Microchip Technology SY10EP01VZG
- Part No.:
- SY10EP01VZG
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SY10EP01VZG.pdf
- Description:
- IC GATE OR/NOR 3.3/5V 4IN 8-SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SY10EP01VZG from Micrel is an industrial-grade 4-input ECL OR/NOR gate operating from –5.5V to –3.0V VEE or +3.0V to +5.5V VCC, delivering 200ps typical propagation delay, 3GHz maximum toggle frequency, and differential Q/!Q outputs with 75kΩ internal input pulldowns. It serves high-speed logic decisioning in telecom clock distribution and RF signal path control.
For engineers reviewing the SY10EP01VZG datasheet, SY10EP01VZG pinout, SY10EP01VZG application, or SY10EP01VZG equivalent, key selection criteria include ECL-compatible voltage thresholds (VIH = –1.145V typ, VIL = –1.87V typ), industrial temperature range (–40°C to +85°C), Pb-free NiPdAu lead finish, and Z8-1 SOIC-8 package compatibility.
Technical Context
The SY10EP01VZG implements true ECL logic with complementary differential outputs and internally terminated inputs, supporting both negative-VEE and positive-VCC supply configurations. Its architecture enables sub-300ps propagation delay across temperature while maintaining <20ps device skew between D0–D3 inputs and Q output.
It operates as a single-gate function within the ECL Pro™ family, requiring no external biasing due to integrated 75kΩ pulldown resistors on all inputs and guaranteed LOW default state on Q when inputs are open. Output drive capability is rated for ±50mA continuous current into 50Ω loads referenced to VCC – 2.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCC = 0V, VEE = –5.5V to –3.0V; or VCC = +3.0V to +5.5V, VEE = 0V - supports dual-supply ECL or PECL interface designs |
| Propagation Delay | tPD = 150–250ps (typ 200ps) - enables sub-nanosecond timing-critical logic decisions |
| Max Toggle Frequency | fMAX = 3GHz - validated for high-speed serial data path enable/disable control |
| Input Thresholds | VIH = –1.145V, VIL = –1.87V (at TA = +25°C) - compatible with standard ECL logic families |
| Output Voltage Swing | VOH = –0.945V, VOL = –1.745V (50Ω to VCC – 2.0V) - ensures clean differential signaling margin |
| Operating Temp | –40°C to +85°C - qualified for industrial base station and test equipment environments |
| Package | Z8-1 SOIC-8 - industry-standard 150mil body, 1.27mm pitch, Pb-free NiPdAu finish |
Pinout & Package
SY10EP01VZG is housed in an 8-pin plastic SOIC (Z8-1) package with standard 150mil width and 1.27mm lead pitch. The package features Pb-free NiPdAu lead finish and is marked "HEP01" with Pb-free bar-line indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (D0) | ECL Data Input | Active-low compatible input with 75kΩ internal pulldown; accepts –1.935V to –0.885V logic levels |
| 2 (D1) | ECL Data Input | Identical electrical behavior to D0; supports wired-OR expansion with other ECL gates |
| 3 (D2) | ECL Data Input | Same VIH/VIL thresholds and input leakage (<150µA HI, >0.5µA LO); no external termination required |
| 4 (D3) | ECL Data Input | Full 4-input OR/NOR functionality; truth table defines Q = D0+D1+D2+D3, /Q = !(D0+D1+D2+D3) |
| 5 (VEE) | Negative Power Supply | Primary return for –5.5V to –3.0V operation; must be decoupled locally to minimize ground bounce |
| 6 (/Q) | Complementary Output | Differential inverted output; matched rise/fall times (60–180ps) and skew <20ps vs Q |
| 7 (Q) | True Output | Primary OR result output; drives 50Ω load to VCC – 2.0V with –0.945V/–1.745V swing |
| 8 (VCC) | Positive Power Supply | Supports +3.0V to +5.5V operation mode; used with VEE = 0V for PECL-compatible configuration |
Key Features
| Feature | Design Value |
|---|---|
| 4-input OR/NOR logic | Single-package implementation of full Boolean OR with complementary /Q output - eliminates need for discrete inverters in feedback paths |
