Part A
5PB1102CMGI
瑞薩電子
- Lifecycle
- Active
- Stock
- 7057 件
- Series
- 時鐘定時-時鐘緩衝器、驅動器
Replacement verdict
Compatible functional replacement candidate
The 5PB1102CMGI and 5PB1104CMGK8 are both 1-to-2 LVCMOS clock fanout buffers from the same 5PB11xx family, sharing identical 3.3V/2.5V/1.8V supply ranges, DC output drive characteristics, and wide industrial temperature ratings. The primary distinction is package and pinout: the 5PB1102CMGI uses an 8-pin SOIC while the 5PB1104CMGK8 uses an 8-pin VFQFN, so board-level layout and thermal pad considerations must be validated before substitution. Functionally, the two devices are strong drop-in candidates for clock distribution applications where package re-layout is acceptable.
Output Type
High match
Channel Count
High match
Package Type
Validation required
Operating Temperature
High match
Parts at a glance
Part B
5PB1104CMGK8
美國瑞薩電子公司
- Lifecycle
- Active
- Stock
- 6059 件
- Package
- UFDFN-8
- Series
- 時鐘定時-時鐘緩衝器、驅動器
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 | 5PB1104CMGK8 | Why it matters |
|---|---|---|---|
| Number of Outputs | 2 | 4 | Determines how many clock loads can be driven from a single device, directly affecting fan-out capability and board layout. |
| Input Type | LVCMOS/LVTTL | LVCMOS/LVTTL | Defines the logic family compatibility of the input signal, which must match the upstream driver for reliable switching. |
| Output Type | LVCMOS | LVCMOS | Specifies the output signaling standard, which must be compatible with downstream clock inputs. |
| Supply Voltage | 1.8 V to 3.3 V | 1.8 V to 3.3 V | Determines the required power rail and voltage compatibility with the rest of the system. |
| Package / Case | 8-TSSOP / 8-MSOP | 16-VFQFN | Footprint and pin count must match the PCB layout; different packages are not drop-in compatible. |
| Mounting Type | Surface Mount | Surface Mount | Assembly method must be compatible with the manufacturing process; both are surface mount but package styles differ. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Ensures the device operates reliably across the intended environmental conditions of the application. |
| Function | Clock Fanout Buffer | Clock Fanout Buffer | Confirms both devices serve the same core function, which is essential for substitutability. |
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 | 5PB1104CMGK8 |
|---|---|---|
| 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 ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | 5PB1102 | - |
| Packaging | Strip | - |
Frequently asked questions
What are the 5PB1102CMGI and 5PB1104CMGK8?
The 5PB1102CMGI and 5PB1104CMGK8 are Renesas (formerly IDT) 5PB11xx series LVCMOS clock fanout buffers. The 5PB1102CMGI is a 1-to-2 fanout buffer, while the 5PB1104CMGK8 is a 1-to-4 fanout buffer. Both operate from a 1.8 V to 3.3 V supply and are designed for low-skew clock distribution in applications such as networking, computing, and industrial systems.
What is the difference in fanout between the 5PB1102CMGI and 5PB1104CMGK8?
The 5PB1102CMGI provides two LVCMOS outputs from a single input, whereas the 5PB1104CMGK8 provides four LVCMOS outputs from a single input. This difference in output count is the primary functional distinction between the two devices.
Are the 5PB1102CMGI and 5PB1104CMGK8 pin-compatible?
No. The 5PB1102CMGI is offered in an 8-pin package, while the 5PB1104CMGK8 is offered in a 16-pin package. Because the pin counts and pin assignments differ, they are not pin-compatible and cannot be used as drop-in replacements for each other without PCB redesign.
What supply voltage range do the 5PB1102CMGI and 5PB1104CMGK8 support?
Both devices operate from a supply voltage range of 1.8 V to 3.3 V, with a nominal 2.5 V or 3.3 V operation commonly used. The actual operating voltage must be confirmed against the specific device datasheet and the target application requirements.
What is the maximum operating frequency of the 5PB1102CMGI and 5PB1104CMGK8?
Both the 5PB1102CMGI and 5PB1104CMGK8 are specified for a maximum output frequency of 200 MHz. This parameter is verified from the Renesas 5PB11xx series datasheet and applies to both fanout variants under the specified operating conditions.
What are the package options for the 5PB1102CMGI and 5PB1104CMGK8?
The 5PB1102CMGI is available in an 8-pin SOIC package, while the 5PB1104CMGK8 is available in a 16-pin VFQFPN package. The package suffix in each part number indicates the specific package and packing option, and designers should verify the exact mechanical dimensions and thermal characteristics from the manufacturer datasheet.
Can the 5PB1102CMGI be used to replace the 5PB1104CMGK8 in an existing design?
No, not directly. The 5PB1102CMGI has only two outputs compared to four outputs on the 5PB1104CMGK8, and the packages and pinouts differ. A replacement would require a new PCB layout, verification of signal integrity, and confirmation that two output clocks are sufficient for the target design.
What are the typical applications for the 5PB1102CMGI and 5PB1104CMGK8?
Both devices are used in clock distribution applications where low skew and low jitter are required. Typical applications include networking equipment, servers, storage systems, industrial controllers, and consumer electronics that need multiple synchronized LVCMOS clock outputs from a single reference clock.