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PL123-09OC-R Equivalent & Substitute Parts
Part Overview
The PL123-09OC-R is a clock multiplexer IC manufactured by Microchip Technology, designed for 1:9 clock distribution with a maximum frequency of 134MHz in a 16-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. Functionally equivalent alternatives from Renesas Electronics Corporation and onsemi provide compatible zero delay buffer solutions with matching electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PL123-09OC-R |
| Manufacturer | Microchip Technology |
| Category | Clock/Timing |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Ratio - Input:Output | 1:9 |
| Frequency - Max | 134MHz |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| PLL | Yes with Bypass |
| Number of Circuits | 1 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Discontinued at DiGi Electronics |
Substitute Part Grouping Explanation
Substitution eligibility for the PL123-09OC-R is determined by strict alignment of the following critical parameters:
Mandatory Matching Parameters:
- Package / Case: 16-TSSOP (0.173", 4.40mm Width)
- Ratio - Input:Output: 1:9
- Voltage - Supply: 3V ~ 3.6V
- Mounting Type: Surface Mount
- PLL: Yes with Bypass
- Number of Circuits: 1
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
Allowable Variation Parameters:
- Frequency - Max: 133MHz to 134MHz (within 1MHz tolerance)
- Operating Temperature: 0°C ~ 70°C or -40°C ~ 85°C (extended range acceptable)
- Packaging Format: Cut Tape (CT), Tube, or Tape & Reel (TR)
- Product Status: Active or Obsolete (functional equivalence maintained)
All substitute parts listed below meet these criteria and are electrically and mechanically compatible with the original PL123-09OC-R specification.
Parameter Comparison
| Part Number | Manufacturer | Frequency - Max | Operating Temperature | Packaging | Product Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|
| PL123-09OC-R | Microchip Technology | 134MHz | 0°C ~ 70°C | Cut Tape (CT) & Digi-Reel® | Discontinued | 1856 |
| 2309-1HPGG | Renesas Electronics | 133MHz | 0°C ~ 70°C | Tube | Active | 3021 |
| 2309-1HPGG8 | Renesas Electronics | 133MHz | 0°C ~ 70°C | Tape & Reel (TR) | Active | 3800 |
| 2309-1HPGGI | Renesas Electronics | 133MHz | -40°C ~ 85°C | Tube | Active | 844 |
| 2309-1HPGGI8 | Renesas Electronics | 133MHz | -40°C ~ 85°C | Tape & Reel (TR) | Active | 1107 |
| 2309A-1HPGG | Renesas Electronics | 133MHz | 0°C ~ 70°C | Tube | Active | 2420 |
| 2309A-1HPGG8 | Renesas Electronics | 133MHz | 0°C ~ 70°C | Tape & Reel (TR) | Active | 918 |
| 2309A-1HPGGI | Renesas Electronics | 133MHz | -40°C ~ 85°C | Tube | Active | 1055 |
| 2309A-1HPGGI8 | Renesas Electronics | 133MHz | -40°C ~ 85°C | Tape & Reel (TR) | Active | 745 |
| NB2309AI1DTR2G | onsemi | 133.33MHz | -40°C ~ 85°C | Cut Tape (CT) | Obsolete | 3032 |
Engineering Selection Recommendations
For Standard Operating Temperature Range (0°C ~ 70°C):
Select from the Renesas 2309-1HPGG or 2309A-1HPGG series. Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating. Choose packaging based on procurement requirements: Tube (2309-1HPGG, 2309A-1HPGG) for smaller quantities or Tape & Reel (2309-1HPGG8, 2309A-1HPGG8) for high-volume production. The 2309-1HPGG8 variant offers the highest current inventory at 3800 units.
For Extended Operating Temperature Range (-40°C ~ 85°C):
Select from the Renesas 2309-1HPGGI or 2309A-1HPGGI series. These variants maintain active product status with identical electrical specifications and compliance certifications. Tape & Reel packaging (2309-1HPGGI8, 2309A-1HPGGI8) is recommended for production environments.
For Legacy System Compatibility:
The onsemi NB2309AI1DTR2G provides functional equivalence with extended temperature range and Cut Tape packaging. This part is marked obsolete but remains in inventory. Use only when Renesas alternatives are unavailable or when existing designs specifically reference onsemi components.
All recommended substitutes maintain ROHS3 compliance, MSL Level 1 rating, and identical package geometry, ensuring direct PCB compatibility without layout modifications.
Frequently Asked Questions (FAQ)
Q: Can I use a substitute part with a different operating temperature range?
A: Yes. The PL123-09OC-R operates at 0°C ~ 70°C. Substitute parts rated for -40°C ~ 85°C (such as 2309-1HPGGI variants) are fully compatible and provide extended temperature capability. This is a functional upgrade with no compatibility concerns.
Q: What is the difference between Tube and Tape & Reel packaging?
A: Both packaging formats contain identical die and electrical specifications. Tube packaging is suitable for manual assembly and smaller production runs. Tape & Reel packaging is optimized for automated pick-and-place assembly in high-volume manufacturing. Select based on your assembly process requirements.
Q: Are the Renesas 2309-1HPGG and 2309A-1HPGG variants interchangeable?
A: Yes. Both variants meet all electrical and mechanical substitution criteria for the PL123-09OC-R. The "A" designation indicates a product line variant from Renesas but does not affect functional compatibility. Select based on availability and inventory levels.
Q: Why is the frequency specification 133MHz instead of 134MHz?
A: The substitute parts operate at 133MHz, which is within acceptable tolerance for clock distribution applications. The 1MHz difference does not affect functional compatibility in standard clock multiplexing circuits. The onsemi NB2309AI1DTR2G operates at 133.33MHz, providing even closer frequency alignment.
Q: Can I use the onsemi NB2309AI1DTR2G if Renesas parts are unavailable?
A: Yes. The NB2309AI1DTR2G meets all mandatory electrical and mechanical parameters. However, it is marked as obsolete, indicating discontinued manufacturing. Use only when active Renesas alternatives are unavailable or when existing designs specifically reference onsemi components.
Q: Do all substitute parts have the same RoHS and MSL compliance?
A: Yes. All listed substitutes are ROHS3 compliant with MSL Level 1 (Unlimited) rating, matching the original PL123-09OC-R specification. This ensures compliance with environmental and reliability standards across all alternatives.
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