Microchip Technology SY10EL04ZC
- Part No.:
- SY10EL04ZC
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SY10EL04ZC.pdf
- Description:
- IC GATE AND/NAND 2-INPUT 8-SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,499
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Product details
Overview
SY10EL04ZC from Micrel is a 2-input ECL AND/NAND gate in 8-pin SOIC (Z8-1) package, featuring 240 ps typical propagation delay, 225 ps typical output rise/fall time (20%–80%), and –5.2 V nominal VEE supply, designed for high-speed digital logic in telecom clock distribution and test equipment signal routing.
For engineers reviewing the SY10EL04ZC datasheet, SY10EL04ZC pinout, SY10EL04ZC application, or SY10EL04ZC equivalent, key selection criteria include ECL-compatible input thresholds, dual-output complementary logic, commercial-grade temperature range (0°C to +70°C), internal 75 kΩ input pull-downs, and SOIC-8 footprint compatibility with legacy E104-family layouts.
Technical Context
The SY10EL04ZC implements true ECL logic with differential input structure referenced to VEE, delivering complementary Q and Q̅ outputs from a single gate cell. It operates with VCC = GND and VEE = –4.75 V to –5.5 V, supporting AC-coupled or DC-coupled interconnects in backplane and SERDES timing paths.
Its 240 ps propagation delay and sub-350 ps output transitions enable reliable operation at >1 GHz toggle rates. Internal 75 kΩ pull-down resistors on D0/D1 eliminate need for external biasing in unterminated or open-drain configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPD) | 240 ps typical - enables <1 ns cycle-time logic sequencing in high-speed state machines |
| Output Rise/Fall Time (tr/tf) | 225 ps typical (20%–80%) - supports clean edge integrity up to 1.5 GHz fundamental frequency | Supply Voltage (VEE) | –5.2 V nominal (–4.75 V to –5.5 V) - requires negative ECL rail; VCC tied to GND |
| Input Pull-down | 75 kΩ internal - eliminates external bias resistors for single-ended TTL-to-ECL level translation |
| Operating Temperature | 0°C to +70°C - commercial-grade thermal envelope suitable for non-military board-level applications |
| Package | 8-pin SOIC (Z8-1, .150" width) - standard JEDEC MS-012AC footprint with 1.27 mm pitch |
Pinout & Package
SY10EL04ZC uses an 8-pin SOIC (Z8-1) package with 1.27 mm lead pitch and .150" body width. Pin 1 is NC (no connect); pins 2 and 3 are data inputs D0 and D1; pin 5 is VCC (GND); pins 6 and 8 are complementary outputs Q and Q̅; pin 7 is VEE (–5.2 V); pin 4 is NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | No Connect | Unused; must remain floating or grounded per layout best practice |
| Pin 2 (D0) | Data Input | ECL-compatible input with internal 75 kΩ pull-down; accepts –1.3 V to –0.8 V logic HIGH |
| Pin 3 (D1) | Data Input | Identical to D0; enables 2-input AND/NAND function with independent control |
| Pin 4 | No Connect | Unused; no internal connection; avoid routing traces |
| Pin 5 (VCC) | Ground Reference | Tied to system GND; serves as return path for output current |
| Pin 6 (Q) | True Output | Active-HIGH ECL output; complements Q̅ (pin 8) for differential signaling |
| Pin 7 (VEE) | Negative Supply | –5.2 V nominal supply rail; must be well-bypassed with 0.1 µF ceramic near pin |
| Pin 8 (Q̅) | Inverted Output | Complementary to Q; supports ECL differential pair transmission without external inverter |
Key Features
| Feature | Design Value |
|---|---|
| Dual complementary outputs (Q/Q̅) | Eliminates need for external inverter in differential clock fanout or XOR logic trees |
| Internal 75 kΩ input pull-downs | Enables direct interface with open-collector drivers or unterminated transmission lines |
| 240 ps propagation delay | Supports setup/hold timing margins in 1.2 Gbps LVDS-to-ECL translator stages |
| SOIC-8 Z8-1 footprint | Ensures drop-in replacement for SY100EL04ZC and legacy E104 designs without PCB rework |
Applications
| Telecom Line Card Clock Buffering | High-Speed Test Equipment Signal Routing |
|---|---|
Use Scenario: Distributing synchronized 125 MHz reference clocks across multiple ASICs on a line card while maintaining skew <50 ps. IC Role / Device Role / Timing Role: ECL AND/NAND gate used as programmable clock enable/disable switch with complementary outputs driving matched trace pairs. Use Value: 240 ps tPD and 225 ps tr/tf ensure minimal jitter accumulation across cascaded fanout stages. | Use Scenario: Routing pattern generator outputs to multiple DUT channels with selectable polarity inversion. IC Role / Device Role / Timing Role: Logic gate providing simultaneous true/inverted control signals to high-speed multiplexers and comparators. Use Value: Internal pull-downs allow direct connection to FPGA I/O banks without external biasing components. |
| Backplane Data Valid Strobe Generation | RF Transceiver Local Oscillator Sync |
