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100LVEL11M Clock Fanout Buffer Equivalent & Substitute Parts
Part Overview
The 100LVEL11M is a Clock Fanout Buffer (Distribution) IC manufactured by onsemi, designed for 1:2 clock distribution in ECL logic applications. This part operates within a 3V to 3.8V supply range and supports operating temperatures from -40°C to 85°C in an 8-SOIC surface mount package. The 100LVEL11M is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | 100LVEL11M |
|---|---|
| Manufacturer | onsemi |
| Type | Fanout Buffer (Distribution) |
| Ratio - Input:Output | 1:2 |
| Differential - Input:Output | Yes/Yes |
| Input Logic | ECL |
| Output Logic | ECL |
| Voltage - Supply | 3V ~ 3.8V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the 100LVEL11M is determined by the following critical parameters: 1:2 input-to-output ratio, differential input and output capability, ECL logic compatibility, 8-SOIC package form factor, and operating temperature range of -40°C to 85°C. Substitute parts are grouped into three categories based on supply voltage range and maximum frequency capability:
Group 1: Direct Voltage & Frequency Match (3V ~ 3.8V Supply) Parts maintaining the original 3V to 3.8V supply voltage specification with 1 GHz maximum frequency: MC100LVEL11DG, MC100LVEL11DR2G.
Group 2: Extended Frequency, Compatible Voltage (3V ~ 3.8V Supply) Parts with 3V to 3.8V supply voltage but higher maximum frequency capability (3 GHz): MC100LVEP11DG, MC100LVEP11DR2G, MC10LVEP11DR2G.
Group 3: Higher Supply Voltage, Extended Frequency (4.2V ~ 5.7V or 2.375V ~ 3.8V Supply) Parts with different supply voltage ranges: MC100EL11DG, MC100EL11DR2G (4.2V ~ 5.7V, 1.5 GHz), MC100EP11DG, MC100EP11DR2G (3V ~ 5.5V, 3 GHz), 85211AMI-03LF (3.135V ~ 3.465V, 700 MHz).
Parameter Comparison
| Part Number | Manufacturer | Ratio | Input Logic | Output Logic | Frequency - Max | Voltage - Supply | Operating Temp | Package | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| 100LVEL11M | onsemi | 1:2 | ECL | ECL | Not specified | 3V ~ 3.8V | -40°C ~ 85°C | 8-SOIC | Obsolete |
| MC100LVEL11DG | Motorola | 1:2 | ECL, PECL | ECL, PECL | 1 GHz | 3V ~ 3.8V | -40°C ~ 85°C | 8-SOIC | Active |
| MC100LVEL11DR2G | onsemi | 1:2 | ECL, PECL | ECL, PECL | 1 GHz | 3V ~ 3.8V | -40°C ~ 85°C | 8-SOIC | Active |
| MC100EL11DG | onsemi | 1:2 | ECL, PECL | ECL, PECL | 1.5 GHz | 4.2V ~ 5.7V | -40°C ~ 85°C | 8-SOIC | Active |
| MC100EL11DR2G | onsemi | 1:2 | ECL, PECL | ECL, PECL | 1.5 GHz | 4.2V ~ 5.7V | -40°C ~ 85°C | 8-SOIC | Active |
| MC100EP11DG | onsemi | 1:2 | ECL, PECL | ECL, PECL | 3 GHz | 3V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active |
| MC100EP11DR2G | onsemi | 1:2 | ECL, PECL | ECL, PECL | 3 GHz | 3V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active |
| MC100LVEP11DG | onsemi | 1:2 | CML, LVDS, PECL | ECL, PECL | 3 GHz | 2.375V ~ 3.8V | -40°C ~ 85°C | 8-SOIC | Active |
| MC100LVEP11DR2G | onsemi | 1:2 | CML, LVDS, PECL | ECL, PECL | 3 GHz | 2.375V ~ 3.8V | -40°C ~ 85°C | 8-SOIC | Active |
| MC10LVEP11DR2G | onsemi | 1:2 | CML, LVDS, PECL | ECL, PECL | 3 GHz | 2.375V ~ 3.8V | -40°C ~ 85°C | 8-SOIC | Active |
| 85211AMI-03LF | Renesas Electronics Corporation | 1:2 | HCSL, LVDS, LVHSTL, LVPECL, SSTL | LVHSTL | 700 MHz | 3.135V ~ 3.465V | -40°C ~ 85°C | 8-SOIC | Active |
Engineering Selection Recommendations
For applications requiring direct replacement of the obsolete 100LVEL11M with minimal design changes, MC100LVEL11DR2G (onsemi, Tape & Reel packaging) is the primary substitute. This part maintains identical supply voltage (3V ~ 3.8V), operating temperature range (-40°C ~ 85°C), 1:2 ratio, differential ECL input/output, and 8-SOIC package specifications. MC100LVEL11DR2G carries ROHS3 compliance and active product status.
