My Inquiry
My Account
onsemi MC100E142FNR2G
- Part No.:
- MC100E142FNR2G
- Manufacturer:
- onsemi
- Category:
- Shift Registers
- Package:
- 28-LCC (J-Lead)
- Datasheet:
-
MC100E142FNR2G.pdf
- Description:
- IC REGISTER SHFT 9BIT ECL 28PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,742
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC100E142FNR2G from onsemi is a 9-bit ECL shift register optimized for byte-parity applications, supporting serial/parallel-in and serial/parallel-out operation with dual clock inputs (CLK1/CLK2), asynchronous master reset (MR), and 700 MHz minimum shift frequency. It operates in PECL mode (VCC = 4.2–5.7 V, VEE = 0 V) or NECL mode (VCC = 0 V, VEE = −4.2 to −5.7 V) and features internal 50 kΩ pulldown resistors on inputs.
For engineers reviewing the MC100E142FNR2G datasheet, pinout, applications, or equivalent options, key selection considerations include its ECL-compatible timing behavior, dual-clock synchronous shifting, byte-width data handling, and PLCC-28 packaging for high-speed backplane or telecom interface designs.
Technical Context
The MC100E142FNR2G implements a unidirectional 9-bit shift register with mode-select logic (SEL pin) toggling between LOAD (parallel data capture) and SHIFT (serial propagation from D0→Q0→Q1→…→Q8). Data latching occurs on the positive edge of either CLK1 or CLK2, with setup/hold times specified down to 50 ps (tS) and 75 ps (tH) for D inputs.
It integrates temperature-compensated ECL circuitry (100 Series), supports both PECL and NECL supply configurations, and delivers sub-1 ps RMS random jitter (tJITTER < 1 ps) with within-device output skew ≤75 ps (tSKEW). All Q outputs are unterminatable-no external termination required for basic shift functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 9-bit unidirectional ECL shift register with parallel load and serial shift modes |
| Max Shift Frequency | 700 MHz minimum - enables high-speed data serialization in telecom line cards |
| Supply Modes | PECL: VCC = 4.2–5.7 V, VEE = 0 V; NECL: VCC = 0 V, VEE = −4.2 to −5.7 V - supports legacy ECL infrastructure |
| Propagation Delay | tPLH/tPHL ≤ 1000 ps - ensures tight timing control in synchronous clock distribution paths |
| Input Pulldowns | Internal 50 kΩ resistors on all inputs - eliminates need for external biasing in unterminated systems |
| Jitter Performance | tJITTER < 1 ps RMS - critical for low-bit-error-rate serial links and clock forwarding |
| Operating Temp | 0°C to +85°C - qualified for industrial-grade embedded timing and data-path applications |
Pinout & Package
MC100E142FNR2G uses a 28-pin Plastic Leaded Chip Carrier (PLCC-28, Case 776), with exposed die pad not electrically connected. All VCC and VCCO pins are internally tied together; external connection of all VCC/VCCO and VEE pins to appropriate supplies is mandatory for functional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D8 | ECL Parallel Data Inputs | Accept 9-bit parallel word during LOAD mode; driven at ECL logic levels |
| S-IN | ECL Serial Data Input | Serial input path for SHIFT mode; synchronized to CLK1/CLK2 rising edge |
| SEL | Mode Select Input | LOW = LOAD (capture D0–D8), HIGH = SHIFT (propagate S-IN through Q0–Q8) |
| CLK1 / CLK2 | ECL Clock Inputs | Dual-edge-triggered clocks - either may serve as active clock; no phase relationship required |
| MR | Asynchronous Master Reset | Active-HIGH reset clears all 9 flip-flops to logic LOW regardless of clock state |
| Q0–Q8 | ECL Data Outputs | Unbuffered ECL outputs; may be left unterminated without affecting shift operation |
| VCC / VCCO | Positive Supply Pins | All tied internally; must be externally connected to +4.2–5.7 V (PECL) or 0 V (NECL) |
| VEE | Negative Supply Pin | Required for biasing - −4.2 to −5.7 V (NECL) or 0 V (PECL) |
Key Features
| Feature | Design Value |
|---|---|
| Byte-parity shift architecture | 9-bit width matches standard byte+parity bus structures - simplifies error detection integration |
| Dual independent clock inputs | CLK1 and CLK2 accept identical ECL waveforms - enables clock source redundancy or domain crossing |
| Unterminatable outputs | Q0–Q8 drive valid logic without 50 Ω termination - reduces BOM count and board space in point-to-point links |
