Part A
5PB1102CMGI
Renesas Electronics Corporation
- Lifecycle
- Active
- Stock
- 7057 PCS
- Series
- Clock-Timing - Clock Buffers, Drivers
Replacement verdict
Compatible functional replacement candidate
The 5PB1102CMGI and 5PB1104CMGI are functionally compatible clock buffer fanout devices from the same family, sharing identical supply voltage, output type, and package footprint. The 5PB1104CMGI provides two additional output channels, making it a viable higher-fanout replacement for the 5PB1102CMGI in most applications where the extra outputs are acceptable or can remain unconnected.
Output Type
High match
Supply Voltage
High match
Package Type
High match
Output Channel Count
Validation required
Parts at a glance
Part B
5PB1104CMGI
Renesas Electronics Corporation
- Lifecycle
- Active
- Stock
- 9312 PCS
- 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 | 5PB1104CMGI | 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 | Differential (LVDS/LVPECL/HCSL/CML) | Differential (LVDS/LVPECL/HCSL/CML) | Defines the signal format the buffer accepts; matching input type ensures compatibility with the upstream clock source. |
| Output Type | LVCMOS | LVCMOS | Specifies the output signaling standard, which must match the downstream device's input requirements. |
| Supply Voltage | 3.3 V | 3.3 V | The operating voltage must be compatible with the system power rail to avoid level-shifting or damage. |
| Maximum Output Frequency | 200 MHz | 200 MHz | Sets the highest clock rate the buffer can pass, which must meet or exceed the system clock requirement. |
| Package Type | 8-TSSOP | 8-TSSOP | Footprint and pin count must match the PCB layout for drop-in compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures the device functions reliably across the intended environmental conditions of the application. |
| Output-to-Output Skew | 50 ps (max) | 50 ps (max) | Low skew between outputs is critical for synchronous timing in multi-load clock distribution. |
| Additive Phase Jitter | 0.5 ps (typical) | 0.5 ps (typical) | Jitter performance affects signal integrity and bit error rates in high-speed serial interfaces. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 5PB1102CMGI | 5PB1104CMGI |
|---|---|---|
| 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 ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | 5PB1102 | 5PB1104 |
| Packaging | Strip | - |
Frequently asked questions
What are the 5PB1102CMGI and 5PB1104CMGI devices?
The 5PB1102CMGI and 5PB1104CMGI are Renesas (formerly IDT) 5PB11xx series LVCMOS clock fanout buffers. They distribute one input clock to multiple outputs with low additive jitter, targeting applications such as networking, computing, and industrial systems that require clean clock distribution.
How do the 5PB1102CMGI and 5PB1104CMGI differ in output count?
The 5PB1102CMGI is a 1-to-2 fanout buffer providing two LVCMOS outputs, while the 5PB1104CMGI is a 1-to-4 fanout buffer providing four LVCMOS outputs. The output count is the primary functional difference between the two part numbers.
Are the 5PB1102CMGI and 5PB1104CMGI pin-compatible?
No. Because the 5PB1104CMGI provides two additional outputs compared with the 5PB1102CMGI, the two devices do not share an identical pinout. A board designed for one device cannot be populated with the other without verifying pin functions and package layout against the respective Renesas datasheets.
Do the 5PB1102CMGI and 5PB1104CMGI use the same package type?
Both devices are offered in the same package family, the CMGI suffix indicating a specific package and temperature grade in Renesas nomenclature. However, the exact pin count and pin assignment differ due to the different number of outputs, so designers must confirm the package drawing and land pattern for each specific part number.
What supply voltage do the 5PB1102CMGI and 5PB1104CMGI require?
Both devices operate from a nominal 3.3 V LVCMOS supply, consistent with the 5PB11xx family specifications. Designers should verify the exact recommended operating voltage range, absolute maximum ratings, and decoupling requirements in the official Renesas datasheet for each part number before finalizing a design.
Can the 5PB1102CMGI be replaced by the 5PB1104CMGI in an existing design?
Not as a drop-in replacement. Although both are LVCMOS fanout buffers from the same family, the 5PB1104CMGI has additional outputs and a different pinout. Replacement requires verifying pin compatibility, unused output termination, input clock compatibility, jitter budget, and PCB layout against the Renesas datasheet for the 5PB1104CMGI.
What is the typical additive jitter performance of these devices?
The 5PB11xx family is specified for low additive phase jitter suitable for clock distribution in sensitive systems. Exact additive jitter values depend on output frequency, supply voltage, and measurement conditions, so the verified typical and maximum jitter figures should be taken directly from the Renesas datasheet for the 5PB1102CMGI and 5PB1104CMGI rather than assumed to be identical.
Which applications are appropriate for the 5PB1102CMGI versus the 5PB1104CMGI?
The 5PB1102CMGI suits designs needing two low-jitter LVCMOS clock copies, while the 5PB1104CMGI suits designs needing four. Selection depends on the required number of clock loads, board space, and whether the additional outputs can be routed without degrading signal integrity. Both are intended for clock fanout in networking, computing, and industrial equipment.