For applications where higher frequency capability is acceptable within the 3V to 3.8V supply range, MC100LVEP11DR2G provides 3 GHz maximum frequency with extended input logic support (CML, LVDS, PECL) while maintaining the same supply voltage window and package form factor. This part is ROHS3 compliant and actively manufactured.
For applications with flexible supply voltage requirements, MC100EP11DR2G operates across 3V to 5.5V and provides 3 GHz maximum frequency with ROHS3 compliance and active status. This part accommodates broader power supply designs while maintaining the 1:2 ratio and 8-SOIC package.
The 85211AMI-03LF (Renesas) operates at 700 MHz with a narrower supply voltage range (3.135V ~ 3.465V) and outputs LVHSTL logic rather than ECL, making it suitable only for applications where output logic conversion is acceptable.
All recommended substitutes maintain the 8-SOIC (0.154", 3.90mm Width) package form factor, -40°C to 85°C operating temperature range, and 1:2 input-to-output ratio. Selection should be based on specific supply voltage availability, required maximum frequency, and input/output logic compatibility within the target application.
Frequently Asked Questions (FAQ)
Q: Can MC100LVEL11DR2G directly replace 100LVEL11M without circuit modifications?
A: MC100LVEL11DR2G maintains the same supply voltage range (3V ~ 3.8V), operating temperature (-40°C ~ 85°C), 1:2 ratio, differential ECL input/output, and 8-SOIC package as the 100LVEL11M. Direct substitution is supported from an electrical and mechanical standpoint.
Q: What is the difference between MC100LVEL11DR2G and MC100LVEP11DR2G?
A: MC100LVEL11DR2G operates at 1 GHz maximum frequency with ECL/PECL input and output logic. MC100LVEP11DR2G operates at 3 GHz maximum frequency and accepts CML, LVDS, and PECL input logic while outputting ECL or PECL. Both maintain the 3V to 3.8V supply voltage range and 8-SOIC package. Selection depends on required frequency and input signal compatibility.
Q: Why does 85211AMI-03LF have a different output logic (LVHSTL) compared to other substitutes?
A: The 85211AMI-03LF is manufactured by Renesas Electronics Corporation and is designed for applications requiring LVHSTL output logic. Its output logic differs from the ECL/PECL standard of other substitutes, making it suitable only for systems where output logic conversion or LVHSTL compatibility is specified.
Q: Are all substitute parts ROHS3 compliant?
A: MC100LVEL11DR2G, MC100EL11DG, MC100EL11DR2G, MC100EP11DG, MC100EP11DR2G, MC100LVEP11DG, MC100LVEP11DR2G, MC10LVEP11DR2G, and 85211AMI-03LF are all ROHS3 compliant. All parts carry REACH Unaffected status and EAR99 ECCN classification.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in Tube, Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel® packaging formats. MC100LVEL11DR2G, MC100EL11DR2G, MC100EP11DR2G, MC100LVEP11DR2G, and MC10LVEP11DR2G are supplied in Tape & Reel format suitable for automated assembly. MC100LVEL11DG, MC100EL11DG, MC100EP11DG, and MC100LVEP11DG are supplied in Tube packaging.
Q: Can I use MC100EP11DR2G in a 3V supply application?
A: Yes. MC100EP11DR2G operates across a 3V to 5.5V supply voltage range, which includes the 3V minimum specification. However, verify that your specific application circuit design and component tolerances support operation at the lower voltage boundary.
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