Microchip Technology SY100EL05ZI
- Part No.:
- SY100EL05ZI
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SY100EL05ZI.pdf
- Description:
- IC GATE AND/NAND DIFF 2INP 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:4,020
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Product details
Overview
SY100EL05ZI from Micrel is a 2-input differential AND/NAND gate IC operating in industrial temperature range (–40°C to +85°C), featuring 275 ps typical propagation delay, 225 ps typical output rise/fall time, and internal 75 kΩ input pull-down resistors. It functions as a high-speed ECL logic gate for timing-critical signal conditioning in telecom clock distribution.
For engineers reviewing the SY100EL05ZI datasheet, SY100EL05ZI pinout, SY100EL05ZI application, or SY100EL05ZI equivalent, key selection factors include differential ECL compatibility, VEE = –4.2 V to –5.5 V supply tolerance, common-mode input range down to –0.4 V, and SOIC-8 (Z8-1) package suitability for high-density backplane interfaces.
Technical Context
The SY100EL05ZI implements true differential ECL logic with clamp circuitry enabling open-input fail-safe behavior: unconnected inputs default HIGH due to internal pull-downs tied to VEE, preserving gate activity on remaining inputs. Its AC performance is specified under VCC = GND and VEE = –4.2 V to –5.5 V, with guaranteed minimum input swing of 150 mVpp.
It supports dual functional equivalence: as a 2-input differential AND/NAND gate, and-via De Morgan's law-as a 2-input differential OR/NOR gate when inputs are inverted. Output transitions maintain sub-350 ps rise/fall times across full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPD) | 275 ps typical - ensures sub-300 ps timing alignment in high-frequency clock fanout paths |
| Output Rise/Fall Time (tr/tf) | 225 ps typical - enables clean 2+ GHz signal edge integrity without excessive ringing |
| Input Swing (VPP) | 150 mV min - defines minimum differential voltage required to guarantee AC specs in noisy environments |
| Common-Mode Range (VCMR) | –0.4 V min - sets lower bound for valid input DC bias relative to VEE + 3.0 V reference |
| Supply Voltage (VEE) | –4.2 V to –5.5 V - compatible with standard –4.5 V ECL rails and allows margin for voltage droop |
| Power Supply Current (IEE) | 18–25 mA - determines thermal load and decoupling requirements for multi-gate layouts |
Pinout & Package
SY100EL05ZI is housed in an 8-pin SOIC package (Z8-1, 0.150" wide), lead-finished with Sn-Pb, rated for industrial temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | D0, D1 (Differential Inputs) | True differential pair accepting ECL-level signals; internally pulled down to VEE via 75 kΩ resistors |
| 3 | VCC | Connected to GND per datasheet; serves as return path for output current and reference for internal biasing |
| 4 | Q (Complementary Output) | Active-low NAND output; differential complement to pin 6 Q output |
| 5 | VEE | Negative supply rail (–4.2 V to –5.5 V); establishes ECL logic threshold and powers internal clamps |
| 6 | Q (True Output) | Active-high AND output; provides phase-aligned signal for downstream ECL receivers |
| 7, 8 | D0, D1 (Differential Inputs) | Second identical differential input pair - same function as pins 1 and 2; enables dual-gate layout sharing |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe open-input handling | Internal 75 kΩ pull-downs force HIGH state on unconnected inputs, maintaining functional continuity in partial-interface scenarios |
| Dual logic mode support | Same physical device implements AND/NAND or OR/NOR via input inversion-reducing BOM count in mixed-logic systems |
| Industrial temperature rating | Specified from –40°C to +85°C with no derating-enables deployment in base station RF modules and industrial controllers |
| High-bandwidth output transitions | 225 ps typical tr/tf supports >2 GHz fundamental frequency content without slew-induced jitter degradation |
Applications
| Telecom Clock Distribution | High-Speed Data Multiplexing |
|---|---|
Use Scenario: Fanout and level-shifting of 622 MHz SONET/SDH reference clocks across multiple line cards in central office switches. IC Role / Device Role / Timing Role: Differential AND/NAND gate used as a controlled clock enable switch with sub-300 ps skew control. Use Value: 275 ps tPD and matched output delays minimize inter-channel clock skew below 50 ps across 8-output fanout trees. | Use Scenario: Selecting between two high-speed serial data streams (e.g., CPRI or JESD204B lanes) in FPGA-based wireless transceivers. IC Role / Device Role / Timing Role: Dual-input differential gate acting as a low-jitter multiplexer control element synchronized to system clock edges. Use Value: 150 mV minimum input swing tolerance ensures reliable switching even under PCB trace loss and connector crosstalk. |
| Radar Signal Processing | Test Equipment Trigger Logic |
Use Scenario: Combining asynchronous event triggers (e.g., pulse-Doppler detection outputs) in phased-array radar front-ends. IC Role / Device Role / Timing Role: Differential OR/NOR configuration used to aggregate multiple detector outputs with deterministic setup/hold margins. Use Value: Clamp-based open-input resilience prevents false triggering during sensor hot-swap or intermittent cable faults. | Use Scenario: Generating precise, jitter-clean strobes for sampling oscilloscopes and bit-error-rate testers operating at 1–3 Gbps. IC Role / Device Role / Timing Role: High-speed AND gate synchronizing trigger pulses with system clock to suppress metastability in capture latches. Use Value: Sub-350 ps output transition times preserve <100 fs RMS jitter contribution to overall instrument timing uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential ECL gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SY100EL05ZC | Commercial temperature range (0°C to +70°C); otherwise identical AC/DC specs and pinout | Not qualified for industrial ambient or extended storage conditions | Select only for cost-sensitive, non-extended-temperature applications with full thermal management |
| MC100EL05DTG | Pin-compatible ON Semiconductor part; identical SOIC-8 footprint and ECL electrical interface, but VEE range –4.9 V to –5.5 V (tighter lower limit) | Requires verification of –4.9 V rail stability; not drop-in if system uses –4.5 V nominal VEE | Valid alternative where –4.9 V supply is stable and design allows minor VEE margin check |
Compared with SY100EL05ZC and MC100EL05DTG, the SY100EL05ZI uniquely guarantees full AC performance over –40°C to +85°C with –4.2 V VEE tolerance, making it the only choice for uncontrolled-ambient telecom infrastructure and military-grade test equipment.
