Part A
5PB1110NDGI
Renesas Electronics America Inc.
- Lifecycle
- Active
- Stock
- 7570 PCS
- Package
- QFN-20
- Series
- Horário-Horário - Clock Buffers, Drivers
Replacement verdict
Compatible functional replacement candidate
The 5PB1110NDGI and 5PB1108CMGI8 are both 1-to-10 LVCMOS clock fanout buffers from Renesas with matching 1.8V to 3.3V supply range, 10 outputs, and 3.465V absolute maximum input voltage, making the 5PB1110NDGI a viable functional replacement candidate for the 5PB1108CMGI8. However, the 5PB1110NDGI is specified for a wider operating temperature range of -40°C to +105°C versus -40°C to +85°C, and the two devices use different package and pinout configurations, so board-level validation is required before committing to a drop-in substitution.
Output Channel Count
High match
Supply Voltage Range
High match
Operating Temperature Range
Validation required
Package Type
Validation required
Parts at a glance
Part B
5PB1108CMGI8
Renesas Electronics America Inc.
- Lifecycle
- Active
- Stock
- 9440 PCS
- Package
- UFQFN-16
- Series
- Horário-Horário - 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 | 5PB1108CMGI8 | Why it matters |
|---|---|---|---|
| Manufacturer | Renesas Electronics | Renesas Electronics | Same manufacturer ensures consistent quality and support. |
| Function | Clock buffer / fanout buffer | Clock buffer / fanout buffer | Both serve the same core function, enabling direct 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 ensures the device can accept the available clock source signal. |
| Output Type | LVCMOS | LVCMOS | Output signaling must match the 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 matching in the system. |
| Package | VFQFPN-32 | VFQFPN-28 | Different package footprints affect PCB layout and may prevent drop-in replacement. |
| Operating Temperature | -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 meet the system clock speed requirements. |
| Additive Phase Jitter | 0.3 ps RMS (typical) | 0.3 ps RMS (typical) | Low jitter is critical for high-speed serial interfaces and precision timing applications. |
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 | 5PB1110NDGI | 5PB1108CMGI8 |
|---|---|---|
| Supplier | - | Renesas Electronics America Inc |
| Part Status | Active | Active |
| Type | Fanout Buffer (Distribution) | Fanout Buffer (Distribution) |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:10 | 1:8 |
| 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 ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the 5PB1110NDGI and 5PB1108CMGI8?
The 5PB1110NDGI and 5PB1108CMGI8 are Renesas (formerly IDT) 5PB series clock fanout buffers. The 5PB1110NDGI is a 1:10 LVCMOS clock buffer in a 20-pin QFN package, while the 5PB1108CMGI8 is a 1:8 LVCMOS clock buffer in an 8-pin SOIC package. Both are designed for low-skew clock distribution in computing, networking, and industrial applications.
What is the difference in fanout between the 5PB1110NDGI and 5PB1108CMGI8?
The 5PB1110NDGI provides 10 single-ended LVCMOS outputs from one input, whereas the 5PB1108CMGI8 provides 8 single-ended LVCMOS outputs. The fanout ratio is the primary functional difference between these two devices.
Are the 5PB1110NDGI and 5PB1108CMGI8 pin-to-pin compatible?
No. The 5PB1110NDGI uses a 20-pin QFN package, while the 5PB1108CMGI8 uses an 8-pin SOIC package. They have different pin counts, pin assignments, and PCB land patterns, so they are not drop-in replacements for each other.
What supply voltage do the 5PB1110NDGI and 5PB1108CMGI8 operate at?
Both devices operate from a 3.3 V or 2.5 V supply, depending on the specific ordering option and configuration. Designers should consult the respective Renesas datasheets for the exact recommended operating supply voltage range and any voltage-specific ordering codes.
What is the maximum operating frequency of the 5PB1110NDGI and 5PB1108CMGI8?
Both the 5PB1110NDGI and 5PB1108CMGI8 are specified for clock input frequencies up to 200 MHz. Actual maximum frequency may depend on supply voltage, load conditions, and output termination. Verify against the latest Renesas datasheet for the specific device ordering part number.
What are the typical applications for the 5PB1110NDGI and 5PB1108CMGI8?
These clock buffers are typically used in applications requiring low-skew clock distribution, such as servers, storage systems, networking equipment, and industrial controllers. The 5PB1110NDGI is suited for designs needing more output copies, while the 5PB1108CMGI8 is suited for space-constrained designs requiring fewer outputs.
Do the 5PB1110NDGI and 5PB1108CMGI8 support zero-delay or PLL bypass operation?
No. The 5PB1110NDGI and 5PB1108CMGI8 are non-PLL clock fanout buffers. They do not provide zero-delay or PLL bypass functionality. They distribute an input clock to multiple outputs with low skew and low additive jitter, but they do not perform frequency synthesis or phase alignment.
What is the output type of the 5PB1110NDGI and 5PB1108CMGI8?
Both devices provide LVCMOS-compatible single-ended outputs. The outputs are designed to drive standard LVCMOS input stages and are not differential (e.g., not LVDS, LVPECL, or HCSL).
Can the 5PB1110NDGI and 5PB1108CMGI8 be used in the same design for different clock domains?
Yes, they can be used in the same design to distribute different clock signals, provided each device is configured and powered according to its datasheet. However, they are separate ICs with different packages and pinouts, so they require independent PCB footprints and decoupling networks.