| 75kΩ internal input pulldowns | Guarantees defined LOW state on all inputs when floating - removes requirement for external bias resistors in unused input handling |
| Q output defaults LOW on open inputs | Fail-safe behavior during power-up or signal loss - prevents unintended assertion in clock gating or enable control circuits |
| 3GHz max toggle frequency | Validated AC performance for 1.5Gbps+ serial link control signals - suitable for high-speed multiplexer select and serializer/deserializer enable functions |
| Pb-free NiPdAu finish | RoHS-compliant termination with enhanced solderability and wire-bond reliability - qualified for industrial reflow profiles including peak 260°C |
Applications
| Telecom Clock Distribution | RF Signal Path Control |
|---|---|
Use Scenario: Selecting between redundant clock sources in synchronous optical networking (SONET/SDH) line cards. IC Role / Device Role / Timing Role: High-speed OR gate enabling failover switching with <300ps latency and minimal jitter addition. Use Value: Maintains deterministic timing alignment across 2.488Gbps OC-48 clock domains without external level-shifting or buffering. | Use Scenario: Enabling/disabling RF power amplifier stages in phased-array radar transceivers. IC Role / Device Role / Timing Role: Fast-enable logic element controlling PA bias sequencing with precise edge alignment to RF carrier edges. Use Value: Delivers sub-250ps enable delay and <20ps skew between parallel PA channels - critical for coherent beamforming accuracy. |
| High-Speed Test Equipment | Industrial Data Acquisition |
Use Scenario: Trigger arbitration in multi-channel digital pattern generators with nanosecond-level time resolution. IC Role / Device Role / Timing Role: Real-time OR combiner for asynchronous trigger inputs feeding FPGA-based sequencers. Use Value: Guarantees <250ps worst-case propagation and monotonic response under –40°C to +85°C - essential for repeatable test repeatability. | Use Scenario: Synchronizing analog-to-digital converter sampling windows across isolated sensor modules in factory automation PLCs. IC Role / Device Role / Timing Role: Industrial-temperature-rated logic gate generating synchronized START_CONV pulses from distributed control signals. Use Value: Operates reliably at –40°C ambient with no derating - eliminates cold-start failures in unheated manufacturing environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ECL OR/NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC10EP01DR2G | ON Semiconductor part; identical 4-input OR/NOR function, same SOIC-8 package, but uses Sn-Pb finish and commercial temp range (0°C to +70°C) | Limited to non-industrial environments; lacks Pb-free NiPdAu finish and extended temperature qualification | Select only for cost-sensitive commercial designs where industrial temp and RoHS compliance are not required |
| SN65EPT23D | Texas Instruments part; dual 2-input OR gate in SOIC-8; different logic topology (no NOR output), higher 350ps tPD, and +2.5V to +5.5V supply only | No complementary /Q output; incompatible with differential ECL signaling; requires level translation for legacy ECL systems | Use only in new +3.3V PECL designs where dual-gate density outweighs need for single-gate NOR functionality |
Compared with MC10EP01DR2G and SN65EPT23D, the SY10EP01VZG uniquely combines industrial temperature rating, Pb-free NiPdAu finish, true differential Q/!Q outputs, and sub-250ps propagation - making it the sole choice for ruggedized ECL timing and control in telecom infrastructure and defense electronics.
Availability
SY10EP01VZG is available at Aetrix Electronics and suitable for telecom infrastructure, RF test instrumentation, and industrial data acquisition systems requiring stable component supply across extended temperature and long product lifecycles.
Supply support for SY10EP01VZG 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 the ECL Pro™ family for ultra-fast logic interfacing.
