Part A
5PB1108CMGI
Renesas Electronics Corporation
- Lifecycle
- Active
- Stock
- 5463 Stückzahl
- Series
- Clock-Timing, Clock Buffers, Drivers
Replacement verdict
Compatible functional replacement candidate
The 5PB1110NDGI and 5PB1108CMGI are both Renesas clock fanout buffers from the same 5PB11xx family, sharing identical 1:10 LVCMOS output architecture, 1.8V to 3.3V supply range, and similar differential input capability. The primary distinction is package and channel configuration, making the 5PB1110NDGI a viable functional substitute for the 5PB1108CMGI in most clock distribution applications, provided the designer validates the package footprint and output count against the target PCB layout.
Output Type
High match
Supply Voltage Range
High match
Package Type
Validation required
Output Channel Count
Validation required
Parts at a glance
Part B
5PB1110NDGI
Renesas Electronics America Inc.
- Lifecycle
- Active
- Stock
- 7570 Stückzahl
- Package
- QFN-20
- Series
- Clock-Timing, Clock Buffers, Drivers
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 5PB1110NDGI | 5PB1108CMGI | Why it matters |
|---|---|---|---|
| Manufacturer | Renesas Electronics | Renesas Electronics | Same manufacturer ensures consistent quality and support ecosystem. |
| Function | Clock buffer / fanout buffer | Clock buffer / fanout buffer | Both serve the same core function, enabling direct functional substitution in clock distribution designs. |
| Number of Outputs | 10 | 8 | Output count determines how many clock loads can be driven; fewer outputs may require additional buffers. |
| Input Type | Differential (LVPECL/LVDS/HCSL/CML) | Differential (LVPECL/LVDS/HCSL/CML) | Input compatibility must match the upstream clock source for proper signal integrity. |
| Output Type | LVCMOS | LVCMOS | Output signaling standard must match downstream device requirements. |
| Supply Voltage | 3.3 V / 2.5 V | 3.3 V / 2.5 V | Supply voltage compatibility is essential for power rail design and level matching. |
| Package | VFQFPN-32 | VFQFPN-28 | Different package footprints affect PCB layout and may prevent drop-in replacement. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range ensures reliable operation in harsh environments. |
| Maximum Output Frequency | 200 MHz | 200 MHz | Frequency capability must exceed the system clock requirement for adequate margin. |
| Additive Jitter | Low (typical < 0.5 ps RMS) | Low (typical < 0.5 ps RMS) | Low jitter preserves clock signal integrity, critical for high-speed interfaces. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 5PB1108CMGI | 5PB1110NDGI |
|---|---|---|
| Part Status | Active | Active |
| Type | Fanout Buffer (Distribution) | Fanout Buffer (Distribution) |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:8 | 1:10 |
| Differential - Input: Output | No/No | No/No |
| Input | LVCMOS | LVCMOS |
| Output | LVCMOS | LVCMOS |
| Frequency - Max | 200 MHz | 200 MHz |
| Voltage - Supply | 1.71V ~ 3.465V | 1.71V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | 5PB1108 | - |
Frequently asked questions
What are the 5PB1110NDGI and 5PB1108CMGI?
The 5PB1110NDGI and 5PB1108CMGI are Renesas (formerly IDT) 5PB series clock fanout buffers. The 5PB1110NDGI is a 1:10 LVCMOS clock buffer, while the 5PB1108CMGI is a 1:8 LVCMOS clock buffer. Both are designed for low-skew clock distribution in applications such as networking, computing, and industrial systems.
What is the difference in fanout between the 5PB1110NDGI and 5PB1108CMGI?
The 5PB1110NDGI provides 10 single-ended LVCMOS outputs, whereas the 5PB1108CMGI provides 8 single-ended LVCMOS outputs. The fanout ratio directly determines how many clock loads each device can drive.
Do the 5PB1110NDGI and 5PB1108CMGI have the same package type?
No. The 5PB1110NDGI is supplied in a 32-pin VFQFN package, while the 5PB1108CMGI is supplied in a 24-pin QSOP package. The different package footprints and pin counts prevent a direct drop-in replacement without PCB redesign.
Are the 5PB1110NDGI and 5PB1108CMGI pin-compatible?
No. Because they have different pin counts (32 pins vs. 24 pins) and different package types (VFQFN vs. QSOP), the two devices are not pin-compatible. Each requires its own PCB land pattern and layout.
What supply voltage do the 5PB1110NDGI and 5PB1108CMGI operate at?
Both devices operate from a 3.3 V nominal supply voltage. They are specified for 3.3 V LVCMOS input and output levels. Always confirm the exact operating range in the respective Renesas datasheet before design.
Can the 5PB1110NDGI and 5PB1108CMGI be used in the same application?
Yes, both are clock fanout buffers suitable for similar low-skew clock distribution applications. The choice between them depends on the required number of outputs, available board space, and package constraints. The 5PB1110NDGI offers more outputs but requires a larger pin count and a different footprint.
What is the output skew performance of the 5PB1110NDGI and 5PB1108CMGI?
Both devices are designed for low output-to-output skew, typical of the 5PB series clock buffers. For exact skew specifications, refer to the official Renesas datasheets for the 5PB1110NDGI and 5PB1108CMGI, as values may differ between the two part numbers.
Are the 5PB1110NDGI and 5PB1108CMGI RoHS compliant?
Yes. Both the 5PB1110NDGI and 5PB1108CMGI are offered as RoHS-compliant packages by Renesas. Confirm the specific ordering part number and its environmental compliance status on the manufacturer or authorized distributor website before finalizing a bill of materials.