Availability
SY100EL05ZI is available at Aetrix Electronics and suitable for telecom infrastructure, radar signal processing, high-speed test equipment, and industrial embedded controllers requiring stable component supply across extended temperature ranges.
Supply support for SY100EL05ZI 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 analog and mixed-signal semiconductor company acquired by Microchip Technology in 2015; known for high-performance ECL, PECL, and LVDS interface products.
The SY100EL05ZI belongs to Micrel's 100EL ECL logic family, designed specifically for ultra-low-skew, high-frequency signal routing in telecom, networking, and instrumentation systems.
FAQ
What logic families is SY100EL05ZI compatible with?
SY100EL05ZI is compatible with ECL (Emitter-Coupled Logic) and PECL (Positive ECL) systems when properly biased: its differential inputs accept ECL-level swings (–1.3 V to –2.0 V), and outputs drive standard ECL loads. It is not TTL-, CMOS-, or LVDS-compatible without level translation. The SY100EL05ZI requires VCC = GND and VEE = –4.2 V to –5.5 V for correct operation.
Does SY100EL05ZI support both AND and NAND functions simultaneously?
Yes - the SY100EL05ZI provides complementary outputs: pin 4 (Q) delivers the NAND result while pin 6 (Q) delivers the AND result. This allows concurrent access to both logic states without external inversion, reducing propagation delay and board area in critical timing paths using the SY100EL05ZI.
What is the purpose of the internal 75 kΩ pull-down resistors on SY100EL05ZI inputs?
The internal 75 kΩ pull-down resistors on SY100EL05ZI inputs ensure a defined HIGH logic state when inputs are left unconnected or floating. This fail-safe behavior prevents undefined gate output states during partial system bring-up or connector disconnection, enhancing robustness in field-deployed systems using the SY100EL05ZI.
Can SY100EL05ZI be used as an OR/NOR gate?
Yes - because a negative 2-input NAND is logically equivalent to a 2-input OR with inverted inputs, the SY100EL05ZI can implement OR/NOR functionality by inverting both differential inputs before applying them. Its differential architecture and clamp circuitry make this reconfiguration electrically valid and widely applied in legacy ECL designs using the SY100EL05ZI.
Is SY100EL05ZI RoHS-compliant?
No - the SY100EL05ZI uses Sn-Pb lead finish per its ordering information and is not RoHS-compliant. For Pb-free alternatives, Micrel designated SY100EL05ZG variants (NiPdAu finish with Pb-Free bar-line indicator); however, the SY100EL05ZI itself remains a Sn-Pb industrial-grade part intended for legacy-reliant systems.
SY100EL05ZI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- 100EL
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- AND/NAND 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:
- 4.2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SY100EL05ZI FAQ
1.How can I place an order for SY100EL05ZI through Aetrix?
Please submit a Request for Quotation (RFQ) for SY100EL05ZI 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 SY100EL05ZI reliable?
The price and inventory of SY100EL05ZI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SY100EL05ZI is usually 5 days.
3.What payment methods are accepted for SY100EL05ZI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SY100EL05ZI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SY100EL05ZI?
SY100EL05ZI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SY100EL05ZI 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 SY100EL05ZI?
For technical support, including SY100EL05ZI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SY100EL05ZI requirements.
6.How does Aetrix verify that SY100EL05ZI is sourced from the original manufacturer or authorized distributors?
All SY100EL05ZI 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 SY100EL05ZI meets industry standards.
7.What is the process for return or replacement of SY100EL05ZI?
All SY100EL05ZI units undergo pre-shipment inspection (PSI). If there is an issue with SY100EL05ZI, 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 SY100EL05ZI part is unused and in its original packaging.
Return procedure for SY100EL05ZI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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