| Temperature-compensated 100E series | Stable AC/DC performance across 0–85°C - eliminates recalibration in thermally varying enclosures |
| Internal input pulldowns | 50 kΩ resistors prevent floating inputs - removes need for external bias networks in unused signal paths |
Applications
| Telecom Line Card Timing | High-Speed Test Equipment |
|---|---|
|
Use Scenario: Serializing parallel status words from framers or mapping engines onto high-speed backplane links. IC Role / Device Role / Timing Role: 9-bit shift register synchronizing byte+parity data to system clock domain before transmission. Use Value: Enables deterministic latency alignment and eliminates metastability risk via synchronous LOAD/SHIFT control. |
Use Scenario: Generating precise multi-bit stimulus patterns for ATE pin electronics. IC Role / Device Role / Timing Role: Pattern generator core delivering glitch-free, skew-controlled parallel outputs from serial seed data. Use Value: Sub-1 ps jitter and ≤75 ps intra-device skew ensure nanosecond-level timing fidelity across all 9 outputs. |
| Radar Signal Processing | Industrial Protocol Bridge |
|
Use Scenario: Capturing and delaying ADC sample streams in phased-array radar beamforming modules. IC Role / Device Role / Timing Role: Pipeline delay element using cascaded SHIFT operations to introduce calibrated time offsets. Use Value: 700 MHz shift rate supports >1 GSPS sampling rates while maintaining deterministic integer-cycle delays. |
Use Scenario: Adapting parallel control words from legacy PLC CPUs to serialized fieldbus physical layers (e.g., Profibus DP). IC Role / Device Role / Timing Role: Protocol translation buffer converting byte-wide command registers into serial bitstreams. Use Value: Asynchronous MR allows safe reset during bus arbitration; dual-clock flexibility eases integration with mixed-timing masters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 9-bit ECL shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC10E142FNR2G | 10E-series variant; lower temp range (−40°C to +85°C), no internal temp compensation | Targeted at commercial-grade systems where cost sensitivity outweighs extended thermal stability | Select when operating ambient stays within −40°C to +85°C and budget constraints preclude 100E-grade parts |
| SN74AS888N | TTL-compatible 8-bit shift register; no ECL I/O, single clock, no SEL mode, max fCLK = 125 MHz | Used in legacy TTL subsystems requiring lower speed, non-differential signaling, and simpler control | Choose only for cost-driven, non-ECL environments where 8-bit width and 125 MHz limit are acceptable |
Compared with MC10E142FNR2G and SN74AS888N, the MC100E142FNR2G uniquely delivers ECL-speed (700 MHz), true 9-bit width, dual-clock flexibility, and temperature compensation - making it the sole option for industrial-grade, high-frequency byte-parity serialization where signal integrity and thermal stability are non-negotiable.
Availability
MC100E142FNR2G is available at Aetrix Electronics and suitable for telecom infrastructure, high-speed test instrumentation, and radar signal processing applications requiring stable component supply, Pb-free compliance, and long-term industrial lifecycle support.
Supply support for MC100E142FNR2G 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
onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient, high-performance analog, digital, and power devices for automotive, industrial, cloud, and communications markets.
The MC100E142FNR2G belongs to the ECLinPS™ 100E family - engineered specifically for high-speed, low-jitter data movement in telecom switching, test equipment, and military/aerospace timing systems where ECL signal integrity is essential.
FAQ
What is the maximum operating frequency of the MC100E142FNR2G?
The MC100E142FNR2G guarantees a minimum shift frequency of 700 MHz across its full operating temperature range (0°C to +85°C), with typical performance reaching 900 MHz at 25°C. This specification applies to both PECL and NECL supply configurations and is validated under transverse airflow ≥500 lfpm per the datasheet test conditions. The MC100E142FNR2G achieves this using optimized ECL gate design and internal temperature compensation.
