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

Renesas 830S21AMI-01LFT

Name: 830S21AMI-01LFT
Brand: Renesas
SKU: 830S21AMI-01LFT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 830S21AMI-01LFT

Manufacturer:: Renesas

Category:: Translators, Level Shifters

Package:

Datasheet:: 830S21AMI-01LFT.pdf

Description:: IC TRANSLTR UNIDIRECTIONAL 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:1,112

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Product details

Overview

830S21AMI-01LFT from Renesas Electronics (formerly IDT) is a 1-to-1 differential-to-LVCMOS/LVTTL clock translator with differential CLK/nCLK inputs supporting LVPECL, LVDS, LVHSTL, SSTL, and HCSL signal types, a single LVCMOS/LVTTL output (Q), 350MHz max frequency, 525ps part-to-part skew, and operation across 2.5V or 3.3V supply at –40°C to +85°C ambient - used in high-speed timing interfaces for FPGA, ASIC, and processor clock distribution.

For engineers reviewing the 830S21AMI-01LFT datasheet, 830S21AMI-01LFT pinout, 830S21AMI-01LFT application, or 830S21AMI-01LFT equivalent, key selection criteria include differential input compatibility across five logic families, additive phase jitter of 0.11ps RMS at 350MHz, OE-controlled output enable/disable timing (8ns), SOIC-8 package footprint (3.9mm × 4.9mm), and dual-supply support without level-shifting circuitry.

Technical Context

The 830S21AMI-01LFT implements a single-ended buffer stage following a fully differential input comparator with internal 51kΩ pullup/pulldown resistors on CLK/nCLK. It accepts common-mode voltages from GND+0.5V to VDD–0.85V and supports peak-to-peak differential swings from 0.15V to 1.5V.

Its output driver delivers LVCMOS/LVTTL levels with 10Ω (3.3V) or 12Ω (2.5V) output impedance, 85–500ps rise/fall times, and 47–53% duty cycle stability up to 266MHz - all while maintaining sub-2ns propagation delay and guaranteed 8ns enable/disable response under load.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Output Frequency	350MHz - supports PCIe Gen1/2 reference clocks and DDR2/3 memory controller timing.
Additive Phase Jitter (RMS)	0.11ps (12kHz–20MHz integration) - enables low-BER serial link timing in high-speed SerDes applications.
Part-to-Part Skew	525ps maximum - ensures deterministic timing alignment across multiple devices in parallel clock trees.
Supply Voltage Range	2.375V–2.625V or 3.135V–3.465V - allows direct interface with 2.5V or 3.3V core logic without external regulators.
Output Enable/Disable Time	8ns - enables precise power-gating control of downstream clock domains during low-power states.
Differential Input Compatibility	LVPECL, LVDS, LVHSTL, SSTL, HCSL - eliminates need for discrete termination or level-shifting networks.
Package	8-lead SOIC (M suffix), 3.9mm × 4.9mm × 1.375mm - compatible with standard automated assembly and legacy PCB footprints.

Pinout & Package

830S21AMI-01LFT is housed in an RoHS-compliant, lead-free 8-lead SOIC package (M suffix) with 1.27mm pitch, JEDEC MS-012AC outline, and thermal resistance θ_JA = 93.1°C/W (0 mps airflow).

Pin/Terminal	Circuit Role	Design Meaning
1, 6	nc	No-connect - must remain unconnected per design; no internal function or parasitic coupling.
2	CLK	Non-inverting differential clock input with internal 51kΩ pullup/pulldown - accepts LVPECL/LVDS/LVHSTL/SSTL/HCSL signals.
3	nCLK	Inverting differential clock input with internal 51kΩ pullup/pulldown - forms matched pair with CLK for noise rejection.
4	OE	Active-high output enable with internal 51kΩ pullup - drives Q into high-Z when low; default-enabled at power-up.
5	GND	Power supply ground reference - requires low-inductance connection to system ground plane.
7	Q	LVCMOS/LVTTL single-ended clock output - drives 50Ω loads to VDD/2 with 85–500ps edge rates.
8	VDD	Positive supply pin - supplies both input receiver and output driver; bypassing with 0.1µF ceramic required.

Key Features

Feature	Design Value
Dual-supply operation (2.5V/3.3V)	Eliminates need for external voltage translators when interfacing mixed-voltage clock sources and sinks.
Multi-standard differential input acceptance	Reduces BOM count by replacing dedicated translators for LVPECL, LVDS, and SSTL in multi-source systems.
Low additive phase jitter (0.11ps RMS)	Preserves timing margin in jitter-sensitive applications like JESD204B, CPRI, and high-speed ADC/DAC sampling clocks.
Integrated input bias resistors	Removes four external resistors per channel in single-ended-to-differential adaptation circuits (e.g., Figure 1).
Fast OE-controlled output gating (8ns)	Enables cycle-accurate clock gating for dynamic power management in SoC and FPGA-based subsystems.

