Microchip Technology SY10EP08VZC-TR
- Part No.:
- SY10EP08VZC-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SY10EP08VZC-TR.pdf
- Description:
- IC GATE XOR/XNOR 3.3V/5V 8-SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SY10EP08VZC-TR from Micrel is a 2-input differential ECL/XLPECL XOR/XNOR gate operating at 3.3V or 5V supply, delivering >3 GHz maximum toggle frequency, 200 ps typical propagation delay, and 50Ω-terminated outputs referenced to VCC–2.0V. It serves high-speed logic decision and phase comparison in telecom clock recovery and RF sampling systems.
For engineers reviewing the SY10EP08VZC-TR datasheet, SY10EP08VZC-TR pinout, SY10EP08VZC-TR application, or SY10EP08VZC-TR equivalent, key selection criteria include differential input voltage swing (150–1200 mV), output voltage levels (e.g., VOH = –1010 mV @ 5V PECL), thermal resistance (θJA = 160°C/W for SOIC), and commercial-grade temperature range (–40°C to +85°C).
Technical Context
The SY10EP08VZC-TR implements true differential ECL logic with internal pulldown on D inputs and pulldown/pullup on /D inputs, enabling robust noise immunity and rail-to-rail switching. Its Q output defaults LOW when inputs are open or at VEE, supporting fail-safe system initialization.
It supports three ECL operating modes: NECL (VCC = 0V, VEE = –5.5V to –3.0V), 3.3V LVPECL (VCC = 3.3V, VEE = 0V), and 5.0V PECL (VCC = 5.0V, VEE = 0V), with all DC parameters scaling 1:1 with VCC and loading standardized to 50Ω to VCC–2.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | Supports 3.3V LVPECL, 5V PECL, or NECL (VEE = –5.5V to –3.0V); enables interoperability across legacy and modern ECL systems. |
| Max Toggle Frequency | >3 GHz typical - validated for high-speed serial data path decision logic and clock-domain XOR-based phase detection. |
| Propagation Delay | 120–260 ps (typ. 200 ps) - ensures sub-nanosecond timing alignment critical in SERDES and jitter-cleaning circuits. |
| Input Voltage Swing | 150–1200 mV differential - accommodates low-swing signaling while maintaining noise margin in dense PCB layouts. |
| Output Termination | 50Ω to VCC–2.0V - matches standard ECL transmission line impedance and eliminates need for external termination resistors. |
| Power Supply Current | 20–38 mA - scales linearly with VCC; enables predictable power budgeting in multi-gate ECL arrays. |
| Operating Temperature | –40°C to +85°C - qualified for commercial industrial environments including base station RF front-ends and test equipment. |
Pinout & Package
SY10EP08VZC-TR is housed in an 8-pin SOIC package (Z8-1 footprint), with gull-wing leads, Sn-Pb finish, and Pb-free variants available. Package thermal resistance is 160°C/W (still air) and 109°C/W (500 lfpm airflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (D0) | Differential Data Input | True-side input with internal 50Ω pulldown; accepts LVPECL/PECL/NECL logic levels. |
| 2 (/D0) | Differential Complement Input | Complement-side input with internal pulldown + pullup; provides common-mode rejection and bias stability. |
| 3 (D1) | Differential Data Input | Second true-side input; identical biasing and AC response as D0 for matched channel performance. |
| 4 (/D1) | Differential Complement Input | Second complement input; enables full differential XOR/XNOR truth table operation without external biasing. |
| 5 (Q) | Differential Output | True output; defaults LOW if all inputs float or connect to VEE - supports safe power-up sequencing. |
| 6 (/Q) | Differential Complement Output | Complement output; fully complementary to Q with matched rise/fall times (70–170 ps). |
| 7 (VCC) | Positive Supply Rail | Accepts 3.3V, 5V, or 0V (for NECL mode); all I/O levels scale 1:1 with VCC per datasheet Note 2. |
| 8 (VEE) | Negative Supply Rail | Ground (0V) for PECL/LVPECL; –3.0V to –5.5V for NECL; defines output common-mode reference. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Input Biasing | Integrated pulldown on D pins and pulldown+pullup on /D pins eliminate external bias networks and reduce layout area. |
| Fault-Safe Output Default | Q output asserts LOW when inputs are open or tied to VEE - prevents metastability during power ramp or signal loss. |
| Multi-Voltage Mode Support | Single device operates in NECL, 3.3V LVPECL, and 5V PECL configurations via VCC/VEE selection - reduces BOM count across platform variants. |
| High-Speed AC Performance | 200 ps typical propagation delay and >3 GHz toggle frequency enable use in 10 Gbps+ serial link monitoring and clock regeneration. |
| Thermal Robustness | θJA = 160°C/W (SOIC, still air) and θJC = 39°C/W - supports sustained operation in compact, convection-cooled modules. |
Applications
| Optical Transceiver Clock Recovery | RF Sampling Phase Comparator |
|---|---|
Use Scenario: Extracting clean clock signals from noisy high-speed optical data streams in SFP+ and XFP modules. IC Role / Device Role / Timing Role: Differential XOR gate performing phase comparison between delayed and undelayed data paths to generate error-correction feedback. Use Value: Sub-200 ps propagation delay and >3 GHz bandwidth maintain timing integrity across 10.3125 Gbps NRZ data, minimizing jitter accumulation. | Use Scenario: Real-time phase alignment of dual-channel RF ADC sampling clocks in wideband radar receivers. IC Role / Device Role / Timing Role: XNOR-based phase detector generating analog error voltage proportional to clock skew between two 2.4 GHz sampling clocks. Use Value: Matched D/Q and /D//Q paths ensure <10 ps duty-cycle distortion, preserving ENOB in 12-bit, 2.6 GSPS converters. |
| High-Speed Test Equipment Pattern Generator | SONET/SDH Frame Synchronization |
