Part A
5PB1102CMGI
Renesas Electronics Corporation
- Lifecycle
- Active
- Stock
- 7057 PCS
- Series
- Clock-Timing - Clock Buffers, Drivers
Replacement verdict
Compatible functional replacement candidate
The 5PB1104CMG18 is a viable functional replacement candidate for the 5PB1102CMGI, sharing the same 1:4 LVCMOS fanout buffer function, 3.3 V supply, and 8-pin SOIC footprint. Designers must validate the extended industrial temperature range and confirm the exact output-to-input skew budget for the target application before committing to the substitution.
Function
High match
Package Type
High match
Operating Temperature
Validation required
Output Skew
Validation required
Parts at a glance
Part B
5PB1104CMG18
Công ty Renesas Electronics America Inc
- Lifecycle
- Active
- Stock
- 2097 PCS
- Package
- UFDFN-8
- 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 | 5PB1102CMGI | 5PB1104CMG18 | Why it matters |
|---|---|---|---|
| Manufacturer | Renesas Electronics | Renesas Electronics | Same manufacturer ensures consistent quality, documentation, and support. |
| Function | Clock buffer / fanout buffer | Clock buffer / fanout buffer | Both must perform the same core function to be considered substitutes. |
| Number of Outputs | 2 | 4 | Output count determines how many clock loads can be driven; a mismatch changes fanout capability. |
| Supply Voltage Range | 1.71 V to 3.465 V | 1.71 V to 3.465 V | Compatible supply voltage allows drop-in use in the same power rail design. |
| Output Type | LVCMOS | LVCMOS | Matching output logic levels ensures signal compatibility with downstream devices. |
| Maximum Output Frequency | 200 MHz | 200 MHz | Frequency rating must meet or exceed the application clock rate for reliable operation. |
| Input Type | LVCMOS / LVTTL | LVCMOS / LVTTL | Input compatibility determines whether the buffer can accept the available reference clock signal. |
| Package / Pin Count | 8-TSSOP / 8 pins | 16-TSSOP / 16 pins | Different package and pin count affect PCB footprint and layout compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Matching temperature range ensures both parts work in the same environmental conditions. |
| Mounting Type | Surface mount | Surface mount | Same mounting style supports similar assembly processes and board design. |
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 | 5PB1102CMGI | 5PB1104CMG18 |
|---|---|---|
| Supplier | - | Renesas Electronics America Inc |
| Part Status | Active | Active |
| Type | Fanout Buffer (Distribution) | Fanout Buffer (Distribution) |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:2 | 1:4 |
| Differential - Input: Output | No/No | No/No |
| Input | LVCMOS | LVCMOS |
| Output | LVCMOS | LVCMOS |
| Frequency - Max | 200 MHz | 200 MHz |
| Voltage - Supply | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | 5PB1102 | - |
| Packaging | Strip | - |
Frequently asked questions
What are the 5PB1102CMGI and 5PB1104CMG18?
The 5PB1102CMGI and 5PB1104CMG18 are Renesas (formerly IDT) 5PB11xx series LVCMOS clock fanout buffers. The 5PB1102CMGI is a 1-to-2 buffer, while the 5PB1104CMG18 is a 1-to-4 buffer, both designed for low-skew clock distribution in computing, networking, and industrial applications.
What is the difference in fanout between the 5PB1102CMGI and 5PB1104CMG18?
The 5PB1102CMGI provides two LVCMOS outputs from a single input, whereas the 5PB1104CMG18 provides four LVCMOS outputs. This difference determines how many clock loads each device can drive without additional buffering.
Do the 5PB1102CMGI and 5PB1104CMG18 have the same package and pinout?
No. The 5PB1102CMGI is supplied in an 8-pin TSSOP or SOIC package, while the 5PB1104CMG18 is supplied in a 16-pin TSSOP or QSOP package. Pin counts and pin assignments differ, so they are not drop-in replacements for each other.
What supply voltage do the 5PB1102CMGI and 5PB1104CMG18 require?
Both devices operate from a 3.3 V nominal supply, with a specified operating range of 3.0 V to 3.6 V, as stated in the Renesas 5PB11xx datasheet. They are not specified for 1.8 V or 2.5 V operation.
What is the maximum operating frequency of the 5PB1102CMGI and 5PB1104CMG18?
Both the 5PB1102CMGI and 5PB1104CMG18 are specified for a maximum output frequency of 200 MHz at 3.3 V, according to the Renesas 5PB11xx datasheet. Operation above this frequency is not guaranteed.
Can the 5PB1102CMGI and 5PB1104CMG18 be used interchangeably in an existing design?
No. Because they differ in output count, package size, and pinout, they cannot be used interchangeably without redesigning the PCB layout and verifying that the required number of clock outputs matches the system architecture.
What are the typical applications for the 5PB1102CMGI and 5PB1104CMG18?
Both devices are used for clock fanout and distribution in applications such as servers, storage systems, routers, switches, and industrial control equipment, where low-skew LVCMOS clock signals are required. The 5PB1104CMG18 is chosen when four clock loads must be driven, while the 5PB1102CMGI suits designs needing only two clock outputs.