The SY10EP01VZG belongs to Micrel's ECL Pro™ logic series, engineered specifically for sub-nanosecond timing-critical applications in telecom, military, and test equipment where traditional TTL or CMOS logic cannot meet speed or noise immunity requirements.
FAQ
What is the recommended power supply configuration for SY10EP01VZG in ECL mode?
The SY10EP01VZG supports two valid ECL supply configurations: VCC = 0V with VEE = –5.5V to –3.0V (standard negative-ECL), or VCC = +3.0V to +5.5V with VEE = 0V (PECL mode). In either case, outputs are referenced to VCC – 2.0V via 50Ω termination. Decoupling capacitors must be placed within 5mm of pins 5 (VEE) and 8 (VCC) to maintain signal integrity. The SY10EP01VZG does not support mixed-supply operation.
Does SY10EP01VZG require external pull-down resistors on its inputs?
No, the SY10EP01VZG integrates 75kΩ internal pulldown resistors on all four inputs (D0–D3), eliminating the need for external biasing. This ensures a defined LOW state when inputs are left unconnected or float during power-up. The internal pulldowns also guarantee that the Q output defaults LOW under open-input conditions - a key safety feature in clock gating and enable control circuits using the SY10EP01VZG.
What is the meaning of "HEP01" marking on SY10EP01VZG package?
"HEP01" is the top-side laser marking code for the SY10EP01VZG, indicating the specific die revision and product variant within Micrel's ECL Pro™ OR/NOR gate family. It appears alongside the Pb-free bar-line indicator on the Z8-1 SOIC-8 package. This marking is used for traceability and matches the ordering part number suffix "ZG", confirming industrial temperature grade and NiPdAu lead finish - distinct from "HEP01" markings on commercial-grade SY10EP01VZC parts.
Can SY10EP01VZG be used as a drop-in replacement for EL01 or E101 devices?
The SY10EP01VZG is functionally equivalent to the legacy EL01 and E101 quad OR/NOR devices per Micrel's datasheet, sharing identical logic function, pinout, and DC/AC specifications. However, it is a single-gate version - not a quad - so PCB layout must accommodate the 8-pin SOIC footprint rather than the 16-pin package of E101. No electrical redesign is needed, but board space and routing differ. The SY10EP01VZG retains full compatibility with EL01-level timing and voltage thresholds.
What is the maximum output current rating for SY10EP01VZG and how is it defined?
The SY10EP01VZG is rated for ±50mA continuous output current and ±100mA surge current per output (Q or /Q), measured into a 50Ω load referenced to VCC – 2.0V. This rating applies across the full industrial temperature range (–40°C to +85°C) and ensures reliable operation when driving transmission lines or fanout to multiple ECL inputs. Exceeding ±50mA continuously may cause thermal drift in VOH/VOL or accelerated aging - design margins should maintain ≤40mA average load per SY10EP01VZG output.
SY10EP01VZG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- 10EP
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-SOIC
SY10EP01VZG FAQ
1.How can I place an order for SY10EP01VZG through Aetrix?
Please submit a Request for Quotation (RFQ) for SY10EP01VZG 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 SY10EP01VZG reliable?
The price and inventory of SY10EP01VZG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SY10EP01VZG is usually 5 days.
3.What payment methods are accepted for SY10EP01VZG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SY10EP01VZG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SY10EP01VZG?
SY10EP01VZG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SY10EP01VZG 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 SY10EP01VZG?
For technical support, including SY10EP01VZG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SY10EP01VZG requirements.
6.How does Aetrix verify that SY10EP01VZG is sourced from the original manufacturer or authorized distributors?
All SY10EP01VZG 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 SY10EP01VZG meets industry standards.
7.What is the process for return or replacement of SY10EP01VZG?
All SY10EP01VZG units undergo pre-shipment inspection (PSI). If there is an issue with SY10EP01VZG, 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 SY10EP01VZG part is unused and in its original packaging.
Return procedure for SY10EP01VZG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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