Use Scenario: Generating precise, glitch-free toggling patterns for validating jitter tolerance in 10G Ethernet PHYs. IC Role / Device Role / Timing Role: XOR gate combining master clock and programmable pattern bits to produce edge-rich stimulus waveforms. Use Value: 50Ω-terminated outputs drive 50Ω coaxial traces directly without external resistors, preserving signal fidelity up to 3.5 GHz. | Use Scenario: Detecting frame alignment words (FAW) in OC-192 (9.953 Gbps) SONET line cards using parallel bit comparison. IC Role / Device Role / Timing Role: High-speed XOR array comparing incoming scrambled payload against local FAW template for lock acquisition. Use Value: Differential inputs reject common-mode noise from backplane routing, enabling reliable lock detection even under 15 mVpp interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential XOR/XNOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC100EP08DG | Same 8-pin SOIC package, identical pinout, but rated for –40°C to +85°C industrial range; slightly higher IEE (22–40 mA) and lower fMAX (2.5 GHz typ.) | Preferred where extended temperature validation is required; less suitable for >2.8 GHz toggle applications | Select MC100EP08DG only if industrial temp grade and legacy ON Semiconductor compatibility are mandatory. |
| SN65LVDS049PW | LVDS interface, not ECL-compatible; 8-pin TSSOP; no internal biasing; requires external termination and level-shifting for ECL systems | Applicable only in new LVDS-based designs; cannot replace SY10EP08VZC-TR without circuit redesign | Consider SN65LVDS049PW only in greenfield LVDS architectures - not a drop-in or functional substitute. |
Compared with MC100EP08DG and SN65LVDS049PW, SY10EP08VZC-TR delivers superior high-frequency operation (>3 GHz vs. 2.5 GHz) and native ECL biasing, eliminating external components and enabling direct integration into existing PECL/LVPECL clock trees without level translation.
Availability
SY10EP08VZC-TR is available at Aetrix Electronics and suitable for optical transceiver clock recovery, RF sampling phase comparison, and high-speed test equipment pattern generation requiring stable component supply and guaranteed commercial-temperature performance.
Supply support for SY10EP08VZC-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, RF, and timing solutions before its acquisition by Microchip Technology in 2015. It pioneered ECL Pro™ technology for ultra-low-jitter, high-speed logic.
The SY10EP08V product line was designed specifically for ECL, PECL, and LVPECL systems demanding sub-250 ps propagation delay and multi-voltage interoperability - targeting telecom infrastructure, test instrumentation, and military/aerospace timing subsystems.
FAQ
What voltage supplies does the SY10EP08VZC-TR support?
The SY10EP08VZC-TR supports three operating modes: NECL (VCC = 0V, VEE = –5.5V to –3.0V), 3.3V LVPECL (VCC = 3.3V ±0.3V, VEE = 0V), and 5.0V PECL (VCC = 5.0V ±0.5V, VEE = 0V). All DC parameters scale linearly with VCC, and outputs are terminated to VCC–2.0V via 50Ω loads.
Does the SY10EP08VZC-TR require external biasing resistors?
No. The SY10EP08VZC-TR integrates internal pulldown resistors on D0 and D1 inputs and pulldown + pullup resistors on /D0 and /D1 inputs. This eliminates the need for external bias networks and simplifies PCB layout for high-density ECL designs.
What is the guaranteed maximum toggle frequency for the SY10EP08VZC-TR?
The SY10EP08VZC-TR has a guaranteed maximum toggle frequency >3 GHz for functional operation. This specification is validated under NECL conditions (VCC = 0V, VEE = –3.0V to –5.5V) with 750 mV differential input swing and 50Ω output loading to VCC–2.0V.
How does the SY10EP08VZC-TR behave when inputs are left unconnected?
When all inputs are open or tied to VEE, the Q output of the SY10EP08VZC-TR defaults LOW. This fail-safe behavior ensures deterministic logic state during power-up, signal loss, or configuration transitions - critical for system reliability in telecom and test equipment.
Is the SY10EP08VZC-TR pin-compatible with other ECL XOR gates like the MC100EP08?
Yes - the SY10EP08VZC-TR shares identical pinout and function mapping with the MC100EP08DG in 8-pin SOIC (Z8-1) packaging. However, it is not pin-compatible with MSOP-packaged variants or non-ECL logic families due to differing supply and termination requirements.
SY10EP08VZC-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- 10EP
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- XOR/XNOR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2 Input (1, 1)
- 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-SOIC
SY10EP08VZC-TR FAQ
1.How can I place an order for SY10EP08VZC-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SY10EP08VZC-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 SY10EP08VZC-TR reliable?
The price and inventory of SY10EP08VZC-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SY10EP08VZC-TR is usually 5 days.
3.What payment methods are accepted for SY10EP08VZC-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SY10EP08VZC-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SY10EP08VZC-TR?
SY10EP08VZC-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SY10EP08VZC-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 SY10EP08VZC-TR?
For technical support, including SY10EP08VZC-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SY10EP08VZC-TR requirements.
6.How does Aetrix verify that SY10EP08VZC-TR is sourced from the original manufacturer or authorized distributors?
All SY10EP08VZC-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 SY10EP08VZC-TR meets industry standards.
7.What is the process for return or replacement of SY10EP08VZC-TR?
All SY10EP08VZC-TR units undergo pre-shipment inspection (PSI). If there is an issue with SY10EP08VZC-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 SY10EP08VZC-TR part is unused and in its original packaging.
Return procedure for SY10EP08VZC-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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