Part A
5PB1102CMGI8
компанией Renesas Electronics America Inc
- Lifecycle
- Active
- Stock
- 4224 ПКС
- Package
- UFDFN-8
- Series
- Часовое время - Часовые буферы, драйверы
Replacement verdict
Compatible functional replacement candidate
The 5PB1102CMGI8 and 5PB1104CMGI8 are both single-input, low-skew clock fanout buffers from the same 5PB11xx family, sharing an identical 16-pin TSSOP footprint, 3.3 V supply range, and industrial temperature rating. The primary functional divergence is output count: the 5PB1102 provides 2 LVCMOS outputs while the 5PB1104 provides 4, so the 5PB1104 can directly replace the 5PB1102 in applications requiring additional fanout, provided the downstream clock tree can tolerate the added load and the board layout accommodates the same package. Designers should validate output-to-output skew, additive jitter, and input threshold compatibility against the target system before committing to a drop-in substitution.
Output Channel Count
Validation required
Package Type
High match
Supply Voltage
High match
Operating Temperature
High match
Parts at a glance
Part B
5PB1104CMGI8
компанией Renesas Electronics America Inc
- Lifecycle
- Active
- Stock
- 4409 ПКС
- Package
- UFDFN-8
- Series
- Часовое время - Часовые буферы, драйверы
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 5PB1102CMGI8 | 5PB1104CMGI8 | Why it matters |
|---|---|---|---|
| Number of Outputs | 2 | 4 | Determines how many clock destinations can be driven from a single device, directly affecting fan-out capability and board-level substitutability. |
| Input Type | Differential (LVDS/LVPECL/HCSL/CML) | Differential (LVDS/LVPECL/HCSL/CML) | Defines the signal format the buffer accepts; matching input types ensures compatibility with the upstream clock source. |
| Output Type | LVCMOS | LVCMOS | Specifies the output signaling standard, which must match the downstream receiver's requirements for direct substitution. |
| Maximum Output Frequency | 200 MHz | 200 MHz | Sets the upper limit of clock rates the device can distribute without degrading signal integrity. |
| Supply Voltage | 3.3 V / 2.5 V | 3.3 V / 2.5 V | Must match the system power rail to avoid level-shifting circuitry or damage to the device. |
| Package | 16-VFQFN | 16-VFQFN | Footprint and pinout compatibility determine whether the parts can be swapped on an existing PCB layout. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures the device meets the environmental requirements of the target application. |
| Output-to-Output Skew | 50 ps (max) | 50 ps (max) | Low skew is critical for synchronous systems where timing alignment between clock branches affects setup/hold margins. |
| Additive Phase Jitter | 0.3 ps (typical) | 0.3 ps (typical) | Jitter performance impacts bit error rates in high-speed serial interfaces and ADC/DAC sampling accuracy. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 5PB1102CMGI8 | 5PB1104CMGI8 |
|---|---|---|
| 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 ~ 3.465V | 1.71V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the 5PB1102CMGI8 and 5PB1104CMGI8?
The 5PB1102CMGI8 and 5PB1104CMGI8 are Renesas (formerly IDT) 3.3V LVCMOS clock fanout buffers. The 5PB1102 provides 2 outputs, while the 5PB1104 provides 4 outputs. Both are offered in a 16-pin TSSOP package and are specified for operation over the industrial temperature range.
What is the main difference between the 5PB1102CMGI8 and 5PB1104CMGI8?
The primary difference is the number of clock outputs. The 5PB1102CMGI8 has 2 LVCMOS outputs, and the 5PB1104CMGI8 has 4 LVCMOS outputs. Both devices share the same 3.3V supply, input structure, and 16-pin TSSOP package, but the 5PB1104 provides twice the fanout capability.
Are the 5PB1102CMGI8 and 5PB1104CMGI8 pin-compatible?
No. Although both devices use a 16-pin TSSOP package, the 5PB1102CMGI8 and 5PB1104CMGI8 do not have identical pin assignments because the 5PB1104 uses additional pins for its extra outputs. A direct drop-in replacement is not possible without verifying the pinout and PCB layout against the respective datasheets.
What supply voltage do the 5PB1102CMGI8 and 5PB1104CMGI8 require?
Both devices operate from a 3.3V nominal supply. Designers should confirm the exact recommended operating supply voltage range, input thresholds, and output levels in the Renesas 5PB1102/5PB1104 datasheet before finalizing the power supply design.
What is the operating temperature range for the 5PB1102CMGI8 and 5PB1104CMGI8?
The "I" suffix in both part numbers indicates an industrial temperature grade. The exact operating temperature range should be verified from the Renesas datasheet, as it is a critical parameter for industrial and networking applications.
Can the 5PB1104CMGI8 replace the 5PB1102CMGI8 in an existing design?
Not directly. The 5PB1104CMGI8 has 4 outputs versus 2 outputs on the 5PB1102CMGI8, and the pin assignments differ. Any replacement requires a full review of the schematic, PCB land pattern, output loading, and signal integrity against the manufacturer datasheet.
What applications are the 5PB1102CMGI8 and 5PB1104CMGI8 suitable for?
These LVCMOS clock fanout buffers are typically used in applications requiring low-skew clock distribution, such as networking equipment, servers, storage systems, and industrial electronics. The choice between the 5PB1102CMGI8 and 5PB1104CMGI8 depends on the required number of clock outputs and the available board space.
Where can I find verified technical data for the 5PB1102CMGI8 and 5PB1104CMGI8?
Verified parameters, including pinouts, supply voltage ranges, output characteristics, and package dimensions, are available in the official Renesas datasheet and on authorized distributor websites such as DigiKey, Mouser, and TTI. Always use the manufacturer datasheet as the primary reference for design decisions.