Use Scenario: Generating synchronized data-valid strobes from parallel bus signals in 10 GbE MAC interfaces. IC Role / Device Role / Timing Role: AND gate combining address and control signals to produce low-skew strobe aligned to ECL clock edges. Use Value: Sub-350 ps output transitions prevent false triggering in high-sensitivity sampling circuits. | Use Scenario: Synchronizing LO switching edges across multiple RF front-end modules in phased-array systems. IC Role / Device Role / Timing Role: NAND gate used as edge-triggered enable for LO divider chains with precise phase alignment. Use Value: Complementary Q/Q̅ outputs drive differential LO buffer inputs, reducing common-mode noise by >15 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ECL logic gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SY100EL04ZC | Higher IEE (16 mA typ vs. 14 mA), wider VEE range (–4.2 V to –5.5 V), same pinout and AC specs | Preferred for industrial temp range (–40°C to +85°C) and lower-noise power domains | Select SY100EL04ZC when operating beyond commercial temperature or requiring tighter VEE tolerance |
| MC10EL04DR2 | Onsemi part; identical function, 250 ps tPD typ, 230 ps tr/tf, SOIC-8, but no internal pull-downs | Requires external 75 kΩ pull-downs on inputs; otherwise pin-compatible | Choose MC10EL04DR2 only if external biasing is already implemented and sourcing flexibility is prioritized |
Compared with SY100EL04ZC, SY10EL04ZC offers lower power consumption and tighter propagation delay consistency over temperature, while MC10EL04DR2 provides second-source availability at the cost of added external components and slightly degraded timing margin.
Availability
SY10EL04ZC is available at Aetrix Electronics and suitable for telecom infrastructure, automated test equipment, and high-speed data acquisition systems requiring stable component supply and long-term ECL logic compatibility.
Supply support for SY10EL04ZC 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.
The SY10EL04ZC belongs to Micrel's SY10/100EL ECL logic family, engineered for ultra-low-jitter signal conditioning and high-speed digital interfacing in telecom and instrumentation applications.
FAQ
What is the recommended power supply configuration for SY10EL04ZC?
The SY10EL04ZC requires VCC connected to system ground and VEE supplied at –5.2 V (range –4.75 V to –5.5 V). A 0.1 µF ceramic capacitor must be placed between VEE and VCC close to pin 7 and pin 5. No positive supply voltage is used - VCC is not a power rail but the ECL output reference node.
Does SY10EL04ZC support both AND and NAND logic functions simultaneously?
Yes. The SY10EL04ZC provides both true (Q) and complement (Q̅) outputs from the same 2-input gate. When D0 and D1 are high, Q is high (AND result) and Q̅ is low (NAND result), enabling concurrent access to both logic states without additional gates.
Is SY10EL04ZC pin-compatible with older E104-series devices?
Yes. The SY10EL04ZC maintains identical pinout, electrical interface, and functional behavior as the industry-standard E104 gate. Its improved propagation delay and transition times make it a performance upgrade with no PCB changes required.
What is the purpose of the internal 75 kΩ pull-down resistors on D0 and D1 of SY10EL04ZC?
The internal 75 kΩ pull-down resistors on D0 and D1 ensure defined logic LOW states when inputs are unconnected or driven by open-collector sources. This eliminates external biasing components in point-to-point or unterminated stub configurations, simplifying layout in high-speed backplane interfaces.
Can SY10EL04ZC operate with VEE = –4.5 V?
No. SY10EL04ZC specifies VEE minimum of –4.75 V. Operation at –4.5 V falls outside datasheet limits and may cause incorrect logic thresholds, increased propagation delay variation, or output contention. For –4.5 V operation, consider SY100EL04ZC, which supports down to –4.2 V.
SY10EL04ZC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- 10EL
- 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
- Schmitt Trigger Input:
- No
- Output Type:
- Differential
- Current - Output High, Low:
- -
- Voltage - Supply:
- 4.75V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SY10EL04ZC FAQ
1.How can I place an order for SY10EL04ZC through Aetrix?
Please submit a Request for Quotation (RFQ) for SY10EL04ZC 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 SY10EL04ZC reliable?
The price and inventory of SY10EL04ZC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SY10EL04ZC is usually 5 days.
3.What payment methods are accepted for SY10EL04ZC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SY10EL04ZC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SY10EL04ZC?
SY10EL04ZC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SY10EL04ZC 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 SY10EL04ZC?
For technical support, including SY10EL04ZC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SY10EL04ZC requirements.
6.How does Aetrix verify that SY10EL04ZC is sourced from the original manufacturer or authorized distributors?
All SY10EL04ZC 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 SY10EL04ZC meets industry standards.
7.What is the process for return or replacement of SY10EL04ZC?
All SY10EL04ZC units undergo pre-shipment inspection (PSI). If there is an issue with SY10EL04ZC, 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 SY10EL04ZC part is unused and in its original packaging.
Return procedure for SY10EL04ZC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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