Applications

FPGA Clock Distribution	DDR Memory Controller Interface
Use Scenario: Distributing a single differential reference clock from a system-level oscillator to multiple FPGA banks with different I/O voltage requirements. IC Role / Device Role / Timing Role: Translates LVDS or LVPECL system clock to 2.5V or 3.3V LVCMOS for FPGA configuration and I/O bank clocking. Use Value: Maintains <0.11ps jitter and <525ps skew across FPGA clock domains, ensuring setup/hold compliance for high-speed transceivers and memory interfaces.	Use Scenario: Driving address/command clocks to DDR2/DDR3 memory controllers where the source is differential but the controller expects single-ended LVCMOS. IC Role / Device Role / Timing Role: Converts HCSL or SSTL differential clock from CPU/memory controller PHY to clean LVCMOS clock for DDR SDRAM timing inputs. Use Value: Enables direct interface without external RC networks, preserving 350MHz bandwidth and 47–53% duty cycle required for DDR timing margins.
PCIe Reference Clock Buffering	Industrial PLC Timing Module
Use Scenario: Replicating and distributing PCIe Gen1/Gen2 100MHz reference clock across multiple slots or add-in cards in embedded servers. IC Role / Device Role / Timing Role: Buffers and fans out LVDS PCIe REFCLK to multiple endpoints while maintaining PCIe jitter compliance (1.5ps RMS mask). Use Value: Delivers 0.11ps additive jitter - well below PCIe Gen2 limit - enabling reliable multi-lane link training and stable link widths.	Use Scenario: Providing isolated, low-jitter clock signals to real-time microcontrollers and analog front-ends in programmable logic controllers operating in noisy factory environments. IC Role / Device Role / Timing Role: Accepts robust LVDS or LVPECL industrial backplane clock and delivers clean 3.3V LVCMOS timing to MCU peripherals and ADCs. Use Value: Differential input rejection and –40°C to +85°C operation ensure timing integrity despite EMI and temperature cycling in industrial enclosures.

FPGA Clock Distribution

DDR Memory Controller Interface

Use Scenario: Distributing a single differential reference clock from a system-level oscillator to multiple FPGA banks with different I/O voltage requirements.

IC Role / Device Role / Timing Role: Translates LVDS or LVPECL system clock to 2.5V or 3.3V LVCMOS for FPGA configuration and I/O bank clocking.

Use Value: Maintains <0.11ps jitter and <525ps skew across FPGA clock domains, ensuring setup/hold compliance for high-speed transceivers and memory interfaces.

Use Scenario: Driving address/command clocks to DDR2/DDR3 memory controllers where the source is differential but the controller expects single-ended LVCMOS.

IC Role / Device Role / Timing Role: Converts HCSL or SSTL differential clock from CPU/memory controller PHY to clean LVCMOS clock for DDR SDRAM timing inputs.

Use Value: Enables direct interface without external RC networks, preserving 350MHz bandwidth and 47–53% duty cycle required for DDR timing margins.

PCIe Reference Clock Buffering

Industrial PLC Timing Module

Use Scenario: Replicating and distributing PCIe Gen1/Gen2 100MHz reference clock across multiple slots or add-in cards in embedded servers.

IC Role / Device Role / Timing Role: Buffers and fans out LVDS PCIe REFCLK to multiple endpoints while maintaining PCIe jitter compliance (1.5ps RMS mask).

Use Value: Delivers 0.11ps additive jitter - well below PCIe Gen2 limit - enabling reliable multi-lane link training and stable link widths.

Use Scenario: Providing isolated, low-jitter clock signals to real-time microcontrollers and analog front-ends in programmable logic controllers operating in noisy factory environments.

IC Role / Device Role / Timing Role: Accepts robust LVDS or LVPECL industrial backplane clock and delivers clean 3.3V LVCMOS timing to MCU peripherals and ADCs.

Use Value: Differential input rejection and –40°C to +85°C operation ensure timing integrity despite EMI and temperature cycling in industrial enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential-to-single-ended clock translation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICS83021AMI-01LF	Same pinout, identical electrical specs, but marked as obsolete by Renesas; last-time-buy status confirmed.	No functional difference; suitable only for legacy BOM continuity with existing inventory.	Select 830S21AMI-01LFT for new designs due to active production and full lifecycle support.
Si53301-A-GM	SiFive clock buffer with 350MHz capability, but requires external configuration EEPROM and lacks integrated input bias resistors.	Used in programmable clock trees; adds complexity for fixed-translation use cases.	Choose 830S21AMI-01LFT when simplicity, zero-config operation, and minimal external components are prioritized.

