nanosecond margins
Part-to-Part Skew	350ps (max at 3.3V) - critical for multi-device synchronization in parallel bus or multi-FPGA architectures
LVHSTL Output Swing	0.45–1.2V peak-to-peak - meets JEDEC-compliant LVHSTL receiver input window requirements
Input Threshold Compatibility	VIH ≥2V, VIL ≤1.3V - interoperable with standard 2.5V/3.3V CMOS and TTL logic families
Thermal Resistance θJA	103.3°C/W (200 LFPM, multilayer PCB) - enables thermal-aware layout for sustained 45mA IDD operation

Pinout & Package

85222AMLF is housed in an 8-pin SOIC package (M suffix), measuring 3.90mm × 4.92mm × 1.37mm, with lead-free RoHS-compliant construction per JEDEC MS-012 outline.

Pin/Terminal	Circuit Role	Design Meaning
1, 2 Q0, nQ0	Differential LVHSTL Output Pair	Complementary outputs requiring 50Ω termination to GND; unused pair must still be terminated to prevent reflections
3, 4 Q1, nQ1	Differential LVHSTL Output Pair	Independent second channel; electrically isolated from Q0/nQ0 path; same termination requirement
5 GND	Power Ground	Reference return for all I/O and core logic; requires low-inductance connection to PCB ground plane
6 CLK1	Single-Ended Clock Input	LVTTL/LVCMOS-compatible input with internal 51kΩ pulldown resistor; accepts 0–3.465V swing
7 CLK0	Single-Ended Clock Input	Identical electrical characteristics to CLK1; enables dual independent clock domain translation
8 VDD	Positive Supply Pin	Accepts 2.5V or 3.3V supply; requires local 0.1µF decoupling capacitor placed adjacent to pin

Key Features

Feature	Design Value
Dual independent translation channels	Enables simultaneous translation of two asynchronous clock domains without crosstalk or shared timing path
LVCMOS/LVTTL input compatibility	Eliminates need for external input conditioning circuitry when interfacing with microcontrollers, FPGAs, or ASICs
LVHSTL differential output compliance	Meets JEDEC-standard LVHSTL receiver interface requirements for memory subsystems and high-speed buses
Low propagation delay variation	750–1150ps typical delay range at 3.3V ensures predictable timing closure in high-frequency designs
Internal input pullup/pulldown resistors	51kΩ internal resistors simplify board design by removing need for discrete biasing components on CLK0/CLK1

Applications

Memory Interface Clocking	FPGA I/O Timing Reference
Use Scenario: Driving DDR2/DDR3 memory controller clock inputs requiring LVHSTL-level differential signals. IC Role / Device Role / Timing Role: Translates single-ended system clock into matched LVHSTL differential pairs for memory PHY clock distribution. Use Value: Ensures <350ps skew between Q0/nQ0 and Q1/nQ1 outputs, meeting JEDEC tSKO skew budget for parallel memory buses.	Use Scenario: Providing synchronized differential clock references to multiple FPGA banks operating at different voltage domains. IC Role / Device Role / Timing Role: Dual-channel translator supplying isolated LVHSTL clocks to separate FPGA I/O banks with independent enable control. Use Value: Supports 350MHz operation with ≤1.3ns max propagation delay, enabling reliable setup/hold timing for high-speed transceivers.
High-Speed Serial Link Reference	Test Equipment Clock Distribution
Use Scenario: Generating clean, low-jitter differential reference clocks for SerDes PLLs in communication SoCs. IC Role / Device Role / Timing Role: Converts low-jitter LVCMOS oscillator output into LVHSTL-compliant differential clock for PLL reference input. Use Value: Delivers 0.45–1.2V p-p swing with <800ps rise/fall times, minimizing jitter accumulation in PLL feedback paths.	Use Scenario: Distributing calibrated clock signals across multiple instrument channels in automated test equipment (ATE). IC Role / Device Role / Timing Role: Provides traceable, low-skew dual-output clock translation for synchronized sampling across test channels. Use Value: Achieves 350ps part-to-part skew across units, enabling channel-to-channel phase alignment within ±200ps tolerance.

Memory Interface Clocking

FPGA I/O Timing Reference

Use Scenario: Driving DDR2/DDR3 memory controller clock inputs requiring LVHSTL-level differential signals.

IC Role / Device Role / Timing Role: Translates single-ended system clock into matched LVHSTL differential pairs for memory PHY clock distribution.

Use Value: Ensures <350ps skew between Q0/nQ0 and Q1/nQ1 outputs, meeting JEDEC tSKO skew budget for parallel memory buses.

Use Scenario: Providing synchronized differential clock references to multiple FPGA banks operating at different voltage domains.

IC Role / Device Role / Timing Role: Dual-channel translator supplying isolated LVHSTL clocks to separate FPGA I/O banks with independent enable control.

Use Value: Supports 350MHz operation with ≤1.3ns max propagation delay, enabling reliable setup/hold timing for high-speed transceivers.

