Microchip Technology SY10EP01VKI-TR
- Part No.:
- SY10EP01VKI-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
SY10EP01VKI-TR.pdf
- Description:
- IC GATE OR/NOR 3.3V/5V 4IN 8MSOP
- Quantity:
- Payment:

- Shipping:

Inventory:3,766
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Product details
Overview
SY10EP01VKI-TR from Micrel is a 4-input ECL OR/NOR gate operating at 3.3V or 5V supply, delivering 230ps typical propagation delay, 3GHz maximum toggle frequency, and differential Q and /Q outputs with internal 75kΩ input pulldowns-used in high-speed clock distribution and logic decision circuits in telecom line cards.
For engineers reviewing the SY10EP01VKI-TR datasheet, SY10EP01VKI-TR pinout, SY10EP01VKI-TR application, or SY10EP01VKI-TR equivalent, key selection factors include ECL-compatible voltage thresholds (VIH = –1.21V min, VIL = –1.935V max), industrial temperature range (–40°C to +85°C), MSOP-8 package, and guaranteed AC performance up to 3GHz.
Technical Context
The SY10EP01VKI-TR implements true ECL logic with dual complementary outputs (Q and /Q) and operates with either negative VEE (–3.0V to –5.5V) or positive VCC (3.0V to 5.5V) supply configuration. Its architecture supports DC-coupled termination into 50Ω loads referenced to VCC – 2.0V.
Input thresholds track supply rails 1:1, enabling interoperability across mixed-voltage ECL systems. The device exhibits 5ps typical output skew and 110ps typical rise/fall times (20%–80%), optimized for minimal jitter accumulation in cascaded logic paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Options | 3.3V or 5V operation (VCC = 0V/VEE = –3.0V to –5.5V or VCC = 3.0V to 5.5V/VEE = 0V) |
| Propagation Delay | 230ps typical (D→Q, 50Ω load to VCC – 2.0V); enables sub-nanosecond timing critical paths |
| Max Toggle Frequency | 3GHz (guaranteed functional limit); supports NRZ data rates up to 3 Gbps |
| Input Pulldown | 75kΩ internal resistors; ensures defined LOW state when inputs float-no external biasing needed |
| Output Voltage Swing | VOL = –1.935V min, VOH = –0.885V max (50Ω load); compatible with standard ECL-100K receiver thresholds |
| Operating Temp | –40°C to +85°C industrial range; validated for base station control and optical module environments |
Pinout & Package
SY10EP01VKI-TR is housed in an 8-pin MSOP (K8-1) package with exposed pad, 0.65mm pitch, and Pb-free NiPdAu lead finish per ordering code KI variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D3 | ECL Data Inputs | Four independent differential-input logic ports accepting standard ECL voltage levels |
| Q | True Output | Active-HIGH ECL output; defaults LOW if all inputs open (due to internal pulldowns) |
| /Q | Complementary Output | Inverted copy of Q; enables differential signaling or clock/data pair routing |
| VCC | Positive Supply Rail | Accepts 3.0V–5.5V when VEE = 0V; used in positive-ECL configurations |
| VEE | Negative Supply Rail | Accepts –3.0V to –5.5V when VCC = 0V; used in traditional negative-ECL systems |
Key Features
| Feature | Design Value |
|---|---|
| 4-input OR/NOR logic function | Single-gate implementation of both OR and NOR truth tables via complementary outputs-reduces board space vs discrete gates |
| Industrial temperature rating | Validated operation from –40°C to +85°C without derating-suitable for outdoor telecom and industrial control enclosures |
| Internal 75kΩ input pulldowns | Eliminates need for external bias resistors on unterminated inputs-reduces BOM count and layout complexity |
| 3GHz bandwidth capability | Enables use in high-speed serial link monitoring, clock fanout, and jitter-sensitive test equipment front-ends |
Applications
| Optical Transceiver Timing | High-Speed Test Equipment |
|---|---|
Use Scenario: Synchronizing laser driver enable signals and post-amplifier sampling clocks in 2.5G/10G SFP+ modules. IC Role / Device Role / Timing Role: OR/NOR gate performing logic arbitration between multiple clock domains before feeding CDR circuitry. Use Value: 230ps propagation delay minimizes setup/hold margin loss; differential Q and /Q outputs reduce common-mode noise coupling into analog front-end. | Use Scenario: Generating precise strobe and trigger edges in automated test equipment (ATE) pattern generators. IC Role / Device Role / Timing Role: High-fidelity logic gate shaping fast edge transitions for stimulus signal generation. Use Value: 3GHz toggle frequency and 110ps typical rise time preserve signal integrity through multi-stage logic chains without added jitter. |
| Base Station Clock Distribution | Radar Signal Processing |
Use Scenario: Fanout and level translation of reference clocks across FPGA, ADC, and RFIC subsystems in 4G/LTE macro base stations. IC Role / Device Role / Timing Role: ECL-level clock buffer with OR/NOR functionality for redundancy switching between primary and backup oscillators. Use Value: Industrial temperature range and 75kΩ internal pulldowns ensure reliable failover behavior under thermal cycling and unpowered input conditions. | Use Scenario: Real-time pulse-width discrimination and gating of IF signals in airborne SAR radar receivers. IC Role / Device Role / Timing Role: Fast logic decision element comparing delayed and undelayed signal paths to extract target return timing. Use Value: Sub-300ps max propagation delay enables <100ps timing resolution-critical for <1m range bin accuracy in pulsed radar systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ECL logic gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC10EP01DTG | Same 4-input OR/NOR function, but in SOIC-8; no internal pulldowns-requires external biasing | Limited to commercial temp (0°C to +70°C); not rated for industrial ambient extremes | Select when SOIC footprint is required and external pull-downs are acceptable in controlled lab environments |
| SN65ELT22D | LVDS-compatible dual OR gate; 3.3V-only supply; 2.5ns propagation delay-slower than SY10EP01VKI-TR | Designed for LVDS interface layers, not ECL signal chains; incompatible voltage thresholds | Choose only for LVDS-based systems where ECL interoperability is not required |
Compared with MC10EP01DTG and SN65ELT22D, the SY10EP01VKI-TR uniquely combines industrial temperature rating, integrated input pulldowns, and 230ps propagation delay-making it the only option for ruggedized, high-speed ECL logic in telecom infrastructure.