Compared with ICS83021AMI-01LF and Si53301-A-GM, the 830S21AMI-01LFT offers drop-in replacement readiness for legacy IDT designs, eliminates configuration overhead, and reduces component count via integrated biasing - making it optimal for cost-sensitive, high-volume clock translation where deterministic behavior is critical.

Availability

830S21AMI-01LFT is available at Aetrix Electronics and suitable for FPGA clock distribution, DDR memory controller timing, and PCIe reference clock buffering requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.

Supply support for 830S21AMI-01LFT 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 through the merger of Renesas Technology and NEC Electronics, delivering high-performance analog, mixed-signal, and timing solutions.

The 830S21AMI-01LFT belongs to Renesas' HiPerClockS™ family of high-precision clock translators, engineered specifically for low-jitter, multi-standard clock interfacing in communications infrastructure, computing, and industrial automation.

FAQ

What is the function of pins 1 and 6 on the 830S21AMI-01LFT?

Pins 1 and 6 are no-connect (nc) terminals with no internal connection or function. They must remain unconnected in PCB layout to avoid unintended coupling or mechanical stress. The 830S21AMI-01LFT datasheet explicitly defines them as unused, and routing traces or placing vias on these pads violates the device's validated thermal and electrical performance envelope.

Does the 830S21AMI-01LFT support both 2.5V and 3.3V operation simultaneously?

No - the 830S21AMI-01LFT operates from a single VDD supply, selectable as either 2.5V (±5%) or 3.3V (±5%). Both input receiver and output driver share this rail; mixed-voltage operation is not supported. The 830S21AMI-01LFT must be powered at one nominal voltage, and its LVCMOS/LVTTL output levels scale accordingly (e.g., VOH ≈ 2.6V at 3.3V, 1.8V at 2.5V).

Can the 830S21AMI-01LFT accept single-ended inputs directly?

Yes - the 830S21AMI-01LFT differential inputs can be adapted for single-ended use via external biasing (e.g., R1/R2 divider to VDD/2 near CLK/nCLK pins), as documented in Figure 1 of the datasheet. However, the 830S21AMI-01LFT does not include internal termination for single-ended signals; external resistors are required to establish proper common-mode voltage.

What is the significance of the 'T' suffix in 830S21AMI-01LFT?

The 'T' in 830S21AMI-01LFT indicates tape-and-reel packaging - 1,000 units per reel - optimized for automated SMT placement. This contrasts with the tube-packaged 830S21AMI-01LF variant. Both share identical electrical specifications, SOIC-8 (M) package dimensions, and -40°C to +85°C temperature rating; only shipping format differs.

How does the OE pin behave at power-up for the 830S21AMI-01LFT?

The 830S21AMI-01LFT OE pin has an internal 51kΩ pullup resistor, so it defaults to logic high at power-up - enabling the Q output immediately after VDD stabilizes. No external pullup is required unless a specific power-on disable sequence is needed; asserting OE low places Q in high-impedance state within 8ns.

830S21AMI-01LFT Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:

Packaging:: Tape & Reel (TR)

Product Status:: Active

Translator Type:: Mixed Signal

Channel Type:: Unidirectional

Number of Circuits:: 1

Channels per Circuit:: 1

Voltage - VCCA:: -

Voltage - VCCB:: -

Input Signal:: HCSL, LVDS, LVHSTL, LVPECL, SSTL

Output Signal:: LVCMOS, LVTTL

Output Type:: Non-Inverted

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)

830S21AMI-01LFT FAQ

1.How can I place an order for 830S21AMI-01LFT through Aetrix?

Please submit a Request for Quotation (RFQ) for 830S21AMI-01LFT 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 830S21AMI-01LFT reliable?

The price and inventory of 830S21AMI-01LFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 830S21AMI-01LFT is usually 5 days.

3.What payment methods are accepted for 830S21AMI-01LFT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 830S21AMI-01LFT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 830S21AMI-01LFT?

830S21AMI-01LFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 830S21AMI-01LFT 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 830S21AMI-01LFT?

For technical support, including 830S21AMI-01LFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 830S21AMI-01LFT requirements.

6.How does Aetrix verify that 830S21AMI-01LFT is sourced from the original manufacturer or authorized distributors?

All 830S21AMI-01LFT 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 830S21AMI-01LFT meets industry standards.

7.What is the process for return or replacement of 830S21AMI-01LFT?

All 830S21AMI-01LFT units undergo pre-shipment inspection (PSI). If there is an issue with 830S21AMI-01LFT, 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 830S21AMI-01LFT part is unused and in its original packaging.

Return procedure for 830S21AMI-01LFT:

1.Submit a request within 90 days.

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

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