High-Speed Serial Link Reference

Test Equipment Clock Distribution

Use Scenario: Generating clean, low-jitter differential reference clocks for SerDes PLLs in communication SoCs.

IC Role / Device Role / Timing Role: Converts low-jitter LVCMOS oscillator output into LVHSTL-compliant differential clock for PLL reference input.

Use Value: Delivers 0.45–1.2V p-p swing with <800ps rise/fall times, minimizing jitter accumulation in PLL feedback paths.

Use Scenario: Distributing calibrated clock signals across multiple instrument channels in automated test equipment (ATE).

IC Role / Device Role / Timing Role: Provides traceable, low-skew dual-output clock translation for synchronized sampling across test channels.

Use Value: Achieves 350ps part-to-part skew across units, enabling channel-to-channel phase alignment within ±200ps tolerance.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IDT 85212AMLF	Single-channel LVCMOS/LVTTL-to-LVHSTL translator; identical SOIC-8 package and 350MHz rating	Suitable only for single-clock-domain systems; lacks dual-channel independence of 85222AMLF	Select when only one LVHSTL output pair is required and board space or BOM count optimization is prioritized
Renesas 8T49N241	Programmable clock generator with integrated LVHSTL outputs; supports fractional synthesis and multiple output formats	Replaces discrete translators with full clock tree management; requires configuration via I²C	Choose when flexible frequency generation, spread-spectrum control, or multi-format output (LVDS/LVPECL/LVHSTL) is needed beyond simple level translation

Compared with IDT 85212AMLF and Renesas 8T49N241, the 85222AMLF uniquely provides two independent, uncorrelated LVHSTL translation channels in a minimal SOIC-8 footprint-ideal for space-constrained dual-clock applications where programmability or single-channel operation are insufficient.

Availability

85222AMLF is available at Aetrix Electronics and suitable for memory interface clocking, FPGA timing reference, and high-speed serial link applications requiring stable component supply, consistent parametric performance, and long-term industrial temperature availability.

Supply support for 85222AMLF 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 formed from the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and timing solutions for automotive, industrial, and infrastructure markets.

The 85222AMLF belongs to Renesas' high-performance clock translation product line, engineered specifically for low-skew, high-frequency signal integrity in memory subsystems and FPGA-based computing platforms.

FAQ

What is the operating temperature range for the 85222AMLF?

The 85222AMLF is rated for 0°C to +70°C ambient operating temperature. Industrial-grade variants with extended temperature range (–40°C to +85°C) were available upon request per the original IDT datasheet revision C, though the 85222AMLF marking specifically denotes the commercial-grade version shipped in tube packaging.

Does the 85222AMLF require external termination resistors?

Yes - the 85222AMLF requires 50Ω termination to GND on each differential output pair (Q0/nQ0 and Q1/nQ1) to meet LVHSTL specifications and ensure signal integrity. Even if one output pair is unused, it must be terminated to prevent reflections and EMI; the datasheet explicitly mandates this in the Application Information section.

Can the 85222AMLF operate from both 2.5V and 3.3V supplies simultaneously?

No - the 85222AMLF has a single VDD pin and operates from either 2.5V ±5% or 3.3V ±5%, not both simultaneously. The device's internal circuitry is designed for one supply voltage at a time; mixing voltages would violate absolute maximum ratings and risk damage.

What is the meaning of "M" in the 85222AMLF part number?

The "M" suffix in 85222AMLF denotes the 8-pin SOIC package per JEDEC MS-012 outline, with dimensions 3.90mm × 4.92mm × 1.37mm. This matches the "M Package" designation in the official 85222 datasheet pin assignment diagram and ordering information table.

Is the 85222AMLF pin-compatible with other IDT 852xx-series translators?

The 85222AMLF shares the same 8-pin SOIC (M) package and pinout with IDT 85212AMLF (single-channel variant), but is not pin-compatible with higher-channel-count devices like 85242 or 85262, which use different pin assignments and package types. Always verify pin mapping against the specific device's datasheet before substitution.

85222AMLF 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:: LVHSTL

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)

85222AMLF FAQ

1.How can I place an order for 85222AMLF through Aetrix?

Please submit a Request for Quotation (RFQ) for 85222AMLF 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 85222AMLF reliable?

The price and inventory of 85222AMLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 85222AMLF is usually 5 days.

3.What payment methods are accepted for 85222AMLF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 85222AMLF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 85222AMLF?

85222AMLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 85222AMLF 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 85222AMLF?

For technical support, including 85222AMLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 85222AMLF requirements.

6.How does Aetrix verify that 85222AMLF is sourced from the original manufacturer or authorized distributors?

All 85222AMLF 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 85222AMLF meets industry standards.

7.What is the process for return or replacement of 85222AMLF?

All 85222AMLF units undergo pre-shipment inspection (PSI). If there is an issue with 85222AMLF, 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 85222AMLF part is unused and in its original packaging.

Return procedure for 85222AMLF:

1.Submit a request within 90 days.

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

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