Does the MC100E142FNR2G require external termination on its Q outputs?
No, the MC100E142FNR2G Q0–Q8 outputs do not require external termination for basic shift operation. The device is designed so that unterminated outputs still produce valid ECL logic levels. However, for optimal signal integrity in transmission-line environments (e.g., >10 cm traces), 50 Ω termination to VCC − 2.0 V is recommended per Application Note AND8020/D. Leaving outputs unterminated reduces power and noise but may increase reflections in impedance-mismatched layouts.
How does the SEL pin control operation mode in the MC100E142FNR2G?
The SEL pin on the MC100E142FNR2G selects between two mutually exclusive modes: SEL = LOW enables LOAD mode (parallel data D0–D8 captured on the next clock edge), and SEL = HIGH enables SHIFT mode (serial data from S-IN propagates through Q0→Q1→…→Q8 on each clock edge). Mode switching is synchronous - the new mode takes effect on the first subsequent clock edge after SEL transitions, ensuring glitch-free state changes without metastability.
What are the supply voltage requirements for MC100E142FNR2G in PECL mode?
In PECL mode, the MC100E142FNR2G requires VCC = +4.2 V to +5.7 V and VEE = 0 V. All VCC and VCCO pins must be externally connected to this supply; they are internally tied together. The device draws 120–165 mA (depending on temperature), and outputs are referenced to VCC − 2.0 V for proper 50 Ω termination. Operation outside this range risks parametric failure or permanent damage per the Absolute Maximum Ratings table.
Is the MC100E142FNR2G pin-compatible with the MC10E142FNR2G?
Yes, the MC100E142FNR2G is pin-compatible with the MC10E142FNR2G - both use identical PLCC-28 (Case 776) packaging and share identical pin functions, pin counts, and pin locations per Figure 1 and Table 1. The primary difference lies in electrical performance: the 100E version adds temperature compensation and extends DC/AC specs over temperature, while the 10E version is rated for −40°C to +85°C without compensation. No PCB layout change is needed for substitution.
MC100E142FNR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 100E
- Package/Case:
- 28-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Shift Register
- Output Type:
- Push-Pull
- Number of Elements:
- 1
- Number of Bits per Element:
- 9
- Function:
- Universal
- Voltage - Supply:
- 4.2V ~ 5.7V
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-PLCC (11.51x11.51)
MC100E142FNR2G FAQ
1.How can I place an order for MC100E142FNR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC100E142FNR2G 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 MC100E142FNR2G reliable?
The price and inventory of MC100E142FNR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC100E142FNR2G is usually 5 days.
3.What payment methods are accepted for MC100E142FNR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC100E142FNR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC100E142FNR2G?
MC100E142FNR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC100E142FNR2G 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 MC100E142FNR2G?
For technical support, including MC100E142FNR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC100E142FNR2G requirements.
6.How does Aetrix verify that MC100E142FNR2G is sourced from the original manufacturer or authorized distributors?
All MC100E142FNR2G 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 MC100E142FNR2G meets industry standards.
7.What is the process for return or replacement of MC100E142FNR2G?
All MC100E142FNR2G units undergo pre-shipment inspection (PSI). If there is an issue with MC100E142FNR2G, 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 MC100E142FNR2G part is unused and in its original packaging.
Return procedure for MC100E142FNR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC100E142FNR2G Tags
-
SN74HC164DR
Texas Instruments
-
SN74HC595DR
Texas Instruments
-
74HC595PW,118
Nexperia USA Inc.
-
SN74HC165PWR
Texas Instruments
-
HEF4094BT,653
Nexperia USA Inc.
-
74HC595D,118
Nexperia USA Inc.
-
SN74HC595PWR
Texas Instruments
-
74HC165D,653
Nexperia USA Inc.
-
SN74LV165APWR
Texas Instruments
-
74HC595BQ,115
Nexperia USA Inc.
-
74HC165BQ,115
Nexperia USA Inc.
-
CD4094BPWR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