Availability
SY10EP01VKI-TR is available at Aetrix Electronics and suitable for optical transceiver timing, base station clock distribution, and radar signal processing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SY10EP01VKI-TR 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
Micrel, Inc. was a U.S.-based semiconductor company specializing in high-performance analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The SY10EP01VKI-TR belongs to Micrel's ECL Pro™ family-designed specifically for ultra-high-speed digital logic in telecom, test equipment, and defense electronics where sub-nanosecond timing precision and ECL compatibility are mandatory.
FAQ
What is the supply voltage configuration supported by SY10EP01VKI-TR?
The SY10EP01VKI-TR supports two mutually exclusive supply modes: (1) VCC = 0V with VEE = –3.0V to –5.5V (traditional negative-ECL), or (2) VCC = 3.0V to 5.5V with VEE = 0V (positive-ECL). Both configurations deliver identical logic behavior and AC performance. The SY10EP01VKI-TR must never be operated with both rails simultaneously energized outside these defined configurations.
Does SY10EP01VKI-TR require external pull-up or pull-down resistors on its inputs?
No. The SY10EP01VKI-TR integrates 75kΩ internal pulldown resistors on all D0–D3 inputs. This ensures a defined LOW state when inputs are left floating-eliminating the need for external biasing components. The SY10EP01VKI-TR Q output also defaults LOW under open-input conditions, simplifying system-level fault tolerance design.
What is the meaning of "KI" in SY10EP01VKI-TR and how does it affect packaging?
The "KI" suffix in SY10EP01VKI-TR denotes the industrial temperature grade (–40°C to +85°C) and K8-1 MSOP-8 package with NiPdAu Pb-free finish. Unlike Z-suffix SOIC variants, the KI version uses a smaller 3mm × 3mm MSOP body with thermal pad-enabling higher density layouts in space-constrained optical modules. The SY10EP01VKI-TR is supplied in tape-and-reel format (TR) for automated assembly.
Can SY10EP01VKI-TR drive 50Ω transmission lines directly?
Yes. The SY10EP01VKI-TR is characterized with 50Ω loads referenced to VCC – 2.0V, matching standard ECL-100K termination practices. Its output stage delivers ±50mA continuous current and supports 20%–80% rise/fall times of 60–180ps-enabling direct connection to controlled-impedance PCB traces without external buffering. The SY10EP01VKI-TR maintains specified VOL/VOH levels under this loading condition.
How does the truth table of SY10EP01VKI-TR define OR and NOR functionality?
The SY10EP01VKI-TR implements OR logic on Q (Q = HIGH if any D0–D3 is HIGH) and NOR logic on /Q (/Q = HIGH only if all D0–D3 are LOW). The truth table confirms that Q goes HIGH for any single HIGH input, while /Q remains HIGH exclusively when all four inputs are LOW. This dual-output structure allows simultaneous access to both logic functions without additional gates-the SY10EP01VKI-TR thus serves as a compact, high-speed logic building block.
SY10EP01VKI-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- 10EP
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- NOR/OR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 4
- Schmitt Trigger Input:
- No
- Output Type:
- Differential
- Current - Output High, Low:
- -
- Voltage - Supply:
- 3V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
SY10EP01VKI-TR FAQ
1.How can I place an order for SY10EP01VKI-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SY10EP01VKI-TR 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 SY10EP01VKI-TR reliable?
The price and inventory of SY10EP01VKI-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SY10EP01VKI-TR is usually 5 days.
3.What payment methods are accepted for SY10EP01VKI-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SY10EP01VKI-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SY10EP01VKI-TR?
SY10EP01VKI-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SY10EP01VKI-TR 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 SY10EP01VKI-TR?
For technical support, including SY10EP01VKI-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SY10EP01VKI-TR requirements.
6.How does Aetrix verify that SY10EP01VKI-TR is sourced from the original manufacturer or authorized distributors?
All SY10EP01VKI-TR 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 SY10EP01VKI-TR meets industry standards.
7.What is the process for return or replacement of SY10EP01VKI-TR?
All SY10EP01VKI-TR units undergo pre-shipment inspection (PSI). If there is an issue with SY10EP01VKI-TR, 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 SY10EP01VKI-TR part is unused and in its original packaging.
Return procedure for SY10EP01VKI-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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